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B 0.5000 / D 1.0000Die WPB8TG ist ein Breitbau-Gelenklager mit PTFE-Auskleidung und Verankerungsnut, Bohrung (B) = 0.5000″, Außendurchmesser (D) = 1.0000″. Körperbreite (W) = 0.625″, Innenlaufbahnbreite (T) = 0.505″. Kugeldurchmesser = 0.875″. Flacher Außendurchmesser (O) = 0.607″. Gewicht ca. 0.100 lb.
Nennwert 21,400 lb statische Radiallast mit ±9.0° Fehlausrichtungswinkel. Die Verankerungsnut am Außendurchmesser ermöglicht es, das Lager durch Verdrängen des Gehäusewerkstoffs in die Nut dauerhaft in der Gehäusebohrung zu sichern — in vielen Baugruppen entfallen so Seegringe oder Presssitz. Die Kugel aus 52100-Wälzlagerstahl ist präzisionsgeschliffen, vergütet und hartverchromt. Die Laufbahn aus Vergütungsstahl ist vergütet, geölt und für selbstschmierenden Betrieb mit PTFE ausgekleidet.
Edelstahl-Laufbahn + Edelstahl-Kugel: Suffix ‚-SS‘ hinzufügen (z. B. WPB8TG-SS). Edelstahl-Laufbahn + Stahlkugel: Suffix ‚-S‘ hinzufügen (z. B. WPB8TG-S). Variante ohne Nut: WPB8T (WPB-T-Baureihe). Standardbreiten-Äquivalent mit Teflon-Auskleidung: COM-T-Baureihe.
All available sizes in the WPB TG Wide-Race Staking-Groove Spherical Bearings series. Can’t find your size? Contact us for custom dimensions.
| STAKING GROOVE 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. | P +0.000 -0.015 | R +0.002 -0.005 | S MIN. | G +0.000 -0.01 | BALL DIA. REF | a° MIS. ANGLE REF. | STATIC RADIAL LOAD (LBS) | APPROX WEIGHT (LBS) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WPB4TG | 0.2500 | 0.6250 | 0.437 | 0.327 | 0.300 | 0.030 | 0.010 | 0.010 | 0.565 | 0.531 | 15.0 | 5,500 | 0.031 |
| WPB5TG | 0.3125 | 0.6875 | 0.437 | 0.317 | 0.360 | 0.030 | 0.010 | 0.010 | 0.627 | 0.593 | 14.0 | 9,400 | 0.035 |
| WPB6TG | 0.3750 | 0.8125 | 0.500 | 0.406 | 0.466 | 0.040 | 0.015 | 0.020 | 0.714 | 0.687 | 8.0 | 13,700 | 0.060 |
| WPB7TG | 0.4375 | 0.9375 | 0.562 | 0.442 | 0.537 | 0.040 | 0.015 | 0.020 | 0.839 | 0.781 | 10.0 | 20,700 | 0.080 |
| WPB8TG | 0.5000 | 1.0000 | 0.625 | 0.505 | 0.607 | 0.040 | 0.015 | 0.020 | 0.902 | 0.875 | 9.0 | 21,400 | 0.100 |
| WPB9TG | 0.5625 | 1.1250 | 0.687 | 0.536 | 0.721 | 0.040 | 0.015 | 0.020 | 1.027 | 1.000 | 10.0 | 26,600 | 0.135 |
| WPB10TG | 0.6250 | 1.1875 | 0.750 | 0.567 | 0.752 | 0.040 | 0.015 | 0.020 | 1.089 | 1.062 | 12.0 | 29,000 | 0.160 |
| WPB12TG | 0.7500 | 1.3750 | 0.875 | 0.630 | 0.845 | 0.060 | 0.015 | 0.020 | 1.253 | 1.250 | 13.0 | 37,000 | 0.240 |
| WPB14TG | 0.8750 | 1.6250 | 0.875 | 0.755 | 0.995 | 0.060 | 0.015 | 0.020 | 1.503 | 1.375 | 6.0 | 65,200 | 0.350 |
| WPB16TG | 1.0000 | 2.1250 | 1.375 | 1.005 | 1.269 | 0.060 | 0.015 | 0.020 | 2.003 | 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 WPB8TG is a wide-series, PTFE-lined spherical bearing with a staking groove on the OD, with a 0.5000" bore and 1.0000" OD — the staking groove lets it be permanently retained in a housing bore by staking the housing material into the groove, eliminating the need for snap rings or press-fit retention in many assemblies.
Bore (B) is 0.5000", OD (D) is 1.0000", body width (W) is 0.625", inner race width (T) is 0.505", ball diameter is 0.875", and flat OD (O) is 0.607" — approximate weight is 0.100 lb.
The WPB8TG is rated at 21,400 lb static radial load with up to ±9.0° of angular misalignment.
The alloy steel race is heat treated, oil coated, and PTFE lined, so the ball articulates against a low-friction PTFE surface instead of requiring grease — this is what makes the WPB8TG maintenance-free in service.
The ball is 52100 bearing steel, precision ground, heat treated, and hard chrome plated; stainless steel is optional. The race is alloy steel, heat treated, PTFE lined, and oil coated; stainless steel is optional and zinc plating is optional. For a stainless race with a stainless ball, add the '-SS' suffix (e.g., WPB8TG-SS). For a stainless race with a standard steel ball, add the '-S' suffix (e.g., WPB8TG-S).
The WPB8TG is the staking-groove version of this bore/OD size. The non-groove variant is WPB8T (WPB-T series), and the standard-width Teflon-lined equivalent is the COM-T series — choose based on whether you need the retention groove and on your width requirement.
