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NTN 4T-L21511 Tapered Roller Bearing Cup, 1 3/8 in OD, 0.343 in Width - Tapered Roller Bearing Cups
NTNTapered Roller Bearing Cups

NTN 4T-L21511 Tapered Roller Bearing Cup, 1 3/8 in OD, 0.343 in Width

The NTN Tapered Roller Bearing Cup (SKU 3G-OTH-107246) is an inch-system cup with a 1 3/8 in OD, 0.343 in cup width, and 0.343 in overall width. Made from alloy steel, this NTN-manufactured component (part number…

SKU 3G-OTH-107246

Also listed as: 4TL21511 · 4T L21511

Brand
NTN
Item
4T-L21511 Tapered Roller Bearing Cup, 1 3/8 in OD, 0.343 in Width
Category
Tapered Roller Bearing Cups
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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-L21511
Type
4T-L21511
Cup Wd
0.343 in
Overall Wd
0.343 in
Ring Material
Alloy Steel
System of Measurement
Inch
Compatible Cone Manufacturer Part Number
L21549

Technical Documents

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

Product Description

The NTN Tapered Roller Bearing Cup (SKU 3G-OTH-107246) is an inch-system cup with a 1 3/8 in OD, 0.343 in cup width, and 0.343 in overall width. Made from alloy steel, this NTN-manufactured component (part number 4T-L21511) is designed for use with the compatible cone part number L21549.

Frequently Asked Questions

What is the NTN 4T-L21511 tapered roller bearing cup used for?

The NTN 4T-L21511 cup is used in tapered roller bearing assemblies to support radial and axial loads in industrial machinery, such as gearboxes, conveyors, and pumps. It pairs with cone L21549 to form a complete bearing set for rotating shafts.

What are the specifications of the NTN 4T-L21511 bearing cup?

The NTN 4T-L21511 cup has a 1 3/8 in outside diameter, 0.343 in cup width, and 0.343 in overall width. It is made of alloy steel, uses inch-system measurement, and is compatible with cone part number L21549.

Where to buy the NTN 4T-L21511 bearing cup worldwide?

3G Electric supplies the NTN 4T-L21511 bearing cup worldwide. As a global industrial solutions provider, we handle logistics, customs, and delivery to your location. Contact us to order this genuine NTN component for your application.

How to select the correct NTN tapered roller bearing cup?

To select the correct NTN cup, match the part number (4T-L21511) and verify the outside diameter (1 3/8 in), width (0.343 in), and compatible cone (L21549). Ensure the system of measurement (inch) and ring material (alloy steel) meet your load and speed requirements.

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

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NTN 4T-L217810 tapered roller bearing cup, inch system, with 4 7/8 in outside diameter, 0.656 in cup width, and 0.656 in overall width. Made from alloy steel. Designed as the outer race in tapered roller bearing assemblies, supporting radial and axial loads. Pairs with cone L217849
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NTN Tapered Roller Bearing Cup: 4 1/16 in OD, 0.472 in Cup Wd, 0.472 in Overall Wd, 4T-L812111
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NTN Tapered Roller Bearing Cup: 4 1/16 in OD, 0.472 in Cup Wd, 0.472 in Overall Wd, 4T-L812111
The NTN 4T-L713010 is an inch-system tapered roller bearing cup made of alloy steel. It has an outer diameter of 4 inches, a cup width of 0.593 inches, and an overall width of 0.593 inches. This cup is designed to be used with the compatible L713049 cone to form a complete tapered roller bearing assembly, supporting radial and axial loads in various machinery applications
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The NTN 4T-L713010 is an inch-system tapered roller bearing cup made of alloy steel. It has an outer diameter of 4 inches, a cup width of 0.593 inches, and an overall width of 0.593 inches. This cup is designed to be used with the compatible L713049 cone to form a complete tapered roller bearing assembly, supporting radial and axial loads in various machinery applications
NTN 544118 tapered roller bearing cup, inch-system, with 11 13/16 in outer diameter and 0.937 in cup width. Made from alloy steel, this cup is designed for use with compatible cone 544091. Typically used in heavy-duty applications such as gearboxes, conveyor systems, and axle assemblies to support radial and axial loads
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NTN 544118 tapered roller bearing cup, inch-system, with 11 13/16 in outer diameter and 0.937 in cup width. Made from alloy steel, this cup is designed for use with compatible cone 544091. Typically used in heavy-duty applications such as gearboxes, conveyor systems, and axle assemblies to support radial and axial loads

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This NTN tapered roller bearing cup is the outer race component for inch-system bearing assemblies. Made from alloy steel, it has an outside diameter of 5 11/32 inches and a cup width of 1.75 inches. It is designed to pair with cone part number 6379. Typical applications include gearboxes, conveyors, and other rotating machinery requiring radial and axial load support
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This NTN tapered roller bearing cup is the outer race component for inch-system bearing assemblies. Made from alloy steel, it has an outside diameter of 5 11/32 inches and a cup width of 1.75 inches. It is designed to pair with cone part number 6379. Typical applications include gearboxes, conveyors, and other rotating machinery requiring radial and axial load support
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Inch-system tapered roller bearing cup made of alloy steel. Outer diameter 3 3/8 in, cup width 0.937 in. Designed to pair with cone part number 3872 for supporting radial and axial loads in rotating shaft assemblies
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NTN 382 is an inch-system tapered roller bearing cup made from alloy steel. It has an outside diameter of 3 7/8 inches and a cup width of 0.701 inches. This cup is designed for use with compatible cone part number 385X to support radial and axial loads in industrial machinery such as gearboxes, conveyors, and pumps
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