Manufactured by PRS Bearings, the PSU20.644 is a precision PSU20 Series Four-Point Contact Ball Slewing Bearings. You may consider it as an interchangeable alternative and replacement for INA VSU200644, SKF RKS.060.20.0644, IMO 10-200641, Mijnsbergen SD.716.20.00.B, Rothe Erde 060.20.0644, Rollix 33-0641-01. Key dimensional parameters include a mm bore diameter, a mm outer diameter, and a 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.
PSU20.644 - PSU20 Series Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Direct Interchange | INA VSU200644, SKF RKS.060.20.0644, IMO 10-200641, Mijnsbergen SD.716.20.00.B, Rothe Erde 060.20.0644, Rollix 33-0641-01 |
|---|---|
| Overview | |
| Basic Model | PSU20.644 |
| Weight | 44 kg |
| Mounting Dimensions | |
| Outer Ring O.D. (Da) | 716 mm |
| Inner Ring I.D. (di) | 572 mm |
| Mounting Holes | |
| Outer Ring Hole Pitch Dia. (La) | 690 mm |
| Inner Ring Hole Pitch Dia. (Li) | 598 mm |
| No. of Outer Ring Holes (na) | 36 |
| No. of Inner Ring Holes (ni) | 36 |
PSU20.644 716 mm 690 mm 36 mm 36 mm 572 mm 598 mm Frequently Asked Questions about PSU20.644 PSU20 Series Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
PRS Bearings provides the PSU20.644 with various cage options including high-strength pressed steel, machined brass for high-vibration tasks, or reinforced polymers for the quietest operation in precision machinery.
Yes, while the standard PRS Bearings PSU20.644 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.
Certainly. While the standard PSU20.644 is pre-filled with high-grade industrial lubricant, PRS Bearings can provide custom fills, including food-grade (NSF H1), high-temperature, or extreme-pressure greases tailored to your operational needs.
PRS Bearings recommends storing the PSU20.644 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.