Manufactured by PRS Bearings, the PAA120 is a precision PA Angular Contact Ball Series. You may consider it as an interchangeable alternative and replacement for KAYDON KA120AR0, SILVERTHIN SA120AR0. Key dimensional parameters include a 304.8 mm bore diameter, a 317.5 mm outer diameter, and a 6.35 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.
PAA120 - PA Angular Contact Ball Series
Technical Specifications
| Direct Interchange | KAYDON KA120AR0, SILVERTHIN SA120AR0 |
|---|---|
| Overview | |
| Basic Model | PAA120 |
| Weight | 0.254 kg |
| Dimensions | |
| Bore Dia (d, mm) | 304.8 mm |
| Bore Dia (d, in) | 12 in |
| Outer Dia (D, mm) | 317.5 mm |
| Outer Dia (D, in) | 12.5 in |
| Width (B, mm) | 6.35 mm |
| Width (B, in) | 0.25 in |
| Load Ratings | |
| Dynamic Load (Cr) | 5,018 kN |
| Static Load (Cor) | 19,083 kN |
| Dynamic Axial Load (Ca) | 13,211 kN |
| Static Axial Load (Coa) | 55,113 kN |
| Performance | |
| Limit Speed (rpm) | 1,630 rpm |
PAA120 6.35 mm 317.5 mm 304.8 mm Frequently Asked Questions about PAA120 PA Angular Contact Ball Series
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes. Through optimized internal geometry and precision honing, PRS Bearings minimizes the rolling friction of the PAA120. This lowers operating temperatures and power consumption, particularly when running near its 1,630 RPM threshold.
Engineered for heavy-duty endurance, the PRS Bearings PAA120 offers a dynamic load rating (Cr) of 5,018 and a static load rating (Cor) of 19,083. These ratings reflect PRS Bearings's commitment to using high-fatigue-strength materials for demanding radial and axial force environments.
The PAA120 is engineered with an optimal strength-to-mass ratio. PRS Bearings ensures that the cross-sectional distribution provides maximum structural rigidity for its 5,018 dynamic load rating without introducing excessive rotational inertia.
The PAA120 produced by PRS Bearings adheres to strict ISO standards with a bore diameter of 304.8 mm, an outer diameter of 317.5 mm, and a width of 6.35 mm. PRS Bearings utilizes advanced grinding technology to ensure a radial section wall thickness of 6.3 mm and a balanced D/d ratio of 1.04 for high-precision housing fits.