Everything About Crossed Roller Bearings

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Everything About Crossed Roller Bearings

The rolling elements of crossed roller bearings generally use cylindrical rollers or tapered rollers arranged crosswise on a single raceway. The rollers are separated by cages or spacers. Crossed roller bearings have high rotation accuracy, large load-bearing capacity, small dimensions, high rotation speed and rigidity, and have a wide range of applications. Uses and advantages that other types of bearings cannot match. Generally speaking, according to different rolling elements, crossed roller bearings can be divided into crossed cylindrical roller bearings and crossed tapered roller bearings. This sharing is all the information you should know about crossed cylindrical roller bearings.

Crossed roller bearings are now used on industrial robots, because roller bearings are a special type of bearing with a divided inner ring and rotating outer ring. At the same time, roller bearings can withstand loads in all directions and have a strong ability to complete some comparisons. High-precision rotational movement, so it is now widely used. Let us understand the characteristics of crossed cylindrical roller bearings.

Easy to operate and install

Crossed roller bearings are divided into two parts, the outer ring or the inner ring. After the rollers and retainers are installed, they are fixed together, so the installation operation is very simple. When the inner and outer rings are integrated, if both inner and outer rings have mounting holes, there is no need for fixed flanges and support seats during installation. If the ultra-thin model has no mounting holes, the flange and support base must be fixed.

Saving space

The dimensions of the inner and outer rings of crossed cylindrical roller bearings have been miniaturized to a minimum. The ultra-thin structure in particular has a small size close to the limit and has high rigidity, so it is suitable for the joints or rotating parts of industrial robots and the rotation of machining centers. It is widely used in work tables, robot rotating parts, precision rotating tables, medical instruments, measuring instruments, IC manufacturing equipment, etc.

Excellent rotation accuracy

As mentioned before, the internal structure of crossed cylindrical roller bearings uses rollers arranged perpendicularly at 90° to each other. Spacers or isolation blocks can prevent friction between the rollers caused by the tilt of the rollers. In addition, there will be no contact or locking of one roller; at the same time, because the inner and outer rings are divided structures, the gap can be adjusted, and high-precision rotation can be obtained even if preload is applied.

Bear axial and radial loads

The internal structure of a crossed roller bearing usually consists of two annular tracks with cylindrical rollers. The rollers on the track are arranged in a cross arrangement, and the axis of each roller is perpendicular to the axis of rotation of the bearing. This cross arrangement makes the bearings have high rigidity and precision, and can withstand loads in all directions such as large radial loads, axial loads and moment loads.

Rolling elements

The rolling elements of crossed roller bearings are cylindrical rollers, and their surfaces are highly precision ground and polished, resulting in high geometric accuracy and low surface roughness. In addition, the diameter and length of the cylindrical rollers are larger than those of ordinary bearings, which makes the rolling elements have higher load-bearing capacity and rigidity.

Orbit accuracy

The track accuracy of crossed roller bearings is very high, and quenching treatment and precision grinding technology are usually used to ensure the geometric accuracy and surface hardness of the track. In addition, the rollers on the track are arranged in a cross arrangement, so that the bearing can better distribute the load when it is loaded, thus improving the rigidity and accuracy of the bearing.

Sealing performance

Crossed roller bearings are usually sealed with sealing rings to prevent dust, moisture and other impurities from entering the interior of the bearing. The material of the sealing ring is usually wear-resistant, high-temperature-resistant, corrosion-resistant synthetic rubber or polytetrafluoroethylene, which can ensure the long life and reliability of the bearing.

Service life

Crossed roller bearings have a long service life due to their high precision, high rigidity and high sealing performance. Under normal conditions, its service life can reach than tens of thousands of hours, and it is suitable for various high-precision, high-rigidity, and high-reliability mechanical systems.

Wide scope of application

On the basis of the basic crossed cylindrical roller bearing, many structurally different crossed cylindrical roller bearings are derived to facilitate use in occasions with different requirements. From the broad category, it can be divided into: basic crossed cylindrical roller bearings, high rigidity crossed cylindrical roller bearings, ultra-thin crossed cylindrical roller bearings; from the external structure, there are inner ring split type and outer ring split type type, integrated inner and outer ring type; from the internal structure, it can be divided into full roller type, metal window cage type, nylon or metal isolation block type; according to the connection method, there are bolt connection type and rivet connection type Type and spring disc type, etc., there are many types.

In addition to the above unique features, crossed cylindrical roller bearings also have high rotational speeds; they can reduce shaft length and processing costs, and have limited changes in geometric dimensions caused by thermal expansion; they use nylon separators to have low rotational inertia, low starting torque, and easy control of angles. Indexing; optimized preload force, high rigidity, high precision of guide roller operation; sufficient lubrication and other characteristics.

Crossed cylindrical roller bearing catalog

Crossed roller bearing is a special type of bearing with divided inner ring and rotating outer ring. Because the divided inner ring or outer ring is fixed with the cross roller ring after the rollers and spacers are installed to prevent separation from each other, the installation of the cross roller ring is simple. Since the rollers are arranged in a crosswise manner, only one set of cross-roller collars can withstand loads in all directions. Compared with traditional models, the rigidity is increased by 3 to 4 times. At the same time, because the inner ring or outer ring of the crossed roller bearing has a two-part structure, the bearing clearance can be adjusted, and high-precision rotation can be obtained even if preload is applied. over, due to its special structure, it is often used as a spherical bearing in industrial robots.

RB

RB (integrated inner ring, split outer ring) is the basic type of crossed cylindrical roller bearing. The outer ring is divided into two pieces, and the inner ring is an integral structure. It is most suitable for occasions that require inner ring rotation accuracy.

Part Number	Seal Type	Bore Dia	Outer Dia	Width	Shoulder Height Ds(max)	Ring Material	Roller Material	Weight
RB1000110	Open	1000 mm	1250 mm	110 mm	1057 mm	Steel	Steel	360 Kg
RB1000110UU	Open	1000 mm	1250 mm	110 mm	1057 mm	Steel	Steel	360 Kg
RB10016	Open	100 mm	140 mm	16 mm	109 mm	Steel	Steel	0.83 Kg
RB10016UU	Sealed	100 mm	140 mm	16 mm	109 mm	Steel	Steel	0.83 Kg
RB10020	Open	100 mm	150 mm	20 mm	113 mm	Steel	Steel	1.45 Kg
RB10020UU	Sealed	100 mm	150 mm	20 mm	113 mm	Steel	Steel	1.45 Kg
RB11012	Open	110 mm	135 mm	12 mm	117 mm	Steel	Steel	0.4 Kg
RB11012UU	Sealed	110 mm	135 mm	12 mm	117 mm	Steel	Steel	0.4 Kg
RB11015	Open	110 mm	145 mm	15 mm	119 mm	Steel	Steel	0.75 Kg
RB11015UU	Sealed	110 mm	145 mm	15 mm	119 mm	Steel	Steel	0.75 Kg
RB11020	Open	110 mm	160 mm	20 mm	120 mm	Steel	Steel	1.56 Kg
RB11020UU	Sealed	110 mm	160 mm	20 mm	120 mm	Steel	Steel	1.56 Kg
RB12016	Open	120 mm	150 mm	16 mm	127 mm	Steel	Steel	0.72 Kg
RB12016UU	Sealed	120 mm	150 mm	16 mm	127 mm	Steel	Steel	0.72 Kg
RB12025	Open	120 mm	180 mm	25 mm	133 mm	Steel	Steel	2.62 Kg
RB12025UU	Sealed	120 mm	180 mm	25 mm	133 mm	Steel	Steel	2.62 Kg
RB1250110	Open	1250 mm	1500 mm	110 mm	1308 mm	Steel	Steel	440 Kg
RB1250110UU	Open	1250 mm	1500 mm	110 mm	1308 mm	Steel	Steel	440 Kg
RB13015	Open	130 mm	160 mm	15 mm	137 mm	Steel	Steel	0.72 Kg
RB13015UU	Sealed	130 mm	160 mm	15 mm	137 mm	Steel	Steel	0.72 Kg
RB13025	Open	130 mm	190 mm	25 mm	143 mm	Steel	Steel	2.82 Kg
RB13025UU	Sealed	130 mm	190 mm	25 mm	143 mm	Steel	Steel	2.82 Kg
RB14016	Open	140 mm	175 mm	16 mm	147 mm	Steel	Steel	1 Kg
RB14016UU	Sealed	140 mm	175 mm	16 mm	147 mm	Steel	Steel	1 Kg
RB14025	Open	140 mm	200 mm	25 mm	154 mm	Steel	Steel	2.96 Kg
RB14025UU	Sealed	140 mm	200 mm	25 mm	154 mm	Steel	Steel	2.96 Kg
RB15013	Open	150 mm	180 mm	13 mm	157 mm	Steel	Steel	0.68 Kg
RB15013UU	Sealed	150 mm	180 mm	13 mm	157 mm	Steel	Steel	0.68 Kg
RB15025	Open	150 mm	210 mm	25 mm	164 mm	Steel	Steel	3.16 Kg
RB15025UU	Sealed	150 mm	210 mm	25 mm	164 mm	Steel	Steel	3.16 Kg
RB15030	Open	150 mm	230 mm	30 mm	169 mm	Steel	Steel	5.3 Kg
RB15030UU	Sealed	150 mm	230 mm	30 mm	169 mm	Steel	Steel	5.3 Kg
RB16025	Open	160 mm	220 mm	25 mm	173 mm	Steel	Steel	3.14 Kg
RB16025UU	Sealed	160 mm	220 mm	25 mm	173 mm	Steel	Steel	3.14 Kg
RB17020	Open	170 mm	220 mm	20 mm	184 mm	Steel	Steel	2.21 Kg
RB17020UU	Sealed	170 mm	220 mm	20 mm	184 mm	Steel	Steel	2.21 Kg
RB18025	Open	180 mm	240 mm	25 mm	195 mm	Steel	Steel	3.44 Kg
RB18025UU	Sealed	180 mm	240 mm	25 mm	195 mm	Steel	Steel	3.44 Kg
RB19025	Open	190 mm	240 mm	25 mm	202 mm	Steel	Steel	2.99 Kg
RB19025UU	Sealed	190 mm	240 mm	25 mm	202 mm	Steel	Steel	2.99 Kg
RB20025	Open	200 mm	260 mm	25 mm	215 mm	Steel	Steel	4 Kg
RB20025UU	Sealed	200 mm	260 mm	25 mm	215 mm	Steel	Steel	4 Kg
RB20030	Open	200 mm	280 mm	30 mm	221 mm	Steel	Steel	6.7 Kg
RB20035	Open	200 mm	295 mm	35 mm	225 mm	Steel	Steel	9.6 Kg
RB2008	Open	20 mm	36 mm	8 mm	23.5 mm	Steel	Steel	0.04 Kg
RB2008UU	Sealed	20 mm	36 mm	8 mm	23.5 mm	Steel	Steel	0.04 Kg
RB22025	Open	220 mm	280 mm	25 mm	235 mm	Steel	Steel	4.1 Kg
RB22025UU	Sealed	220 mm	280 mm	25 mm	235 mm	Steel	Steel	4.1 Kg
RB24025	Open	240 mm	300 mm	25 mm	256 mm	Steel	Steel	4.5 Kg
RB24025UU	Sealed	240 mm	300 mm	25 mm	256 mm	Steel	Steel	4.5 Kg
RB25025	Open	250 mm	310 mm	25 mm	265 mm	Steel	Steel	5 Kg
RB25025UU	Sealed	250 mm	310 mm	25 mm	265 mm	Steel	Steel	5 Kg
RB25030	Open	250 mm	330 mm	30 mm	269 mm	Steel	Steel	8.1 Kg
RB25040	Open	250 mm	355 mm	40 mm	275 mm	Steel	Steel	14.8 Kg
RB2508	Open	25 mm	41 mm	8 mm	28.5 mm	Steel	Steel	0.05 Kg
RB2508UU	Sealed	25 mm	41 mm	8 mm	28.5 mm	Steel	Steel	0.05 Kg
RB30025	Open	300 mm	360 mm	25 mm	315 mm	Steel	Steel	5.9 Kg
RB30025UU	Sealed	300 mm	360 mm	25 mm	315 mm	Steel	Steel	5.9 Kg
RB30035	Open	300 mm	395 mm	35 mm	322 mm	Steel	Steel	13.4 Kg
RB30040	Open	300 mm	405 mm	40 mm	326 mm	Steel	Steel	17.2 Kg
RB3010	Open	30 mm	55 mm	10 mm	37 mm	Steel	Steel	0.12 Kg
RB3010UU	Sealed	30 mm	55 mm	10 mm	37 mm	Steel	Steel	0.12 Kg
RB35020	Open	350 mm	400 mm	20 mm	363 mm	Steel	Steel	3.9 Kg
RB35020UU	Sealed	350 mm	400 mm	20 mm	363 mm	Steel	Steel	3.9 Kg
RB3510	Open	35 mm	60 mm	10 mm	41 mm	Steel	Steel	0.13 Kg
RB3510UU	Sealed	35 mm	60 mm	10 mm	41 mm	Steel	Steel	0.13 Kg
RB40035	Open	400 mm	480 mm	35 mm	422 mm	Steel	Steel	14.5 Kg
RB40040	Open	400 mm	510 mm	40 mm	428 mm	Steel	Steel	23.5 Kg
RB4010	Open	40 mm	65 mm	10 mm	46.5 mm	Steel	Steel	0.16 Kg
RB4010UU	Sealed	40 mm	65 mm	10 mm	46.5 mm	Steel	Steel	0.16 Kg
RB45025	Open	450 mm	500 mm	25 mm	464 mm	Steel	Steel	6.6 Kg
RB45025UU	Sealed	450 mm	500 mm	25 mm	464 mm	Steel	Steel	6.6 Kg
RB4510	Open	45 mm	70 mm	10 mm	51 mm	Steel	Steel	0.17 Kg
RB4510UU	Sealed	45 mm	70 mm	10 mm	51 mm	Steel	Steel	0.17 Kg
RB50025	Open	500 mm	550 mm	25 mm	514 mm	Steel	Steel	7.3 Kg
RB50025UU	Sealed	500 mm	550 mm	25 mm	514 mm	Steel	Steel	7.3 Kg
RB50040	Open	500 mm	600 mm	40 mm	526 mm	Steel	Steel	26 Kg
RB50040UU	Sealed	500 mm	600 mm	40 mm	526 mm	Steel	Steel	26 Kg
RB50050	Open	500 mm	625 mm	50 mm	536 mm	Steel	Steel	41.7 Kg
RB50050UU	Sealed	500 mm	625 mm	50 mm	536 mm	Steel	Steel	41.7 Kg
RB5013	Open	50 mm	80 mm	13 mm	57 mm	Steel	Steel	0.27 Kg
RB5013UU	Sealed	50 mm	80 mm	13 mm	57 mm	Steel	Steel	0.27 Kg
RB60040	Open	600 mm	700 mm	40 mm	627 mm	Steel	Steel	29 Kg
RB6013	Open	60 mm	90 mm	13 mm	67 mm	Steel	Steel	0.3 Kg
RB6013UU	Sealed	60 mm	90 mm	13 mm	67 mm	Steel	Steel	0.3 Kg
RB70045	Open	700 mm	815 mm	45 mm	731 mm	Steel	Steel	46 Kg
RB7013	Open	70 mm	100 mm	13 mm	77 mm	Steel	Steel	0.35 Kg
RB7013UU	Sealed	70 mm	100 mm	13 mm	77 mm	Steel	Steel	0.35 Kg
RB80070	Open	800 mm	950 mm	70 mm	836 mm	Steel	Steel	105 Kg
RB8016	Open	80 mm	120 mm	16 mm	88 mm	Steel	Steel	0.7 Kg
RB8016UU	Sealed	80 mm	120 mm	16 mm	88 mm	Steel	Steel	0.7 Kg
RB90070	Open	900 mm	1050 mm	70 mm	937 mm	Steel	Steel	120 Kg
RB90070UU	Open	900 mm	1050 mm	70 mm	937 mm	Steel	Steel	120 Kg
RB9016	Open	90 mm	130 mm	16 mm	98 mm	Steel	Steel	0.75 Kg
RB9016UU	Sealed	90 mm	130 mm	16 mm	98 mm	Steel	Steel	0.75 Kg

RE:

RE is also the basic type of crossed roller bearing. The overall dimensions are the same as the RB type, but the structure is the outer ring as a whole and the inner ring is divided into two pieces. It is most suitable for occasions that require the rotation accuracy of the outer ring.

Part Number	Seal Type	Bore Dia	Outer Dia	Width	Ring Material	Roller Material	Temperature Range	Weight
RE10016	Open	100 mm	140 mm	16 mm	Steel	Steel	0 -230 °F	0.83 Kg
RE10016UU	Sealed	100 mm	140 mm	16 mm	Steel	Steel	0 -230 °F	0.83 Kg
RE10020	Open	100 mm	150 mm	20 mm	Steel	Steel	0 -230 °F	1.45 Kg
RE10020UU	Sealed	100 mm	150 mm	20 mm	Steel	Steel	0 -230 °F	1.45 Kg
RE11012	Open	110 mm	135 mm	12 mm	Steel	Steel	0 -230 °F	0.4 Kg
RE11012UU	Sealed	110 mm	135 mm	12 mm	Steel	Steel	0 -230 °F	0.4 Kg
RE11015	Open	110 mm	145 mm	15 mm	Steel	Steel	0 -230 °F	0.75 Kg
RE11015UU	Sealed	110 mm	145 mm	15 mm	Steel	Steel	0 -230 °F	0.75 Kg
RE11020	Open	110 mm	160 mm	20 mm	Steel	Steel	0 -230 °F	1.56 Kg
RE11020UU	Sealed	110 mm	160 mm	20 mm	Steel	Steel	0 -230 °F	1.56 Kg
RE12016	Open	120 mm	150 mm	16 mm	Steel	Steel	0 -230 °F	0.72 Kg
RE12016UU	Sealed	120 mm	150 mm	16 mm	Steel	Steel	0 -230 °F	0.72 Kg
RE12025	Open	120 mm	180 mm	25 mm	Steel	Steel	0 -230 °F	2.62 Kg
RE12025UU	Sealed	120 mm	180 mm	25 mm	Steel	Steel	0 -230 °F	2.62 Kg
RE13015	Open	130 mm	160 mm	15 mm	Steel	Steel	0 -230 °F	0.72 Kg
RE13015UU	Sealed	130 mm	160 mm	15 mm	Steel	Steel	0 -230 °F	0.72 Kg
RE13025	Open	130 mm	190 mm	25 mm	Steel	Steel	0 -230 °F	2.82 Kg
RE13025UU	Sealed	130 mm	190 mm	25 mm	Steel	Steel	0 -230 °F	2.82 Kg
RE14016	Open	140 mm	175 mm	16 mm	Steel	Steel	0 -230 °F	1 Kg
RE14016UU	Sealed	140 mm	175 mm	16 mm	Steel	Steel	0 -230 °F	1 Kg
RE14025	Open	140 mm	200 mm	25 mm	Steel	Steel	0 -230 °F	2.96 Kg
RE14025UU	Sealed	140 mm	200 mm	25 mm	Steel	Steel	0 -230 °F	2.96 Kg
RE15013	Open	150 mm	180 mm	13 mm	Steel	Steel	0 -230 °F	0.68 Kg
RE15013UU	Sealed	150 mm	180 mm	13 mm	Steel	Steel	0 -230 °F	0.68 Kg
RE15025	Open	150 mm	210 mm	25 mm	Steel	Steel	0 -230 °F	3.16 Kg
RE15025UU	Sealed	150 mm	210 mm	25 mm	Steel	Steel	0 -230 °F	3.16 Kg
RE15030	Open	150 mm	230 mm	30 mm	Steel	Steel	0 -230 °F	5.3 Kg
RE15030UU	Sealed	150 mm	230 mm	30 mm	Steel	Steel	0 -230 °F	5.3 Kg
RE16025	Open	160 mm	220 mm	25 mm	Steel	Steel	0 -230 °F	3.14 Kg
RE16025UU	Sealed	160 mm	220 mm	25 mm	Steel	Steel	0 -230 °F	3.14 Kg
RE17020	Open	170 mm	220 mm	20 mm	Steel	Steel	0 -230 °F	2.21 Kg
RE17020UU	Sealed	170 mm	220 mm	20 mm	Steel	Steel	0 -230 °F	2.21 Kg
RE18025	Open	180 mm	240 mm	25 mm	Steel	Steel	0 -230 °F	3.44 Kg
RE18025UU	Sealed	180 mm	240 mm	25 mm	Steel	Steel	0 -230 °F	3.44 Kg
RE19025	Open	190 mm	240 mm	25 mm	Steel	Steel	0 -230 °F	2.99 Kg
RE19025UU	Sealed	190 mm	240 mm	25 mm	Steel	Steel	0 -230 °F	2.99 Kg
RE20025	Open	200 mm	260 mm	25 mm	Steel	Steel	0 -230 °F	4 Kg
RE20025UU	Sealed	200 mm	260 mm	25 mm	Steel	Steel	0 -230 °F	4 Kg
RE20030	Open	200 mm	280 mm	30 mm	Steel	Steel	0 -230 °F	6.7 Kg
RE20030UU	Sealed	200 mm	280 mm	30 mm	Steel	Steel	0 -230 °F	6.7 Kg
RE20035	Open	200 mm	295 mm	35 mm	Steel	Steel	0 -230 °F	9.6 Kg
RE20035UU	Sealed	200 mm	295 mm	35 mm	Steel	Steel	0 -230 °F	9.6 Kg
RE2008	Open	20 mm	36 mm	8 mm	Steel	Steel	0 -230 °F	0.04 Kg
RE2008UU	Sealed	20 mm	36 mm	8 mm	Steel	Steel	0 -230 °F	0.04 Kg
RE22025	Open	220 mm	280 mm	25 mm	Steel	Steel	0 -230 °F	4.1 Kg
RE22025UU	Sealed	220 mm	280 mm	25 mm	Steel	Steel	0 -230 °F	4.1 Kg
RE24025	Open	240 mm	300 mm	25 mm	Steel	Steel	0 -230 °F	4.5 Kg
RE24025UU	Sealed	240 mm	300 mm	25 mm	Steel	Steel	0 -230 °F	4.5 Kg
RE25025	Open	250 mm	310 mm	25 mm	Steel	Steel	0 -230 °F	5 Kg
RE25025UU	Sealed	250 mm	310 mm	25 mm	Steel	Steel	0 -230 °F	5 Kg
RE25030	Open	250 mm	330 mm	30 mm	Steel	Steel	0 -230 °F	8.1 Kg
RE25030UU	Sealed	250 mm	330 mm	30 mm	Steel	Steel	0 -230 °F	8.1 Kg
RE25040	Open	250 mm	355 mm	40 mm	Steel	Steel	0 -230 °F	14.8 Kg
RE25040UU	Sealed	250 mm	355 mm	40 mm	Steel	Steel	0 -230 °F	14.8 Kg
RE2508	Open	25 mm	41 mm	8 mm	Steel	Steel	0 -230 °F	0.05 Kg
RE2508UU	Sealed	25 mm	41 mm	8 mm	Steel	Steel	0 -230 °F	0.05 Kg
RE30025	Open	300 mm	360 mm	25 mm	Steel	Steel	0 -230 °F	5.9 Kg
RE30025UU	Sealed	300 mm	360 mm	25 mm	Steel	Steel	0 -230 °F	5.9 Kg
RE30035	Open	300 mm	395 mm	35 mm	Steel	Steel	0 -230 °F	13.4 Kg
RE30035UU	Sealed	300 mm	395 mm	35 mm	Steel	Steel	0 -230 °F	13.4 Kg
RE30040	Open	300 mm	405 mm	40 mm	Steel	Steel	0 -230 °F	17.2 Kg
RE30040UU	Sealed	300 mm	405 mm	40 mm	Steel	Steel	0 -230 °F	17.2 Kg
RE3010	Open	30 mm	55 mm	10 mm	Steel	Steel	0 -230 °F	0.12 Kg
RE3010UU	Sealed	30 mm	55 mm	10 mm	Steel	Steel	0 -230 °F	0.12 Kg
RE35020	Open	350 mm	400 mm	20 mm	Steel	Steel	0 -230 °F	3.9 Kg
RE35020UU	Sealed	350 mm	400 mm	20 mm	Steel	Steel	0 -230 °F	3.9 Kg
RE3510	Open	35 mm	60 mm	10 mm	Steel	Steel	0 -230 °F	0.13 Kg
RE3510UU	Sealed	35 mm	60 mm	10 mm	Steel	Steel	0 -230 °F	0.13 Kg
RE40035	Open	400 mm	480 mm	35 mm	Steel	Steel	0 -230 °F	14.5 Kg
RE40035UU	Sealed	400 mm	480 mm	35 mm	Steel	Steel	0 -230 °F	14.5 Kg
RE40040	Open	400 mm	510 mm	40 mm	Steel	Steel	0 -230 °F	23.5 Kg
RE40040UU	Sealed	400 mm	510 mm	40 mm	Steel	Steel	0 -230 °F	23.5 Kg
RE4010	Open	40 mm	65 mm	10 mm	Steel	Steel	0 -230 °F	0.16 Kg
RE4010UU	Sealed	40 mm	65 mm	10 mm	Steel	Steel	0 -230 °F	0.16 Kg
RE45025	Open	450 mm	500 mm	25 mm	Steel	Steel	0 -230 °F	6.6 Kg
RE45025UU	Sealed	450 mm	500 mm	25 mm	Steel	Steel	0 -230 °F	6.6 Kg
RE4510	Open	45 mm	70 mm	10 mm	Steel	Steel	0 -230 °F	0.17 Kg
RE4510UU	Sealed	45 mm	70 mm	10 mm	Steel	Steel	0 -230 °F	0.17 Kg
RE50025	Open	500 mm	550 mm	25 mm	Steel	Steel	0 -230 °F	7.3 Kg
RE50025UU	Sealed	500 mm	550 mm	25 mm	Steel	Steel	0 -230 °F	7.3 Kg
RE50040	Open	500 mm	600 mm	40 mm	Steel	Steel	0 -230 °F	26 Kg
RE50040UU	Sealed	500 mm	600 mm	40 mm	Steel	Steel	0 -230 °F	26 Kg
RE50050	Open	500 mm	625 mm	50 mm	Steel	Steel	0 -230 °F	41.7 Kg
RE50050UU	Sealed	500 mm	625 mm	50 mm	Steel	Steel	0 -230 °F	41.7 Kg
RE5013	Open	50 mm	80 mm	13 mm	Steel	Steel	0 -230 °F	0.27 Kg
RE5013UU	Sealed	50 mm	80 mm	13 mm	Steel	Steel	0 -230 °F	0.27 Kg
RE60040	Open	600 mm	700 mm	40 mm	Steel	Steel	0 -230 °F	29 Kg
RE60040UU	Sealed	600 mm	700 mm	40 mm	Steel	Steel	0 -230 °F	29 Kg
RE6013	Open	60 mm	90 mm	13 mm	Steel	Steel	0 -230 °F	0.3 Kg
RE6013UU	Sealed	60 mm	90 mm	13 mm	Steel	Steel	0 -230 °F	0.3 Kg
RE7013	Open	70 mm	100 mm	13 mm	Steel	Steel	0 -230 °F	0.35 Kg
RE7013UU	Sealed	70 mm	100 mm	13 mm	Steel	Steel	0 -230 °F	0.35 Kg
RE8016	Open	80 mm	120 mm	16 mm	Steel	Steel	0 -230 °F	0.7 Kg
RE8016UU	Sealed	80 mm	120 mm	16 mm	Steel	Steel	0 -230 °F	0.7 Kg
RE9016	Open	90 mm	130 mm	16 mm	Steel	Steel	0 -230 °F	0.75 Kg
RE9016UU	Sealed	90 mm	130 mm	16 mm	Steel	Steel	0 -230 °F	0.75 Kg

RA:

RA is the basic type of crossed roller bearing. The outer ring is divided into two pieces, and the inner ring is an integral structure. It is most suitable for occasions that require the rotation accuracy of the inner ring. This model is a compact model that reduces the thickness of the inner and outer rings of the RB model to the limit. It is most suitable for parts with light weight and compact design, such as rotating parts of robots and manipulators.

Part Number	Seal Type	Bore Dia	Outer Dia	Width	Ring Material	Roller Material	Weight
RA10008	Open	100 mm	116 mm	8 mm	Steel	Steel	0.14 Kg
RA10008C	Open	100 mm	116 mm	8 mm	Steel	Steel	0.14 Kg
RA10008CUU	Sealed	100 mm	116 mm	8 mm	Steel	Steel	0.14 Kg
RA10008UU	Sealed	100 mm	116 mm	8 mm	Steel	Steel	0.14 Kg
RA11008	Open	110 mm	126 mm	8 mm	Steel	Steel	0.15 Kg
RA11008C	Open	110 mm	126 mm	8 mm	Steel	Steel	0.15 Kg
RA11008CUU	Sealed	110 mm	126 mm	8 mm	Steel	Steel	0.15 Kg
RA11008UU	Sealed	110 mm	126 mm	8 mm	Steel	Steel	0.15 Kg
RA12008	Open	120 mm	136 mm	8 mm	Steel	Steel	0.17 Kg
RA12008C	Open	120 mm	136 mm	8 mm	Steel	Steel	0.17 Kg
RA12008CUU	Sealed	120 mm	136 mm	8 mm	Steel	Steel	0.17 Kg
RA12008UU	Sealed	120 mm	136 mm	8 mm	Steel	Steel	0.17 Kg
RA13008	Open	130 mm	146 mm	8 mm	Steel	Steel	0.18 Kg
RA13008C	Open	130 mm	146 mm	8 mm	Steel	Steel	0.18 Kg
RA13008CUU	Sealed	130 mm	146 mm	8 mm	Steel	Steel	0.18 Kg
RA13008UU	Sealed	130 mm	146 mm	8 mm	Steel	Steel	0.18 Kg
RA14008	Open	140 mm	156 mm	8 mm	Steel	Steel	0.19 Kg
RA14008C	Open	140 mm	156 mm	8 mm	Steel	Steel	0.19 Kg
RA14008CUU	Sealed	140 mm	156 mm	8 mm	Steel	Steel	0.19 Kg
RA14008UU	Sealed	140 mm	156 mm	8 mm	Steel	Steel	0.19 Kg
RA15008	Open	150 mm	166 mm	8 mm	Steel	Steel	0.2 Kg
RA15008C	Open	150 mm	166 mm	8 mm	Steel	Steel	0.2 Kg
RA15008CUU	Sealed	150 mm	166 mm	8 mm	Steel	Steel	0.2 Kg
RA15008UU	Sealed	150 mm	166 mm	8 mm	Steel	Steel	0.2 Kg
RA16013	Open	160 mm	186 mm	13 mm	Steel	Steel	0.59 Kg
RA16013C	Open	160 mm	186 mm	13 mm	Steel	Steel	0.59 Kg
RA16013CUU	Sealed	160 mm	186 mm	13 mm	Steel	Steel	0.59 Kg
RA16013UU	Sealed	160 mm	186 mm	13 mm	Steel	Steel	0.59 Kg
RA17013	Open	170 mm	196 mm	13 mm	Steel	Steel	0.64 Kg
RA17013C	Open	170 mm	196 mm	13 mm	Steel	Steel	0.64 Kg
RA17013CUU	Sealed	170 mm	196 mm	13 mm	Steel	Steel	0.64 Kg
RA17013UU	Sealed	170 mm	196 mm	13 mm	Steel	Steel	0.64 Kg
RA18013	Open	180 mm	206 mm	13 mm	Steel	Steel	0.68 Kg
RA18013C	Open	180 mm	206 mm	13 mm	Steel	Steel	0.68 Kg
RA18013CUU	Sealed	180 mm	206 mm	13 mm	Steel	Steel	0.68 Kg
RA18013UU	Sealed	180 mm	206 mm	13 mm	Steel	Steel	0.68 Kg
RA19013	Open	190 mm	216 mm	13 mm	Steel	Steel	0.69 Kg
RA19013C	Open	190 mm	216 mm	13 mm	Steel	Steel	0.69 Kg
RA19013CUU	Sealed	190 mm	216 mm	13 mm	Steel	Steel	0.69 Kg
RA19013UU	Sealed	190 mm	216 mm	13 mm	Steel	Steel	0.69 Kg
RA20013	Open	200 mm	226 mm	13 mm	Steel	Steel	0.71 Kg
RA20013C	Open	200 mm	226 mm	13 mm	Steel	Steel	0.71 Kg
RA20013CUU	Sealed	200 mm	226 mm	13 mm	Steel	Steel	0.71 Kg
RA20013UU	Sealed	200 mm	226 mm	13 mm	Steel	Steel	0.71 Kg
RA5008	Open	50 mm	66 mm	8 mm	Steel	Steel	0.08 Kg
RA5008C	Open	50 mm	66 mm	8 mm	Steel	Steel	0.08 Kg
RA5008CUU	Sealed	50 mm	66 mm	8 mm	Steel	Steel	0.08 Kg
RA5008UU	Sealed	50 mm	66 mm	8 mm	Steel	Steel	0.08 Kg
RA6008	Open	60 mm	76 mm	8 mm	Steel	Steel	0.09 Kg
RA6008C	Open	60 mm	76 mm	8 mm	Steel	Steel	0.09 Kg
RA6008CUU	Sealed	60 mm	76 mm	8 mm	Steel	Steel	0.09 Kg
RA6008UU	Sealed	60 mm	76 mm	8 mm	Steel	Steel	0.09 Kg
RA7008	Open	70 mm	86 mm	8 mm	Steel	Steel	0.1 Kg
RA7008C	Open	70 mm	86 mm	8 mm	Steel	Steel	0.1 Kg
RA7008CUU	Sealed	70 mm	86 mm	8 mm	Steel	Steel	0.1 Kg
RA7008UU	Sealed	70 mm	86 mm	8 mm	Steel	Steel	0.1 Kg
RA8008	Open	80 mm	96 mm	8 mm	Steel	Steel	0.11 Kg
RA8008C	Open	80 mm	96 mm	8 mm	Steel	Steel	0.11 Kg
RA8008CUU	Sealed	80 mm	96 mm	8 mm	Steel	Steel	0.11 Kg
RA8008UU	Sealed	80 mm	96 mm	8 mm	Steel	Steel	0.11 Kg
RA9008	Open	90 mm	106 mm	8 mm	Steel	Steel	0.12 Kg
RA9008C	Open	90 mm	106 mm	8 mm	Steel	Steel	0.12 Kg
RA9008CUU	Sealed	90 mm	106 mm	8 mm	Steel	Steel	0.12 Kg
RA9008UU	Sealed	90 mm	106 mm	8 mm	Steel	Steel	0.12 Kg

RA-C

The main dimensions are the same as RA. Since this model has a notch structure in the outer ring, the outer ring also has high rigidity, so it can also be used in applications where the outer ring rotates.

CRBH:

Its structure is an integral inner and outer ring. It adopts an ultra-thin design and has no mounting holes in the inner and outer rings. It requires flange and support base to be fixed during installation.

Part Number	Seal Type	Bore Dia	Outer Dia	Width	Ring Material	Weight
CRBH30025A	Open	300 mm	360 mm	25 mm	Steel	5.29 Kg
CRBH30025AUU	Sealed	300 mm	360 mm	25 mm	Steel	5.29 Kg
CRBHV10020A	Open	100 mm	150 mm	20 mm	Steel	1.45 Kg
CRBHV10020AUU	Sealed	100 mm	150 mm	20 mm	Steel	1.45 Kg
CRBHV11020A	Open	110 mm	160 mm	20 mm	Steel	1.56 Kg
CRBHV11020AUU	Sealed	110 mm	160 mm	20 mm	Steel	1.56 Kg
CRBHV12025A	Open	120 mm	180 mm	25 mm	Steel	2.62 Kg
CRBHV12025AUU	Sealed	120 mm	180 mm	25 mm	Steel	2.62 Kg
CRBHV13025A	Open	130 mm	190 mm	25 mm	Steel	2.82 Kg
CRBHV13025AUU	Sealed	130 mm	190 mm	25 mm	Steel	2.82 Kg
CRBHV14025A	Open	140 mm	200 mm	25 mm	Steel	2.96 Kg
CRBHV14025AUU	Sealed	140 mm	200 mm	25 mm	Steel	2.96 Kg
CRBHV15025A	Open	150 mm	210 mm	25 mm	Steel	3.16 Kg
CRBHV15025AUU	Sealed	150 mm	210 mm	25 mm	Steel	3.16 Kg
CRBHV20025A	Open	200 mm	260 mm	25 mm	Steel	4 Kg
CRBHV20025AUU	Sealed	200 mm	260 mm	25 mm	Steel	4 Kg
CRBHV208A	Open	20 mm	36 mm	8 mm	Steel	0.04 Kg
CRBHV208AUU	Sealed	20 mm	36 mm	8 mm	Steel	0.04 Kg
CRBHV25025A	Open	250 mm	310 mm	25 mm	Steel	4.97 Kg
CRBHV25025AUU	Sealed	250 mm	310 mm	25 mm	Steel	4.97 Kg
CRBHV258A	Open	25 mm	41 mm	8 mm	Steel	0.05 Kg
CRBHV258AUU	Sealed	25 mm	41 mm	8 mm	Steel	0.05 Kg
CRBHV3010A	Open	30 mm	55 mm	10 mm	Steel	0.12 Kg
CRBHV3010AUU	Sealed	30 mm	55 mm	10 mm	Steel	0.12 Kg
CRBHV3510A	Open	35 mm	60 mm	10 mm	Steel	0.13 Kg
CRBHV3510AUU	Sealed	35 mm	60 mm	10 mm	Steel	0.13 Kg
CRBHV4010A	Open	40 mm	65 mm	10 mm	Steel	0.15 Kg
CRBHV4010AUU	Sealed	40 mm	65 mm	10 mm	Steel	0.15 Kg
CRBHV4510A	Open	45 mm	70 mm	10 mm	Steel	0.16 Kg
CRBHV4510AUU	Sealed	45 mm	70 mm	10 mm	Steel	0.16 Kg
CRBHV5013A	Open	50 mm	80 mm	13 mm	Steel	0.29 Kg
CRBHV5013AUU	Sealed	50 mm	80 mm	13 mm	Steel	0.29 Kg
CRBHV6013A	Open	60 mm	90 mm	13 mm	Steel	0.33 Kg
CRBHV6013AUU	Sealed	60 mm	90 mm	13 mm	Steel	0.33 Kg
CRBHV7013A	Open	70 mm	100 mm	13 mm	Steel	0.38 Kg
CRBHV7013AUU	Sealed	70 mm	100 mm	13 mm	Steel	0.38 Kg
CRBHV8016A	Open	80 mm	120 mm	16 mm	Steel	0.74 Kg
CRBHV8016AUU	Sealed	80 mm	120 mm	16 mm	Steel	0.74 Kg
CRBHV9016A	Open	90 mm	130 mm	16 mm	Steel	0.81 Kg
CRBHV9016AUU	Sealed	90 mm	130 mm	16 mm	Steel	0.81 Kg

RU:

This series (integrated inner and outer rings, with mounting holes) does not require fixing flanges and support seats during installation because the outer ring and inner ring have mounting holes. In addition, since the outer ring and inner ring are both integral structures, installation has almost no impact on performance, so stable rotation accuracy and torque can be obtained, which is suitable for situations where the outer ring and inner ring rotate.

Part Number	Seal Type	Bore Dia	Outer Dia	Width	Ring Material	Weight
RU124	Open	80 mm	165 mm	22 mm	Steel	2.6 Kg
RU124UU	Sealed	80 mm	165 mm	22 mm	Steel	2.6 Kg
RU148	Open	90 mm	210 mm	25 mm	Steel	4.9 Kg
RU148UU	Sealed	90 mm	210 mm	25 mm	Steel	4.9 Kg
RU178	Open	115 mm	240 mm	28 mm	Steel	6.8 Kg
RU178UU	Sealed	115 mm	240 mm	28 mm	Steel	6.8 Kg
RU228	Open	160 mm	295 mm	35 mm	Steel	11.4 Kg
RU228UU	Sealed	160 mm	295 mm	35 mm	Steel	11.4 Kg
RU297	Open	210 mm	380 mm	40 mm	Steel	21.3 Kg
RU297UU	Sealed	210 mm	380 mm	40 mm	Steel	21.3 Kg
RU42	Open	20 mm	70 mm	12 mm	Steel	0.29 Kg
RU42UU	Sealed	20 mm	70 mm	12 mm	Steel	0.31 Kg
RU445	Open	350 mm	540 mm	45 mm	Steel	35.4 Kg
RU445UU	Sealed	350 mm	540 mm	45 mm	Steel	35.4 Kg
RU66	Open	35 mm	95 mm	15 mm	Steel	0.62 Kg
RU66UU	Sealed	35 mm	95 mm	15 mm	Steel	0.62 Kg
RU85	Open	55 mm	120 mm	15 mm	Steel	1 Kg
RU85UU	Sealed	55 mm	120 mm	15 mm	Steel	1 Kg

SX:

Its structure is similar to that of the RB series. The structure is an integral inner ring and a separate outer ring. Due to the ultra-thin design, there are no mounting holes in the outer and inner rings. The flange and support base are required for installation. It is suitable for the inner ring. Applications with high rotational accuracy.

Part Number	Bore Dia	Outer Dia	Width	Height(H)	Running Accuracy Radial	Weight
SX0118/500	500 mm	620 mm	56 mm	56 mm	0.04 mm	42.7 Kg
SX011814-A	70 mm	90 mm	10 mm	10 mm	0.01 mm	0.25 Kg
SX011818-A	90 mm	115 mm	13 mm	13 mm	0.01 mm	0.354 Kg
SX011820-A	100 mm	125 mm	13 mm	13 mm	0.01 mm	0.402 Kg
SX011824-A	120 mm	150 mm	16 mm	16 mm	0.01 mm	0.698 Kg
SX011828-A	140 mm	175 mm	18 mm	18 mm	0.015 mm	1.062 Kg
SX011832-A	160 mm	200 mm	20 mm	20 mm	0.015 mm	1.581 Kg
SX011836-A	180 mm	225 mm	22 mm	22 mm	0.015 mm	2.22 Kg
SX011840-A	200 mm	250 mm	24 mm	24 mm	0.015 mm	2.957 Kg
SX011848-A	240 mm	300 mm	28 mm	28 mm	0.02 mm	4.96 Kg
SX011860	300 mm	380 mm	38 mm	38 mm	0.02 mm	11.6 Kg
SX011868	340 mm	420 mm	38 mm	38 mm	0.025 mm	12.92 Kg
SX011880	400 mm	500 mm	46 mm	46 mm	0.03 mm	23.221 Kg

Choosing the right crossed roller bearing

There are various types and sizes of crossed roller bearings. How to choose the appropriate model and structure is a problem that most customers who use crossed roller bearings are confused about. Well, we know the tips and factors to consider when choosing the right crossed roller bearing.

Structure

As a widely used bearing product, crossed roller bearings also have many types. According to the rolling element structure, crossed roller bearings can be divided into cylindrical roller bearings and tapered roller bearings. When the equipment needs to bear thrust load, Thrust bearings can be used; ball bearings are usually used when the equipment needs to run at high speed; roller bearings can be used when the equipment needs to bear radial loads.

In addition, crossed roller bearings with the same size and appearance also have a variety of structural types, including split outer ring type (RB/RA), split inner ring type (RE), and integral structure (RU/RBH). The key depends on whether the part of the bearing that is driven to rotate needs to be installed on the inner ring or the outer ring of the bearing. If the outer ring needs to rotate, the inner ring split type is used; similarly, when the inner ring needs to rotate, the outer ring split type must be used. If there are higher requirements for the rotation accuracy of the inner and outer rings of the bearing, the integral structure of the inner and outer rings is suitable. of bearings. It is also necessary to consider the arrangement of the bearings, the ease of installation and disassembly, the space allowed for the bearings, the size of the bearings and the marketability of the bearings, etc. to determine the structure of the crossed roller bearing.

Dimension

According to the required installation space of the bearing equipment, determine the required bearing size and leave sufficient space for the installation of the bearing. The overall dimensions are important parameters of crossed roller bearings. The dimensions of the bearings include the inner and outer diameters and the overall dimensions. When purchasing bearings, the size of the shaft is usually determined first, and then the bearing is selected based on the size of the shaft.

Speed

Different types of bearings have different limit speeds. The limit speed of the bearing will be affected by factors such as size, structure, type, etc. For equipment with high speed requirements, when the speed of the bearing exceeds its own limit, the bearing temperature will appear. If it is too high, the lubricant will dry up too quickly and the bearing will get stuck. Bearings lubricated with lubricating oil will have a higher limit speed.

Accuracy and clearance

The accuracy and clearance of crossed roller bearings are the core of crossed roller bearings. The positive and negative travel of the bearing can affect factors such as the rigidity, noise, life and speed of the crossed rollers. When the working clearance is negative, the fatigue life of the bearing is long, but as the negative clearance increases, the fatigue clearance decreases significantly. But it can greatly improve the rigidity of the bearing and reduce the noise of the bearing. Accuracy and clearance, the rigidity, noise, life and speed of crossed roller bearings, are all affected by the positive and negative clearance of the bearing.

Loading

When choosing which cross roller to use, you must understand whether it can withstand the load imposed by the equipment, and determine whether it is suitable based on the load-bearing capacity requirements of the equipment design and the rated load of the corresponding bearings. The load capacity of the bearing is one of the important bearing selection criteria. When the bearing needs to bear radial load, you can choose a cylindrical roller bearing, a needle roller bearing or a deep groove ball bearing; when the bearing needs to bear a smaller shaft When bearings need to bear radial loads, you can choose thrust ball bearings; when bearings need to bear larger axial loads, you can choose thrust roller bearings; when bearings need to bear both radial and axial loads, we need to choose crossed rollers bearings or tapered roller bearings.

Correct installation of crossed roller bearings

Whether the fork roller bearing is installed correctly affects accuracy, life, and performance. Therefore, the design and assembly departments must fully study the installation of bearings. It is hoped that the installation will be carried out according to the work standards. When installing bearings, you need to use the correct method and pay attention to some installation problems. The details are as follows:

Installation method

Crossed roller bearings can be divided into two categories in terms of installation methods. One is that both the inner and outer rings have mounting holes. Like a slewing bearing, its installation is relatively simple and is directly connected to the equipment through connecting bolts; the other is There are no mounting holes in the inner and outer rings, mainly through the interference fit between the bearing seat and the pressing flange and the inner diameter of the shaft and the bearing.
The installation method of the bearing varies depending on the bearing structure, fit, and conditions. Generally, because the shaft rotates mostly, the inner ring requires an interference fit. Cylindrical bore bearings are often pressed in with a press or hot-fitted. In the application scenario of the tapered hole, it is directly installed on the tapered shaft and installed with a sleeve. When installed into the shell, there is generally a lot of clearance fit and there is interference in the outer ring. It is usually pressed in with a press, or there is also a shrink fit method of installing after cooling. When dry ice is used as the coolant and shrink fit is installed, moisture in the air will condense on the surface of the bearing. Therefore, appropriate rust prevention measures are required.

Installation precautions

(1) Before installation, open the package. Generally, grease is filled directly. Oil lubrication.
(2) Instrument or high-speed bearings should be washed with clean oil to remove the anti-rust agent coated on the bearings.
(3) Crossed roller bearings that have been filled with grease can be used directly without cleaning.

Crossed roller bearing life

We know that any product has its own lifespan, and the service life of crossed roller bearings will definitely be affected by long-term rotation during use. In order to use it better and last longer, we need to find ways to increase its service life. , so how do we extend the service life of roller bearings? Next, let’s talk about how to extend the service life of roller bearings.

Factors affecting the service life of crossed roller bearings:

1. Number of rollers: When the number of rollers is small (Z=15), the fatigue life of the bearing is very low, only about 540 hours. As the number of rollers increases, the bearing load capacity and fatigue life also increase accordingly. When reaching the maximum value (Z=34), the fatigue life can be increased to about 3879 hours, an increase of about 7 times. However, the number of rollers cannot be increased without limit. At the same time, increasing the number of rollers will also increase the cost and difficulty of manufacturing and installation.

2. Influence of load size: At different speeds, the bearing fatigue life decreases with load changes. As the rotational speed increases, the influence of radial load on bearing life decreases.

3. Influence of rotational speed: Under different radial loads, the bearing fatigue life changes with the rotational speed. As the rotational speed increases, the centrifugal force and contact stress of the bearing increase, resulting in a decrease in fatigue life. At the same time, under different radial loads, the greater the load, the smaller the impact of rotation speed on fatigue life.

Crossed roller bearing life calculation formula

Since crossed roller bearings can carry radial load, axial load and moment at the same time, the equivalent dynamic load should be solved first before calculating the bearing life.

P: Equivalent dynamic load/N	d: Bearing inner diameter/mm
Fr: Radial force/N	D: Bearing outer diameter/mm
Fa: axial force/N	X: radial load coefficient
M: Moment/N·mm	Y: Axial load coefficient

The radial load factor X and axial load factor Y can be obtained from the table below.

Finally, the equivalent dynamic load obtained from the solution is substituted into the bearing life calculation formula.

L10: Basic rated life/106rev
P: Equivalent dynamic load/N
C: basic dynamic load rating/N
P: Index, for roller bearings it is 10/3. Under the premise that the bearing speed is known, the bearing life in time can be obtained.

Lh: Basic rated life in time/hour
L10: Basic rated life/106rev
n: Bearing speed/rpm

Extended service life of crossed roller bearings

First, you need to know how to properly install crossed roller bearings. When installing crossed roller bearings, correct installation methods and procedures need to be followed. It is necessary to ensure that the matching accuracy of the bearing and the mounting seat meets the requirements and install it with appropriate mounting force to avoid bearing damage caused by excessive or insufficient mounting force.

Next, it is necessary to lubricate properly during use. When using crossed roller bearings, proper lubrication is required to reduce the friction coefficient and wear of the bearings. It is necessary to select the appropriate lubricant according to different usage scenarios and working conditions, and lubricate according to the correct lubrication method and cycle. At the same time, it is necessary to avoid overloading and excessively high speeds of the crossed roller bearings. This is done to prevent the bearings from being damaged due to excessive loads and excessive speeds.

Remember to perform regular inspections and maintenance. In order to ensure the normal operation of crossed roller bearings and extend their service life, regular inspection and maintenance of the bearings is required. Regularly check the wear and lubrication status of the bearings, and lubricate and replace the bearings as necessary.