NTN Tapered Roller Bearing Cone: 390, 2 1/4 in Bore, 3.9 in OD, 0.866 in Cone Wd
The NTN Tapered Roller Bearing Cone: 390 is an inch-system tapered roller bearing cone with a 2 1/4 in bore, 3.9 in OD, and 0.866 in cone width. It features a chrome steel cage and carbon steel ring, and is…
SKU 3G-OTH-109636
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Product Description
The NTN Tapered Roller Bearing Cone: 390 is an inch-system tapered roller bearing cone with a 2 1/4 in bore, 3.9 in OD, and 0.866 in cone width. It features a chrome steel cage and carbon steel ring, and is compatible with cup manufacturer part number 394CS.
Frequently Asked Questions
What is the NTN Tapered Roller Bearing Cone 390 used for?
The NTN 390 tapered roller bearing cone is used in industrial machinery and automotive applications to support combined radial and axial loads. It is commonly found in gearboxes, conveyor systems, and heavy equipment where precise shaft alignment and high load capacity are required.
What are the specifications of the NTN 390 tapered roller bearing cone?
The NTN 390 cone has a 2 1/4 in bore, 3.9 in OD, and 0.866 in cone width. It is made with a carbon steel ring and chrome steel cage, uses inch-system measurements, and is compatible with cup part number 394CS. The bore type is tapered.
Where to buy the NTN 390 tapered roller bearing cone worldwide?
You can source the NTN 390 tapered roller 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.
How to select the correct NTN tapered roller bearing cone for an application?
To select the correct NTN cone, match the bore size (2 1/4 in for the 390), OD, and width to your shaft and housing. Ensure the cup (e.g., 394CS) is compatible. Consider load ratings and operating conditions; consult NTN specifications for exact fit.
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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.













