Manufactured by CHG Bearing, the 29388 is a precision Spherical Roller Thrust Bearings. Key dimensional parameters include a 440 mm bore diameter, a 548 mm outer diameter, and a 680 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.
29388 - Spherical Roller Thrust Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 29388 |
| Brand | CHG® |
| Construction | Single Direction |
| Characteristics | |
| Bearing Type | Spherical Roller Thrust Bearing |
| Load Direction | Axial |
| Limiting Speed — Grease (r/min) | N/A r/min |
| Limiting Speed — Oil (r/min) | 480 r/min |
| Dimensions | |
| Bore Diameter (d) | 440 mm |
| Width (B) | 680 mm |
| Outer Diameter (D) | 548 mm |
| Chamfer Dimension r (min.) | 6 mm |
| Shaft Washer Outside Diameter D1 (max.) | 655 mm |
| Dimension A | 245 mm |
| Bearing Height T | 145 mm |
| Performance | |
| Basic Dynamic Axial Load Rating Ca (kN) | 4040 kN |
| Basic Static Axial Load Rating C0a (kN) | 17370 kN |
| Material | |
| Mass (kg) | 180 kg |
29388 145 mm 245 mm 655 mm 440 mm 548 mm Frequently Asked Questions about 29388 Spherical Roller Thrust Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Quality starts with raw material selection: CHG Bearing crafts 29388 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.
To match diverse operational dynamics, CHG Bearing supplies 29388 with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
In its sealed configuration (Open Type), CHG Bearing pre-charges 29388 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies 29388 with a precision bore diameter (d) of 440 mm, an outside diameter (D) of 548 mm, and a nominal ring width (B) of 680 mm. This configuration yields an effective cross-sectional wall thickness of 54.0 mm and an envelope ratio (D/d) of 1.25, delivering compact rigidity for OEM machinery housings.
