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Technical Specification .webp "HM88510 Inch Tapered Roller Bearings")
The HM88542/HM88510 tapered roller bearing is engineered for use in trucks, trailers, and heavy-duty industrial equipment. It provides excellent radial and axial load capacity, ensuring stability and durability under harsh conditions. Manufactured from hardened bearing steel and precision-ground for accuracy, it delivers smooth motion, reduced friction, and extended service life. The inch-series standard ensures compatibility with international machinery. The cone and cup separable design allows easy maintenance, inspection, and replacement, reducing downtime. DSBR’s advanced quality assurance system guarantees high-performance bearings that meet global OEM requirements, offering customers confidence and long-lasting reliability.
Technical Specification 
| Specifications | |
| Series | HM88500 |
| Cone Part Number | HM88542 |
| Cup Part Number | HM88510 |
| Design Unit | Inch |
| Cage Material | Stamped Steel |
| Related Assembly Number(s) | HM88542-90013 HM88542-902A1 |
| Dimensions | |
| d - Bore | 1 1/4 in 31.75 mm |
| D - Cup Outer Diameter | 2.8750 in 73.025 mm |
| B - Cone Width | 1.0938 in 27.783 mm |
| C - Cup Width | 0.9063 in 23.020 mm |
| T - Bearing Width | 1.1563 in 29.370 mm |
| Abutment and Fillet Dimensions | |
| R - Cone Backface "To Clear" Radius1 | 0.050 in 1.270 mm |
| r - Cup Backface "To Clear" Radius2 | 0.130 in 3.30 mm |
| da - Cone Frontface Backing Diameter | 1.68 in 42.6 mm |
| db - Cone Backface Backing Diameter | 1.79 in 45.5 mm |
| Da - Cup Frontface Backing Diameter | 2.80 in 71.10 mm |
| Db - Cup Backface Backing Diameter | 2.32 in 58.93 mm |
| Ab - Cage-Cone Frontface Clearance | 0.1 in 2.5 mm |
| Aa - Cage-Cone Backface Clearance | 0.06 in 1.5 mm |
| a - Effective Center Location3 | -0.22 in -5.6 mm |
| Basic Load Ratings | |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 6010 lbf 26700 N |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 23200 lbf 103000 N |
| C0 - Static Radial Rating | 24900 lbf 111000 N |
| Ca90- Dynamic Thrust Rating (90 million revolutions)6 | 5620 lbf 25000 N |
| Factors | |
| K - Factor7 | 1.07 |
| e - ISO Factor8 | 0.55 |
| Y - ISO Factor9 | 1.1 |
| G1 - Heat Generation Factor (Roller-Raceway) | 26.3 |
| G2 - Heat Generation Factor (Rib-Roller End) | 8.7 |
| Cg - Geometry Factor10 | 0.0857 |
.webp "15123/15250X Inch Tapered Roller Bearings Provide Professional High-quality Bearings for Over 70 Countries")
