The INA GRAE 25‑NPP‑B (25x52x31 mm) radial insert ball bearing combines extended inner ring mounting, reliable NPP sealing, and eccentric locking into a robust insert solution. Compatible with standard self-aligning housings, ideal for industrial and agricultural use. Available immediately from simmering.pl, shipped from Lublin within 24 hours—engineered for B2B professionals demanding quality, precision, and availability.
📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24 h Delivery - Fast fulfillment for industrial clients
The INA GRAE 25‑NPP‑B is a premium radial insert ball bearing designed for industrial B2B power transmission and housing systems. With precise dimensions 25 mm bore x 52 mm outer diameter x 31 mm width, it features an eccentric collar locking mechanism and double-sided NPP seals for reliable performance under dust-laden or humid conditions.
This model includes an XL-series extended inner ring for easy shaft mounting on 25 mm shafts and delivers quiet, low-friction operation. It fits standard self-aligning housings like UCP205/UCF205, ensuring perfect alignment and extended service life.
📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24 h Delivery - Fast order fulfillment via simmering.pl
| Feature | Specification |
|---|---|
| Manufacturer | INA (Schaeffler Group) |
| Model | GRAE 25‑NPP‑B (insert series, XL ring) |
| Bearing Type | Radial Insert Ball Bearing |
| Bore Diameter (d) | 25 mm |
| Outside Diameter (D) | 52 mm |
| Width (B) | 31 mm |
| Locking Method | Eccentric collar locking |
| Seal Type | NPP - contact seals on both sides |
| Compatible Housing | UCP205, UCF205 for 25 mm shafts |
| Load Ratings | ~14 000 N dynamic, ~7 800 N static |
| Temperature Range | −20 °C to +120 °C |
Insert bearings for self-aligning housings with 25 mm shafts
Conveyor systems, pump drives, industrial fans
Agricultural machinery, motors, gearboxes
Professional automation systems demanding reliability and easy mounting
INA GRAE 25‑NPP‑B
insert ball bearing 25x52x31
eccentric collar locking
sealed insert bearing with NPP seals
XL inner ring insert for UCP205
YET205 equivalent insert bearing
1. Is GRAE 25‑NPP‑B equipped for eccentric collar locking?
Yes - it includes a robust eccentric collar designed for secure shaft fitting without modification.
2. What does “NPP” seal mean?
The NPP designation refers to contact seals on both sides, protecting the bearing from contaminants and extending lifespan.
3. Can this bearing replace RAE 25‑NPP‑B or YET205?
Yes - dimensions and mounting features are identical. GRAE and RAE are interchangeable INA series, and YET205 is a recognized equivalent.
4. What type of housing does it fit?
Designed for UCP205/UCF205 self-aligning housings on a 25 mm shaft.
5. Is the product available for immediate shipment?
Yes - stocked at our Lublin warehouse, ready for 24 h dispatch.
📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24 h Delivery - Reliable fulfillment for industrial clients
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