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NTN Tapered Roller Bearing Cone: 387A, 2 1/4 in Bore, 3.622 in OD, 0.864 in Cone Wd - Tapered Roller Bearing Cones
NTNTapered Roller Bearing Cones

NTN Tapered Roller Bearing Cone: 387A, 2 1/4 in Bore, 3.622 in OD, 0.864 in Cone Wd

The NTN 387A is an inch-system tapered roller bearing cone with a 2 1/4 in bore, 3.622 in OD, and 0.864 in cone width. It features an alloy steel ring and a pressed steel cage, and is compatible with cup manufacturer…

SKU 3G-OTH-105959

Brand
NTN
Item
Tapered Roller Bearing Cone: 387A, 2 1/4 in Bore, 3.622 in OD, 0.864 in Cone Wd
Category
Tapered Roller Bearing Cones
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Technical Specifications

NTN
Manufacturer Part Number
387A
Type
387A
Bore
2 1/4 in
OD
3.622 in
Cone Wd
0.864 in
Cage Material
Pressed Steel
Ring Material
Alloy Steel
System of Measurement
Inch
Bearing Industry Number
387A
Compatible Cup Manufacturer Part Number
382
View Full Spec Sheet

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NTN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The NTN 387A is an inch-system tapered roller bearing cone with a 2 1/4 in bore, 3.622 in OD, and 0.864 in cone width. It features an alloy steel ring and a pressed steel cage, and is compatible with cup manufacturer part number 382.

Frequently Asked Questions

What is the NTN 387A tapered roller bearing cone used for?

The NTN 387A is a tapered roller bearing cone designed for radial and axial load support in industrial machinery, automotive drivetrains, and heavy equipment. Its inch-system dimensions and alloy steel construction suit applications requiring precise alignment and durability under moderate to high loads.

What are the specifications of the NTN 387A bearing cone?

The NTN 387A has a 2 1/4 in bore, 3.622 in OD, and 0.864 in cone width. It features an alloy steel ring and pressed steel cage, uses inch-system measurement, and is compatible with cup part number 382. The bearing industry number is 387A.

Where to buy the NTN 387A bearing cone worldwide?

3G Electric supplies the NTN 387A 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 NTN 387A bearing cone for an application?

To select the NTN 387A, verify the bore diameter (2 1/4 in), outer diameter (3.622 in), and cone width (0.864 in) match your housing and shaft. Ensure compatibility with cup 382 and confirm load ratings meet your application's radial and thrust requirements. Consult NTN specifications for fit tolerances.

Used in

Common applications for NTN
Automotive driveline — NTN tapered roller bearing assemblies (e.g., 4T-30303) for differential and wheel hub applications
Conveyor systems — NTN 4-bolt flange bearings (e.g., UCF211-200D1) for idler rollers and take-up units
Machine tool spindles — NTN duplex angular contact bearings (e.g., ML7006CVDUJ74S) for high-speed precision rotation
Industrial fans — NTN high-temperature radial ball bearings (e.g., 6004FT150) for oven and dryer exhaust systems
Pump drives — NTN radial ball bearings (e.g., 6008LLBC3/L627) for electric motor and pump shaft support
Agricultural equipment — NTN tapered roller bearing cones (e.g., LM29748L) for gearbox and PTO shaft assemblies

NTN 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.

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