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B 0.4375 / D 0.9375WPB7T is a wide-series PTFE-lined spherical bearing with a 0.4375″ bore (B) and 0.9375″ OD (D). Body width (W) = 0.562″, inner race width (T) = 0.442″. Ball diameter = 0.781″. Flat OD (O) = 0.537″. Approximate weight: 0.080 lb.
Rated at 20,700 lb static radial load with ±10.0° misalignment angle. The 52100 bearing steel ball is precision ground, heat treated, and hard chrome plated. The alloy steel race is heat treated, oil coated, and PTFE lined for self-lubricating, maintenance-free operation. The wide-body design provides greater contact area than standard COM series bearings, improving load distribution in suspension links, control arms, and heavy pivot assemblies.
Stainless race + stainless ball: add ‘-SS’ suffix (e.g., WPB7T-SS). Stainless race + steel ball: add ‘-S’ suffix (e.g., WPB7T-S). Staking-groove variant available as WPB-TG series. Standard-width Teflon-lined equivalent is the COM-T series.
All available sizes in the WPB T Wide-Race Spherical Bearings series. Can’t find your size? Contact us for custom dimensions.
| WIDE SERIES PART NO. | B DIA. +0.0000 -0.0005 | D DIA. +0.0000 -0.0005 | W WIDTH +0.000 -0.002 | T WIDTH +0.005 -0.005 | O FLAT DIA. REF. | M CHAMFER REF. | BALL DIA. REF. | a° MIS. ANGLE REF. | STATIC RADIAL LOAD (LBS) | APPROX WEIGHT (LBS) |
|---|---|---|---|---|---|---|---|---|---|---|
| WPB4T | 0.2500 | 0.6250 | 0.437 | 0.327 | 0.300 | 0.022 | 0.531 | 15.0 | 5,500 | 0.031 |
| WPB5T | 0.3125 | 0.6875 | 0.437 | 0.317 | 0.360 | 0.032 | 0.593 | 14.0 | 9,400 | 0.035 |
| WPB6T | 0.3750 | 0.8125 | 0.500 | 0.406 | 0.466 | 0.032 | 0.687 | 8.0 | 13,700 | 0.060 |
| WPB7T | 0.4375 | 0.9375 | 0.562 | 0.442 | 0.537 | 0.032 | 0.781 | 10.0 | 20,700 | 0.080 |
| WPB8T | 0.5000 | 1.0000 | 0.625 | 0.505 | 0.607 | 0.032 | 0.875 | 9.0 | 21,400 | 0.100 |
| WPB9T | 0.5625 | 1.1250 | 0.687 | 0.536 | 0.721 | 0.032 | 1.000 | 10.0 | 26,600 | 0.135 |
| WPB10T | 0.6250 | 1.1875 | 0.750 | 0.567 | 0.752 | 0.032 | 1.062 | 12.0 | 29,000 | 0.160 |
| WPB12T | 0.7500 | 1.3750 | 0.875 | 0.630 | 0.845 | 0.044 | 1.250 | 13.0 | 37,000 | 0.240 |
| WPB14T | 0.8750 | 1.6250 | 0.875 | 0.755 | 0.995 | 0.044 | 1.375 | 6.0 | 65,200 | 0.350 |
| WPB16T | 1.0000 | 2.1250 | 1.375 | 1.005 | 1.269 | 0.044 | 1.875 | 12.0 | 104,000 | 0.970 |
Material certifications verified. Composition confirmed by spectrometer before machining begins.
100% go/no-go gauge check on all threaded sections. Zero tolerance on dimensional non-conformance.
Static and dynamic load tests run on representative samples from each production batch.
CMM verification of critical dimensions — ball diameter, bore, thread pitch, and body length.
Visual and tactile inspection for burrs, scratches, surface cracks, and plating defects.
Misalignment angle and torque measured to confirm liner performance meets specification.
Hardness tests confirm proper heat treatment on chromoly steel bodies and bearing balls.
Full traceability from raw material heat number to finished part. COC and inspection reports available.
Share your part number, required quantity, and any special material or packaging requirements. We respond within 24 hours.
The WPB7T is a wide-series, PTFE-lined spherical bearing with a 0.4375" bore and 0.9375" OD. Its wide-body design gives greater contact area than a standard COM series bearing, which improves load distribution in suspension links, control arms, and heavy pivot assemblies.
Bore (B) is 0.4375", OD (D) is 0.9375", body width (W) is 0.562", inner race width (T) is 0.442", ball diameter is 0.781", and flat OD (O) is 0.537". Approximate weight is 0.080 lb.
The WPB7T is rated at 20,700 lb static radial load with up to ±10.0° of angular misalignment.
The ball is 52100 bearing steel, precision ground, heat treated, and hard chrome plated. A stainless steel ball is available as an option.
The race is heat-treated alloy steel that is PTFE lined and oil coated, so the ball articulates against a low-friction PTFE surface instead of needing grease — this is what makes the WPB7T maintenance-free in service. Stainless steel and zinc-plated race options are also available.
Yes. Add the '-SS' suffix (e.g., WPB7T-SS) for a stainless race and stainless ball, or '-S' (e.g., WPB7T-S) for a stainless race with a standard steel ball. A staking-groove variant is available as the WPB-TG series, and the standard-width Teflon-lined equivalent is the COM-T series.
