Manufactured by PRS Bearings, the PAD120 is a precision PA Angular Contact Ball Series. You may consider it as an interchangeable alternative and replacement for KAYDON KD120AR0, SILVERTHIN SD120AR0. Key dimensional parameters include a 304.8 mm bore diameter, a 330.2 mm outer diameter, and a 12.7 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.
PAD120 - PA Angular Contact Ball Series
Technical Specifications
| Direct Interchange | KAYDON KD120AR0, SILVERTHIN SD120AR0 |
|---|---|
| Overview | |
| Basic Model | PAD120 |
| Weight | 1.021 kg |
| Dimensions | |
| Bore Dia (d, mm) | 304.8 mm |
| Bore Dia (d, in) | 12 in |
| Outer Dia (D, mm) | 330.2 mm |
| Outer Dia (D, in) | 13 in |
| Width (B, mm) | 12.7 mm |
| Width (B, in) | 0.5 in |
| Load Ratings | |
| Dynamic Load (Cr) | 14,626 kN |
| Static Load (Cor) | 43,904 kN |
| Dynamic Axial Load (Ca) | 376,409 kN |
| Static Axial Load (Coa) | 126,774 kN |
| Performance | |
| Limit Speed (rpm) | 1,600 rpm |
PAD120 12.7 mm 330.2 mm 304.8 mm Frequently Asked Questions about PAD120 PA Angular Contact Ball Series
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Thanks to its robust 14,626 dynamic load capacity, the PRS Bearings PAD120 is highly sought after in mining, metallurgy, agricultural machinery, and heavy industrial gearboxes where operational reliability is paramount.
Under optimal lubrication conditions, the PRS Bearings PAD120 can reach a limiting speed of 1,600 RPM. The low-friction raceway finish developed by PRS Bearings allows for cooler running temperatures even at high velocities.
The PRS Bearings PAD120 features precision-machined corner chamfers designed to facilitate easier mounting. These ISO-standard chamfers ensure that the PA Angular Contact Ball Series fits snugly against shaft shoulders, preventing stress concentration at the 304.8 mm bore interface.
To maximize the performance of the PAD120, PRS Bearings technical engineers suggest a shaft fit of k5/m5 for its 304.8 mm bore. For the 330.2 mm outer diameter, an H7 or J7 housing tolerance is ideal to accommodate thermal expansion while maintaining PRS Bearings's signature operational stability.