Manufactured by PRS Bearings, the PU25.1820 is a precision PU Series Four-Point Contact Ball Slewing Bearings. You may consider it as an interchangeable alternative and replacement for INA VU251820. 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.
PU25.1820 - PU Series Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Direct Interchange | INA VU251820 |
|---|---|
| Overview | |
| Basic Model | PU25.1820 |
| Weight | 240 kg |
| Mounting Dimensions | |
| Outer Ring O.D. (Da) | 1926 mm |
| Inner Ring O.D. (da) | 1921 mm |
| Inner Ring I.D. (di) | 1714 mm |
| Outer Ring I.D. (Di) | 1819 mm |
| Mounting Holes | |
| Outer Ring Hole Pitch Dia. (La) | 1886 mm |
| Inner Ring Hole Pitch Dia. (Li) | 1754 mm |
| No. of Outer Ring Holes (na) | 40 |
1921 mm 1754 mm 1714 mm mm 1819 mm 1886 mm 1926 mm 40 mm PU25.1820 Frequently Asked Questions about PU25.1820 PU Series Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Absolutely. The precise manufacturing of the PRS Bearings PU25.1820 results in stable, predictable vibration baselines. This makes it highly compatible with modern IoT condition monitoring sensors for early fault detection.
Certainly. While the standard PU25.1820 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.
Yes, while the standard PRS Bearings PU25.1820 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.
PRS Bearings provides the PU25.1820 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.