NTN Tapered Roller Bearing Cone: 3977, 2 23/64 in Bore, 3.9 in OD, 1.183 in Cone Wd
The NTN 3977 is an inch-system tapered roller bearing cone with a 2 23/64 in bore, 3.9 in OD, and 1.183 in cone width. It features a chrome steel cage and carbon steel ring, and is compatible with cup manufacturer…
SKU 3G-OTH-103097
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Product Description
The NTN 3977 is an inch-system tapered roller bearing cone with a 2 23/64 in bore, 3.9 in OD, and 1.183 in cone width. It features a chrome steel cage and carbon steel ring, and is compatible with cup manufacturer part number 3920B.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the NTN 3977 tapered roller bearing cone used for?
The NTN 3977 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 heavy equipment where precise shaft alignment and high load capacity are required.
What are the specifications of the NTN 3977 bearing cone?
The NTN 3977 is an inch-system tapered roller bearing cone with a 2 23/64 in bore, 3.9 in OD, and 1.183 in cone width. It has a chrome steel cage, carbon steel ring, and tapered bore type. It is compatible with cup manufacturer part number 3920B.
Where to buy the NTN 3977 bearing cone worldwide?
3G Electric supplies the NTN 3977 tapered roller bearing cone worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to select the correct cup for the NTN 3977 cone?
To select the correct cup for the NTN 3977 cone, use the compatible cup manufacturer part number 3920B. Ensure the cup matches the inch system and the 3.9 in OD of the cone. Always verify dimensions and load ratings from NTN specifications before installation.
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Common applications for NTNNTN Products
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.













