Uniball Suspension Mounts
Uniball cups retain a spherical bearing in a fabricated suspension or control-arm structure while allowing the bearing to articulate. Check cup fit, retaining method, bracket stiffness, and misalignment clearance.
Search by part number, series, material, application, or specification.
Press Enter to view all results Esc to close
related-product-inchUBC16W-1 is a 4130 chromoly uniball cup with 2.1250″ bore (B), 2.625″ OD (D), and 1.875″ width (W). Fits bearings: WPB16T. Includes snap ring retainer.
The UBC uniball cup is machined from 4130 chromoly steel and accepts a standard COM or WPB spherical bearing, retained by a snap ring. Weld or press the cup into a tube end or housing bore, then insert the spherical bearing to create a compact, pivoting end joint. Used in suspension link ends, panhard bars, sway bar links, and custom pivot assemblies where a welded uniball end is preferable to a threaded rod end.
Snap ring included. Mild steel cup available on request. Compatible with: WPB16T spherical bearings. FKS series chromoly bearings also compatible in matching bore sizes.

All available sizes in the UNIBALL CUPS series. Can’t find your size? Contact us for custom dimensions.
| Part Number | W | B | D | FIT BEARINGS | SNAP RING PART No. |
|---|---|---|---|---|---|
| UBC8 | 0.750 | 1.0000 | 1.250 | COM8, FKS8, COM8-SS | SR8 |
| UBC10 | 0.875 | 1.1875 | 1.500 | COM10, FKS10, COM10-SS | SR10 |
| UBC12 | 1.000 | 1.4375 | 1.750 | COM12, FKS12, COM12-SS | SR12 |
| UBC12W | 1.000 | 1.3750 | 1.750 | WPB12T | SR12W |
| UBC14W | 1.250 | 1.6250 | 2.000 | WPB14T | SR14W |
| UBC16W | 1.500 | 2.1250 | 2.625 | WPB16T | SR16W |
| UBC16W-1 | 1.875 | 2.1250 | 2.625 | WPB16T | SR16W |
| UBC16W-2 | 2.500 | 2.1250 | 2.625 | WPB16T | SR16W |
| UBC20 | 1.500 | 2.3750 | 2.875 | HCOM20 | SR20 |
| UBC24 | 1.625 | 2.7500 | 3.500 | HCOM24 | SR24 |
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 UBC16W-1 is a weld-in uniball cup with a 2.1250 in. bore, 2.625 in. OD, and 1.875 in. width, used to create a compact pivoting end joint in suspension link ends, panhard bars, sway bar links, and custom pivot assemblies where a welded uniball end is preferable to a threaded rod end.
Bore (B) is 2.1250 in., OD (D) is 2.625 in., and width (W) is 1.875 in.
The UBC16W-1 is sized to fit WPB16T spherical bearing(s). FKS series chromoly bearings are also compatible in matching bore sizes.
It's machined from 4130 chromoly steel; a mild steel cup is available on request.
Yes, a snap ring retainer is included with the UBC16W-1 (snap ring part number SR16W).
Weld or press the UBC16W-1 cup into a tube end or housing bore, then insert the matching spherical bearing (WPB16T) and secure it with the included snap ring to form the pivoting end joint.