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NTN Tapered Roller Bearing Cone: 681A, 3 5/8 in Bore, 5.87 in OD, 1.625 in Cone Wd - Tapered Roller Bearing Cones
NTNTapered Roller Bearing Cones

NTN Tapered Roller Bearing Cone: 681A, 3 5/8 in Bore, 5.87 in OD, 1.625 in Cone Wd

The NTN 681A is a tapered roller bearing cone with a 3 5/8 in bore, 5.87 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-116910

Also listed as: 681 A · 681-A

Brand
NTN
Item
Tapered Roller Bearing Cone: 681A, 3 5/8 in Bore, 5.87 in OD, 1.625 in Cone Wd
Category
Tapered Roller Bearing Cones
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

NTN
Manufacturer Part Number
681A
Type
681A
Bore
3 5/8 in
OD
5.87 in
Cone Wd
1.625 in
Bore Type
Tapered
Cage Material
Chrome Steel
Ring Material
Carbon Steel
System of Measurement
Inch
Bearing Industry Number
681A
Compatible Cup Manufacturer Part Number
672

Technical Documents

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

Product Description

The NTN 681A is a tapered roller bearing cone with a 3 5/8 in bore, 5.87 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 672.

Frequently Asked Questions

What is the NTN 681A tapered roller bearing cone used for?

The NTN 681A tapered roller bearing cone is used in industrial machinery and automotive drivetrains to support 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 681A bearing cone?

The NTN 681A has a 3 5/8 in bore, 5.87 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 672 and carries bearing industry number 681A.

Where to buy the NTN 681A bearing cone worldwide?

You can source the NTN 681A 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 on this NTN component.

How to select the correct NTN tapered roller bearing cone?

To select the correct NTN cone, match the bore size (3 5/8 in), OD (5.87 in), and cone width (1.625 in) to your shaft and housing dimensions. Verify the system of measurement (inch) and compatibility with cup part number 672. Consult NTN's catalog for load ratings and speed limits.

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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