NTN Tapered Roller Bearing Cone: 28678, 2 in Bore, 3.62 in OD, 0.968 in Cone Wd
The NTN Tapered Roller Bearing Cone 28678 (SKU 806A40, MPN 4T-28678) is an inch-system tapered roller bearing cone with a 2 in bore, 3.62 in OD, 0.968 in cone width, and 3.149 in inside diameter. It features a…
SKU 3G-OTH-108047
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Product Description
The NTN Tapered Roller Bearing Cone 28678 (SKU 806A40, MPN 4T-28678) is an inch-system tapered roller bearing cone with a 2 in bore, 3.62 in OD, 0.968 in cone width, and 3.149 in inside diameter. It features a tapered bore type, chrome steel cage, and carbon steel ring. This cone is compatible with cup manufacturer part number 28622.
Frequently Asked Questions
What is the NTN 28678 tapered roller bearing cone used for?
The NTN 28678 tapered roller bearing cone is used in industrial machinery and automotive drivetrains to support combined radial and axial loads. It is commonly applied in gearboxes, conveyors, and wheel hubs where precise shaft alignment and high load capacity are required.
What are the specifications of the NTN 4T-28678 bearing cone?
The NTN 4T-28678 is an inch-system tapered roller bearing cone with a 2 in bore, 3.62 in OD, 0.968 in cone width, and 3.149 in inside diameter. It has a carbon steel ring, chrome steel cage, tapered bore type, and is compatible with cup part number 28622.
Where to buy the NTN 28678 bearing cone worldwide?
You can source the NTN 28678 bearing cone from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this NTN tapered roller bearing cone.
How to select the correct cup for the NTN 28678 cone?
To select the correct cup for the NTN 28678 cone, use the compatible cup manufacturer part number 28622. Ensure the cup matches the inch-system dimensions and tapered roller design. NTN specifies this pairing for proper load distribution and bearing life. Always verify fit with the cone's 3.62 in OD.
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3G Electric supplies NTN tapered roller bearing cones. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













