Welcome to Linqing Xinshengdi Bearing Co., Ltd.
3490/3420 Imperial Tapered Roller Bearing
- Robust 29.37 mm Width: Provides increased roller contact length for high dynamic load capacity.
- Precision Inch Geometry: Manufactured to strict ABMA standards for guaranteed drop-in compatibility.
- Case-Hardened Toughness: Deep structural hardening prevents raceway spalling under heavy shock impacts.
- Low Operating Drag: Super-finished contact surfaces optimize energy efficiency and lower heat generation.
Technical Data
| Technical Parameter | Metric Value |
| Inner Bore Diameter (d) | 38.100 mm |
| Outer Diameter (D) | 79.375 mm |
| Total Width (T) | 29.370 mm |
| Precision Standard | ABEC-1 / P0 |
Product Specifications
| Specification | Details |
| Item Type | Standard Imperial Tapered Roller Bearing |
| Model Number | 3490/3420 (Cone: 3490 / Cup: 3420) |
| Bearing Design | Single Row Tapered |
| Material | Premium GCr15 High-Carbon Steel |
| Cage Material | Stamped Steel |
Product Introduction
The 3490/3420 is a robust inch-series tapered roller bearing measuring 38.1 x 79.375 x 29.37 mm. Combining the 3490 cone with the 3420 cup, this assembly is engineered to provide superior radial stiffness and axial thrust capacity in high-torque mechanical environments. Forged from high-grade GCr15 bearing steel and subjected to precise heat treatment, it minimizes operational friction and wear. Global B2B buyers trust the 3490/3420 for reliable performance in automotive transmission rebuilds and demanding industrial drive shaft applications.
Applications
Automotive gearboxes, differentials, and transfer cases.
Industrial heavy-duty gear reducers and conveyor pulleys.
Agricultural machinery axles and drive units.
FAQ
Q: Are the dimensions of 3490/3420 identical to NP751516/NP317439?
A: Yes, they share the exact same boundary dimensions (38.1x79.375x29.37mm), though they may feature slight variations in internal geometry or chamfers depending on the OEM application.
Q: Do you offer customized packaging for retail distribution?
A: Yes, we provide full private-label packaging and custom barcode printing for wholesale distributors.
OEM & Custom Service
Bespoke B2B solutions including customized laser etching, specific radial clearance settings, and customized export packaging.
Packing & Delivery
Protected with specialized low-viscosity rust preventatives, hermetically sealed in heavy foil bags, and secured in export master cartons.
