Manufactured by CHG Bearing, the HH949549/HH949510D is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 228.6 mm bore diameter, a 488.95 mm outer diameter, and a 254 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.

HH949549/HH949510D - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HH949549/HH949510D |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | Class 4 |
| Dimensions | |
| Bore Diameter (d) | 228.6 mm |
| Width (B) | 254 mm |
| Outer Diameter (D) | 488.95 mm |
| Bore Diameter Tolerance | 0 – +0.025 mm |
| Outside Diameter Tolerance | 0 – +0.051 mm |
| Inner Ring Chamfer | 1.6 mm |
| Outer Ring Chamfer | 7.9 mm |
| Inner Ring Assembly Width Tolerance | -0.508 – +0.711 mm |
| Outer Ring Assembly Width | 165.1 mm |
| Outer Ring Assembly Width Tolerance | -0.508 – +0.711 mm |
| Shaft Abutment Diameter | 259.4 mm |
| Housing Abutment Diameter | 346.4 mm |
| Lubrication Hole Diameter | 6 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1250 kN |
| Basic Static Load Rating C0 (kN) | 2610 kN |
| Material | |
| Mass (kg) | 58.5 kg |
| Ring Material | Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 12 mm |
| Roller Material | Bearing Steel |
HH949549/HH949510D 488.95 mm 228.6 mm 254 mm Frequently Asked Questions about HH949549/HH949510D Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies HH949549/HH949510D with a precision bore diameter (d) of 228.6 mm, an outside diameter (D) of 488.95 mm, and a nominal ring width (B) of 254 mm. This configuration yields an effective cross-sectional wall thickness of 130.2 mm and an envelope ratio (D/d) of 2.14, delivering compact rigidity for OEM machinery housings.
To match diverse operational dynamics, CHG Bearing supplies HH949549/HH949510D 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.
Yes, 100% of HH949549/HH949510D Double Row Tapered Roller Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for HH949549/HH949510D. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
