| Part Number | SFRW3 W19 |
| System of Measurement | Inch |
| Bearing Type | Ball |
| For Load Direction | Radial |
| Construction | Single Row |
| Inner Ring Type | Extended |
| Seal Type | Open |
| Bore Dia | 0.1875" |
| Bore Dia Tolerance | -0.0003" to 0" |
| Outer Dia | 0.5" |
| Outer Dia Tolerance | -0.0003" to 0" |
| Width | 0.2273" |
| Width Tolerance | -0.005" to 0" |
| Flange Outer Dia | 0.565" |
| Flange Thickness | 0.042" |
| Inner Ring Outer Dia | 0.285" |
| Inner Ring Width | 0.2273" |
| Ring Material | 440C Stainless Steel |
| Ball Material | 440C Stainless Steel |
| Cage Material | 300 Series Stainless Steel |
| Dynamic Radial Load | 224 lbf |
| Static Radial Load | 79 lbf |
| Max Speed (X1000 rpm) | 38.7 |
| Lubrication | Required |
| Shaft Mount Type | Press Fit |
| Temperature Range | -86 to 230 °F |
| ABEC Rating | ABEC1 (Available in ABEC3/5/7) |
| Radial Clearance Trade No. | MC3 （Available in MC1/2/4/5/6) |
| Radial Clearance | 0.00008" to 0.0005" |
| RoHS | Compliant |
| REACH | Compliant |
| Ball Dia | 0.0937" |
| Ball Qty | 7 |
| Weight | 3.24 g |
SFRW3 W19 Miniature Flanged Ball Bearings with Extended Inner Ring have a lip extension on the outer ring. SFRW3 W19 bore dia is 0.1875″. Its out dia is 0.5″. SFRW3 W19 ball material is 440C Stainless Steel. Its seal type is Open. The SFRW3 W19 Miniature Flanged Ball Bearings with Extended Inner Ring can bear heavy radial loads and moderate thrust loads in both directions.
Typical applications include:
Miniature flange bearings are commonly used in industries such as food processing machinery, conveyors, material handling, belt drives in HVAC, textile machinery, baggage systems, medical processing, scanner motors, stepper motors, rotary encoders, card readers, etc.
General Selection Factors
Several factors must be considered for choosing flanged ball bearings. These factors include the ring material, design, shields and seals, cage, Annual Bearing Engineering Committee (ABEC) grade, Seals and shields are used in miniature bearings (specifically ball bearings) to retain lubricants and prevent particulate contamination from reaching critical surfaces. Seals are used where minimal light contact is offered. Seals for miniature bearings provide deterrence to particulate contamination, but increase torque and limit operating speeds. Shields are used in most applications.
Aubearing is an ISO certified Chinese bearing manufacturer and supplier. Competitive prices, 1,200,000+ SKU inventory, including internationally renowned brands such as SKF, Timken, Schaeffler (FAG, INA), NSK, KOYO, NTN, McGill, etc. Aubearing has invested in 300+ equipment, heat treatment facilities, lathes, grinders, milling machines, bearing production lines, CMMs, metallographic testers, etc. Leading Time<7 Days, MOQ=1.
Various types of ball bearings and roller bearings, size range: 1mm-2000mm. Including thin section bearings (KAYDON equivalents and 67, 68, 69 series), ceramic bearings, stainless steel bearings, deep groove ball bearings, angular contact bearings, thrust ball bearings, spherical roller bearings, cylindrical roller bearings, needle roller bearings, tapered roller bearings, precision crossed roller bearings, bushings (sleeve bearings), linear bearings, automotive wheel hub bearings and corresponding inch series.
Customization options: material (Gcr15, silicon nitride, silicon carbide, zirconium oxide, aluminum oxide, stainless steel 304, 316, 420, 440, PTFE\PEEK\nylon and other plastics), cage (brass, stamping steel, retainer), lubrication (lubricating oil, grease, high temperature resistance), clearance (C2\CN\C3\C4\C5), seal (nitrile rubber, silicone rubber, fluororubber, polypropylene rubber), shielding, etc.
