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NTN Tapered Roller Bearing Cone: 645, 2 13/16 in Bore, 4.65 in OD, 1.625 in Cone Wd - Tapered Roller Bearing Cones
NTNTapered Roller Bearing Cones

NTN Tapered Roller Bearing Cone: 645, 2 13/16 in Bore, 4.65 in OD, 1.625 in Cone Wd

The NTN 645 is an inch-system tapered roller bearing cone with a tapered bore, a 2 13/16 in bore, a 4.65 in OD, and a 1.625 in cone width. It features a chrome steel cage and a carbon steel ring, and is compatible…

SKU 3G-OTH-116917

Brand
NTN
Item
Tapered Roller Bearing Cone: 645, 2 13/16 in Bore, 4.65 in OD, 1.625 in Cone Wd
Category
Tapered Roller Bearing Cones
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

NTN
Manufacturer Part Number
645
Type
645
Bore
2 13/16 in
OD
4.65 in
Cone Wd
1.625 in
Bore Type
Tapered
Cage Material
Chrome Steel
Ring Material
Carbon Steel
System of Measurement
Inch
Bearing Industry Number
645
Compatible Cup Manufacturer Part Number
632B

Technical Documents

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

Product Description

The NTN 645 is an inch-system tapered roller bearing cone with a tapered bore, a 2 13/16 in bore, a 4.65 in OD, and a 1.625 in cone width. It features a chrome steel cage and a carbon steel ring, and is compatible with cup manufacturer part number 632B.

Frequently Asked Questions

What is the NTN 645 tapered roller bearing cone used for?

The NTN 645 tapered roller bearing cone is used in industrial machinery and automotive applications that require support for combined radial and axial loads. Its inch-system design and tapered bore make it suitable for heavy-duty equipment such as gearboxes, conveyors, and axle assemblies where precise load distribution is critical.

What are the specifications of the NTN 645 bearing cone?

The NTN 645 bearing cone has a 2 13/16 in bore, a 4.65 in OD, and a 1.625 in cone width. It features a carbon steel ring, a chrome steel cage, and a tapered bore. This inch-system component is compatible with cup part number 632B and carries bearing industry number 645.

Where to buy the NTN 645 bearing cone worldwide?

You can source the NTN 645 bearing cone through 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; we supply genuine NTN components to support your operations.

How to select the correct NTN tapered roller bearing cone?

To select the correct NTN tapered roller bearing cone, verify the bore diameter, outer diameter, and cone width match your assembly requirements. Confirm the system of measurement (inch) and compatibility with the cup part number, such as 632B. Always check the cage and ring materials for your load and speed conditions.

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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