Manufactured by PRS Bearings, the PSI25.855 is a precision PSI25 Series Four Point Contact Ball Bearings. You may consider it as an interchangeable alternative and replacement for INA VSI250855, IMO 12-25 0855, Mijnsbergen I.955.25.00.B, Rothe Erde 062.25.0855. 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.
PSI25.855 - PSI25 Series Four Point Contact Ball Bearings
Technical Specifications
| Direct Interchange | INA VSI250855, IMO 12-25 0855, Mijnsbergen I.955.25.00.B, Rothe Erde 062.25.0855 |
|---|---|
| Overview | |
| Basic Model | PSI25.855 |
| Weight | 137 kg |
| Mounting Dimensions | |
| Outer Ring O.D. (Da) | 955 mm |
| Inner Ring I.D. (di) | 710 mm |
| Mounting Holes | |
| Outer Ring Hole Pitch Dia. (La) | 915 mm |
| Inner Ring Hole Pitch Dia. (Li) | 794 mm |
| No. of Outer Ring Holes (na) | 28 |
| No. of Inner Ring Holes (ni) | 28 |
| Gear Parameters | |
| Pitch Circle Dia. (do) | 730 mm |
| Module (m) | 10 |
| No. of Teeth (z) | 73 |
PSI25.855 955 mm 915 mm 710 mm 794 mm 28 mm 28 mm Frequently Asked Questions about PSI25.855 PSI25 Series Four Point Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The PSI25.855 utilizes high-purity bearing steel treated with PRS Bearings's advanced thermal processes. This creates a tough core that effectively absorbs shock loads while maintaining a highly wear-resistant surface on the raceways.
PRS Bearings recommends storing the PSI25.855 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.
Yes, beyond standard ISO specifications, PRS Bearings can produce the PSI25.855 with tailored radial internal clearances and ultra-precision accuracy classes to meet the strict demands of specialized OEM applications.
Every PSI25.855 batch undergoes 100% automated vibration and noise testing at the PRS Bearings factory. We guarantee compliance with Z1/V1 standards, with premium Z3/V3 options available for high-end electric motors.