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NTN 4T-M903345 Tapered Roller Bearing Cone - Tapered Roller Bearing Cones
NTNTapered Roller Bearing Cones

NTN 4T-M903345 Tapered Roller Bearing Cone

The NTN M903345 is an inch-system tapered roller bearing cone with a 1 5/8 in tapered bore, 3.46 in OD, and 0.937 in cone width. It features a carbon steel ring and chrome steel cage, and is compatible with cup part…

SKU 3G-OTH-110302

Also listed as: 4TM903345 · 4T M903345

Brand
NTN
Item
4T-M903345 Tapered Roller Bearing Cone
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
4T-M903345
Type
4T-M903345
Bore
1 5/8 in
OD
3.46 in
Cone Wd
0.937 in
Bore Type
Tapered
Cage Material
Chrome Steel
Ring Material
Carbon Steel
System of Measurement
Inch
Bearing Industry Number
M903345
Compatible Cup Manufacturer Part Number
M903310

Technical Documents

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

Product Description

The NTN M903345 is an inch-system tapered roller bearing cone with a 1 5/8 in tapered bore, 3.46 in OD, and 0.937 in cone width. It features a carbon steel ring and chrome steel cage, and is compatible with cup part number M903310.

Frequently Asked Questions

What is the NTN M903345 tapered roller bearing cone used for?

The NTN M903345 is a tapered roller bearing cone designed for inch-system applications requiring radial and axial load support. It is commonly used in industrial machinery, automotive drivetrains, and material handling equipment. 3G Electric supplies this NTN component globally, supporting maintenance and production across 14 industrial departments.

What are the specifications of the NTN M903345 bearing cone?

The NTN M903345 has a 1 5/8 in tapered bore, 3.46 in OD, and 0.937 in cone width. It features a carbon steel ring and chrome steel cage, with a compatible cup part number M903310. This inch-system cone is manufactured by NTN under part number 4T-M903345.

Where to buy the NTN M903345 bearing cone worldwide?

3G Electric supplies the NTN M903345 tapered roller bearing cone to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance for international delivery. Contact us to source this NTN component for your application.

How to select the correct cup for the NTN M903345 cone?

To select the correct cup for the NTN M903345 cone, use the compatible cup manufacturer part number M903310. Ensure the cup matches the inch-system dimensions and tapered design. 3G Electric can help verify compatibility and source the matching NTN cup for your assembly.

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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Inch-system tapered roller bearing cone with 1-7/8 in bore, 3.35 in OD, and 1 in cone width. Chrome steel cage and carbon steel ring. Compatible cup M804010. Used in industrial machinery and automotive drivetrains to support combined radial and axial loads
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Inch-system tapered roller bearing cone with 1-1/4 in tapered bore, 2.28 in outside diameter, and 0.875 in cone width. Chrome steel cage and carbon steel ring. Pairs with cup M88010 for use in rotating shaft assemblies handling combined radial and axial loads
This NTN tapered roller bearing cone is an inch-system component with a 1 in bore, 1.95 in outer diameter, and 0.91 in cone width. It features a carbon steel ring and a chrome steel cage, with a tapered bore type and an inside diameter of 1.652 in. Designed to pair with cup M84210, it supports combined radial and axial loads in rotating shaft assemblies
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This NTN tapered roller bearing cone is an inch-system component with a 1 in bore, 1.95 in outer diameter, and 0.91 in cone width. It features a carbon steel ring and a chrome steel cage, with a tapered bore type and an inside diameter of 1.652 in. Designed to pair with cup M84210, it supports combined radial and axial loads in rotating shaft assemblies
Inch-system tapered roller bearing cone with 7/8 in bore, 1.73 in OD, and 0.72 in cone width. Carbon steel ring and chrome steel cage. Compatible with cup M12610. Used in gearboxes, conveyors, and drivetrains to support combined radial and axial loads
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Inch-system tapered roller bearing cone with 7/8 in bore, 1.73 in OD, and 0.72 in cone width. Carbon steel ring and chrome steel cage. Compatible with cup M12610. Used in gearboxes, conveyors, and drivetrains to support combined radial and axial loads

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Inch-system tapered roller bearing cone with 2 5/8 in bore, 4.567 in OD, and 1.51 in cone width. Constructed with alloy steel ring and pressed steel cage. Compatible with cup HM212010. Used in applications requiring combined radial and axial load support, such as gearboxes and conveyor systems
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This NTN tapered roller bearing cone is made of carbon steel and designed for inch-system applications. It has a 7 15/32 in bore, 9.53 in OD, and 1.732 in cone width. The cone is used in heavy-duty industrial applications such as gearboxes, conveyors, and mining equipment, and requires pairing with the compatible JM738210 cup
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