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NTN Tapered Roller Bearing Assembly: 387A/382A, 2 1/4 in Bore, 3 13/16 in OD - Tapered Roller Bearing Assemblies
NTNTapered Roller Bearing Assemblies

NTN Tapered Roller Bearing Assembly: 387A/382A, 2 1/4 in Bore, 3 13/16 in OD

The NTN Tapered Roller Bearing Assembly, model 387A/382A (MPN 4T-387A/382A), is an inch-system bearing with a 2 1/4 in bore, 3 13/16 in OD, and 0.864 in cone width. It features a pressed steel cage and carbon steel…

SKU 3G-OTH-104284

Brand
NTN
Item
Tapered Roller Bearing Assembly: 387A/382A, 2 1/4 in Bore, 3 13/16 in OD
Category
Tapered Roller Bearing Assemblies
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Technical Specifications

NTN
Manufacturer Part Number
4T-387A/382A
Bore
2 1/4 in
OD
3 13/16 in
Cone Wd
0.864 in
Cage Material
Pressed Steel
Ring Material
Carbon Steel
System of Measurement
Inch
Bearing Industry Number
387A/382A
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NTN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The NTN Tapered Roller Bearing Assembly, model 387A/382A (MPN 4T-387A/382A), is an inch-system bearing with a 2 1/4 in bore, 3 13/16 in OD, and 0.864 in cone width. It features a pressed steel cage and carbon steel rings, supplied under Bearing Industry Number 387A/382A.

Frequently Asked Questions

What is the NTN 387A/382A tapered roller bearing used for?

The NTN 387A/382A tapered roller bearing assembly handles combined radial and axial loads in industrial machinery, gearboxes, and conveyor systems. Its inch-system dimensions and pressed steel cage suit moderate-speed applications requiring reliable load distribution and alignment.

What are the specifications of the NTN 4T-387A/382A bearing?

The NTN 4T-387A/382A is an inch-system tapered roller bearing with a 2 1/4 in bore, 3 13/16 in OD, and 0.864 in cone width. It has carbon steel rings and a pressed steel cage, identified by Bearing Industry Number 387A/382A.

Where to buy the NTN 387A/382A bearing worldwide?

3G Electric supplies the NTN 387A/382A tapered roller bearing assembly to global customers. We handle full logistics, customs clearance, and delivery to your site worldwide. Contact us for pricing and lead time on this inch-system bearing.

How to install an NTN tapered roller bearing assembly?

Clean the shaft and housing thoroughly before installation. Use an interference fit for the cone on rotating shafts and press the cup into the housing squarely. Apply recommended lubricant and adjust axial clearance per manufacturer guidelines to prevent overheating.

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 assemblies. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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