NTN Tapered Roller Bearing Cone: 665A, 3 3/8 in Bore, 5.28 in OD, 1.625 in Cone Wd
The NTN 665A is a tapered roller bearing cone with a 3 3/8 in bore, 5.28 in OD, and 1.625 in cone width. It features a tapered bore type, chrome steel cage, and carbon steel ring material. This inch-system component…
SKU 3G-OTH-104378
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Product Description
The NTN 665A is a tapered roller bearing cone with a 3 3/8 in bore, 5.28 in OD, and 1.625 in cone width. It features a tapered bore type, chrome steel cage, and carbon steel ring material. This inch-system component is compatible with cup manufacturer part number 653.
Frequently Asked Questions
What is the NTN 665A tapered roller bearing cone used for?
The NTN 665A 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, conveyor systems, and heavy equipment where precise shaft alignment and high load capacity are required.
What are the specifications of the NTN 665A tapered roller bearing cone?
The NTN 665A has a 3 3/8 in bore, 5.28 in OD, and 1.625 in cone width. It features a tapered bore type, chrome steel cage, and carbon steel ring material. This inch-system component is compatible with cup part number 653 and carries bearing industry number 665A.
Where to buy the NTN 665A tapered roller bearing cone worldwide?
You can source the NTN 665A tapered roller bearing cone through 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 bearing component.
How to select the correct cup for the NTN 665A bearing cone?
To select the correct cup for the NTN 665A cone, use the compatible cup manufacturer part number 653. Ensure the cup matches the inch-system dimensions and tapered roller geometry. Always verify the cup's bore and OD against your housing and shaft specifications for proper fit and load distribution.
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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.













