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Technical Specification 
The HM89449/HM89410 tapered roller bearing is built for heavy-duty applications, such as trucks, construction equipment, and mining machinery. With its inch-series design, it provides superior support for axial and radial loads, reducing downtime in harsh environments. Manufactured from premium alloy steel with advanced heat treatment, this bearing offers exceptional strength, wear resistance, and fatigue life. Its cone and cup are separable, allowing for convenient installation and servicing. DSBR ensures global-standard production and strict quality testing, making this bearing a trusted solution for OEM and aftermarket demands worldwide.
Technical Specification 
| Specifications | |
| Series | HM89400 |
| Cone Part Number | HM89449 |
| Cup Part Number | HM89410 |
| Design Unit | Inch |
| Cage Material | Stamped Steel |
| Related Assembly Number(s) | HM89449-90010 |
| Dimensions | |
| d - Bore | 1 7/16 in 36.513 mm |
| D - Cup Outer Diameter | 3 in 76.2 mm |
| B - Cone Width | 1.1250 in 28.575 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 | 0.14 in 3.600 mm |
| r - Cup Backface "To Clear" Radius2 | 0.130 in 3.30 mm |
| da - Cone Frontface Backing Diameter | 1.75 in 44.5 mm |
| db - Cone Backface Backing Diameter | 2.24 in 57 mm |
| Da - Cup Frontface Backing Diameter | 2.91 in 73.90 mm |
| Db - Cup Backface Backing Diameter | 2.44 in 61.98 mm |
| Ab - Cage-Cone Frontface Clearance | 0.08 in 2 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 | 6440 lbf 28600 N |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 24800 lbf 110000 N |
| C0 - Static Radial Rating | 26700 lbf 119000 N |
| Ca90- Dynamic Thrust Rating (90 million revolutions)6 | 6020 lbf 26800 N |
| Factors | |
| K - Factor7 | 1.07 |
| e - ISO Factor8 | 0.55 |
| Y - ISO Factor9 | 1.1 |
| G1 - Heat Generation Factor (Roller-Raceway) | 28.9 |
| G2 - Heat Generation Factor (Rib-Roller End) | 13.1 |
| Cg - Geometry Factor10 | 0.0883 |
.webp "M88048/M88010 Inch Tapered Roller Bearings Provide Professional High-quality Bearings for Over 70 Countries")
