Manufactured by CHG Bearing, the 81252 is a precision Cylindrical Roller Thrust Bearings. Key dimensional parameters include a 260 mm bore diameter, a 360 mm outer diameter, and a mm overall width. 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.
81252 - Cylindrical Roller Thrust Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 81252 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Cylindrical Roller Thrust Bearing |
| Design Type | Single Direction |
| Load Direction | Axial |
| Dimensions | |
| Bore Diameter (d) | 260 mm |
| Outer Diameter (D) | 360 mm |
| Minimum Chamfer Dimension rmin | 2.1 mm |
| Overall Height H | 79 mm |
| Inner-Ring Land Diameter (L1 / d1) | 264 mm |
| Outer-Ring Land Diameter (L2 / D1) | 355 mm |
| Performance | |
| Limiting Speed – Grease (r/min) | 280 r/min |
| Limiting Speed – Oil-air (r/min) | 380 r/min |
| Basic Static Axial Load Rating C0a (N) | 4770 N |
| Basic Dynamic Axial Load Rating Ca (N) | 1026 N |
| Material | |
| Mass (kg) | 24 kg |
81252 360 mm 355 mm 260 mm 264 mm Frequently Asked Questions about 81252 Cylindrical Roller Thrust Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
For international ocean and air freight, CHG Bearing packs 81252 with industrial VCI anti-corrosion barrier wrapping, sealed polybags, individual cartons, and fumigated ocean-worthy wooden crates. This multi-layer barrier guarantees rust-free storage for a minimum shelf life of 24 to 36 months.
Quality starts with raw material selection: CHG Bearing crafts 81252 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
In its sealed configuration (Open Type), CHG Bearing pre-charges 81252 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
As standard production, CHG Bearing subjects 81252 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
