Manufactured by CHG Bearing, the K-HH255149D/110 is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 279.4 mm bore diameter, a 457.2 mm outer diameter, and a 244.475 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.
K-HH255149D/110 - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | K-HH255149D/110 |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | Class 3 |
| Dimensions | |
| Bore Diameter (d) | 279.4 mm |
| Width (B) | 244.475 mm |
| Outer Diameter (D) | 457.2 mm |
| Bore Diameter Tolerance | 0 – +0.013 mm |
| Outside Diameter Tolerance | 0 – +0.025 mm |
| Inner Ring Chamfer | 1.5 min mm |
| Outer Ring Chamfer | 6.4 min mm |
| Inner Ring Assembly Width Tolerance | -0.254 – +0.076 mm |
| Outer Ring Assembly Width | 244.475 mm |
| Outer Ring Assembly Width Tolerance | -0.203 – +0.406 mm |
| Shaft Abutment Diameter | 314.2 mm |
| Housing Abutment Diameter | 406.7 mm |
| Lubrication Hole Diameter | 10 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 4100 kN |
| Basic Static Load Rating C0 (kN) | 7500 kN |
| Material | |
| Mass (kg) | 168 kg |
| Ring Material | Case-Hardened Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 20.475 mm |
| Roller Material | Bearing Steel |
K-HH255149D/110 457.2 mm 279.4 mm Frequently Asked Questions about K-HH255149D/110 Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The Open Type engineered for K-HH255149D/110 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.
When fitting K-HH255149D/110 over a 279.4 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
Absolutely. The CHG Bearing K-HH255149D/110 Double Row Tapered Roller Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF K-HH255149D/110, FAG K-HH255149D/110, NSK K-HH255149D/110. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for K-HH255149D/110. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
