Manufactured by CHG Bearing, the 29456 is a precision Spherical Roller Thrust Bearings. Key dimensional parameters include a 280 mm bore diameter, a 387 mm outer diameter, and a 520 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.
29456 - Spherical Roller Thrust Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 29456 |
| Brand | CHG® |
| Construction | Single Direction |
| Characteristics | |
| Bearing Type | Spherical Roller Thrust Bearing |
| Load Direction | Axial |
| Limiting Speed — Grease (r/min) | 480 r/min |
| Limiting Speed — Oil (r/min) | 630 r/min |
| Dimensions | |
| Bore Diameter (d) | 280 mm |
| Width (B) | 520 mm |
| Outer Diameter (D) | 387 mm |
| Chamfer Dimension r (min.) | 6 mm |
| Shaft Washer Outside Diameter D1 (max.) | 495 mm |
| Dimension A | 166 mm |
| Bearing Height T | 145 mm |
| Performance | |
| Basic Dynamic Axial Load Rating Ca (kN) | 3880 kN |
| Basic Static Axial Load Rating C0a (kN) | 13220 kN |
| Material | |
| Mass (kg) | 135 kg |
29456 145 mm 166 mm 495 mm 280 mm 387 mm Frequently Asked Questions about 29456 Spherical Roller Thrust Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Standard batches of CHG Bearing 29456 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
The Open Type engineered for 29456 by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
To ensure optimum performance of CHG Bearing 29456 Spherical Roller Thrust Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 280 mm bore. For the 387 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
In its sealed configuration (Open Type), CHG Bearing pre-charges 29456 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.
