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307749/10 Heavy Tapered Roller Bearing
- Extra-Wide Contact Zone: 39 mm total width accommodates longer rollers for high dynamic load capacity.
- High Rigidity: Resists shaft deflection under extreme dynamic torque and shock loading.
- Precision-Milled Raceways: Delivers smooth, quiet rotation and minimizes lubricant shear.
- Separable Cup & Cone: Simplifies press-fitting into housings and on shafts during manufacturing.
Technical Data
| Technical Parameter | Metric Value |
| Inner Bore Diameter (d) | 55.000 mm |
| Outer Diameter (D) | 110.000 mm |
| Total Width (T) | 39.000 mm |
| Precision Standard | ABEC-1 / P0 |
Product Specifications
| Specification | Details |
| Item Type | Heavy-Series Tapered Roller Bearing |
| Model Number | 307749/10 (Cone: 307749 / Cup: 307710) |
| Bearing Design | Single Row Tapered |
| Material | High-Purity GCr15 Chrome Steel |
| Cage Material | Reinforced Steel Cage |
Product Introduction
The 307749/10 is a heavy-series tapered roller bearing measuring 55 x 110 x 39 mm. Featuring an extra-wide overall width of 39 mm, this cup and cone assembly offers increased contact area and high radial load ratings compared to standard-width bearings. Manufactured from high-purity bearing steel, it is engineered to absorb heavy impact loads and maintain tight alignment in drive axles and heavy machinery, providing B2B distributors with a dependable high-performance component.
Applications
Automotive differentials and heavy axle drive shafts.
Industrial gearboxes and speed reduction drives.
Mining equipment crushers and conveyor pulleys.
FAQ
Q: Does the 39 mm width alter standard installation spacing?
A: Yes, ensure your housing bore depth is designed to accommodate the 39 mm overall assembly width.
Q: Can this bearing be supplied in matched pairs?
A: Yes, we provide pre-set matched pairs with factory-adjusted end-play upon customer request.
OEM & Custom Service
Bespoke manufacturing options available including laser etching of custom brand names, specialized greasing options, and customized inner/outer packaging designs.
Packing & Delivery
Immersed in protective slushing oil, sealed in poly VCI bags, individually boxed, and safely stacked on heat-treated wooden pallets for global export.
