Manufactured by PRS Bearings, the PAB120 is a precision PA Angular Contact Ball Series. You may consider it as an interchangeable alternative and replacement for KAYDON KB120AR0, SILVERTHIN SB120AR0. Key dimensional parameters include a 304.8 mm bore diameter, a 320.675 mm outer diameter, and a 7.938 mm overall width. With matching boundary dimensions, this component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
PAB120 - PA Angular Contact Ball Series
Technical Specifications
| Direct Interchange | KAYDON KB120AR0, SILVERTHIN SB120AR0 |
|---|---|
| Overview | |
| Basic Model | PAB120 |
| Weight | 0.376 kg |
| Dimensions | |
| Bore Dia (d, mm) | 304.8 mm |
| Bore Dia (d, in) | 12 in |
| Outer Dia (D, mm) | 320.675 mm |
| Outer Dia (D, in) | 12.625 in |
| Width (B, mm) | 7.938 mm |
| Width (B, in) | 0.3125 in |
| Load Ratings | |
| Dynamic Load (Cr) | 7,219 kN |
| Static Load (Cor) | 25,978 kN |
| Dynamic Axial Load (Ca) | 18,860 kN |
| Static Axial Load (Coa) | 74,997 kN |
| Performance | |
| Limit Speed (rpm) | 1,620 rpm |
PAB120 7.938 mm 320.675 mm 304.8 mm Frequently Asked Questions about PAB120 PA Angular Contact Ball Series
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, PRS Bearings is a leading OEM partner. We offer bulk B2B pricing for the PAB120, along with custom laser marking, specialized packaging, and technical documentation (MTR/COC) tailored to your company's requirements.
Yes, while the standard PRS Bearings PAB120 meets ISO P0 (ABEC-1) levels, PRS Bearings also manufactures high-precision variants in P6 (ABEC-3) and P5 (ABEC-5) for applications requiring minimal runout and extreme rotational accuracy.
PRS Bearings recommends storing the PAB120 in its original packaging in a clean, low-vibration warehouse. Maintaining a relative humidity below 60% and a stable room temperature ensures maximum shelf life.
Under optimal lubrication conditions, the PRS Bearings PAB120 can reach a limiting speed of 1,620 RPM. The low-friction raceway finish developed by PRS Bearings allows for cooler running temperatures even at high velocities.