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Technical Specification 
The M86649/M88610 bearing set is built for heavy-duty applications such as truck axles, construction machinery, and industrial drive systems. Its tapered roller design provides excellent handling of both axial and radial loads, ensuring smooth and stable performance under high stress. Manufactured with premium alloy steel, precision-ground raceways, and optimized roller contact, it guarantees durability and efficiency. The bearing’s separable cone and cup simplify maintenance and replacement, reducing downtime in critical operations. DSBR enforces strict quality standards during production, ensuring that each bearing offers long-lasting performance and reliability for industrial and automotive markets worldwide.
Technical Specification 
| Specifications | |
| Series | M86600 |
| Cone Part Number | M86649 |
| Cup Part Number | M86610 |
| Design Unit | Inch |
| Cage Material | Stamped Steel |
| Related Assembly Number(s) | M86649-90010 M86649-90011 M86649-90024 M86649-90025 |
| Dimensions | |
| d - Bore | 1 3/16 in 30.163 mm |
| D - Cup Outer Diameter | 2.5312 in 64.292 mm |
| B - Cone Width | 0.8438 in 21.433 mm |
| C - Cup Width | 0.6563 in 16.670 mm |
| T - Bearing Width | 0.8438 in 21.433 mm |
| Abutment and Fillet Dimensions | |
| R - Cone Backface "To Clear" Radius1 | 0.06 in 1.5 mm |
| r - Cup Backface "To Clear" Radius2 | 0.06 in 1.52 mm |
| da - Cone Frontface Backing Diameter | 1.5 in 38 mm |
| db - Cone Backface Backing Diameter | 1.73 in 44 mm |
| Da - Cup Frontface Backing Diameter | 2.40 in 60.96 mm |
| Db - Cup Backface Backing Diameter | 2.13 in 54.10 mm |
| Ab - Cage-Cone Frontface Clearance | 0.07 in 1.8 mm |
| Aa - Cage-Cone Backface Clearance | 0.03 in 0.8 mm |
| a - Effective Center Location3 | -0.13 in -3.3 mm |
| Basic Load Ratings | |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 3510 lbf 15600 N |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 13500 lbf60200 N |
| C0 - Static Radial Rating | 16100 lbf 71700 N |
| Ca90- Dynamic Thrust Rating (90 million revolutions)6 | 3280 lbf 14600 N |
| Factors | |
| K - Factor7 | 1.07 |
| e - ISO Factor8 | 0.55 |
| Y - ISO Factor9 | 1.1 |
| G1 - Heat Generation Factor (Roller-Raceway) | 16.8 |
| G2 - Heat Generation Factor (Rib-Roller End) | 9.36 |
| Cg - Geometry Factor10 | 0.0736 |
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