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NTN Tapered Roller Bearing Cup: 3 17/32 in OD, 0.786 in Cup Wd, 0.786 in Overall Wd - Tapered Roller Bearing Cups
NTNTapered Roller Bearing Cups

NTN Tapered Roller Bearing Cup: 3 17/32 in OD, 0.786 in Cup Wd, 0.786 in Overall Wd

The NTN Tapered Roller Bearing Cup (SKU 3G-OTH-102138) is an inch-system cup with a 3 17/32 in outer diameter, a 0.786 in cup width, and a 0.786 in overall width. Manufactured from alloy steel, this cup has the…

SKU 3G-OTH-102138

Also listed as: 4T28520 · 4T 28520

Brand
NTN
Item
Tapered Roller Bearing Cup: 3 17/32 in OD, 0.786 in Cup Wd, 0.786 in Overall Wd
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-28520
Type
4T-28520
Cup Wd
0.786 in
Overall Wd
0.786 in
Ring Material
Alloy Steel
System of Measurement
Inch
Compatible Cone Manufacturer Part Number
28580

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-102138) is an inch-system cup with a 3 17/32 in outer diameter, a 0.786 in cup width, and a 0.786 in overall width. Manufactured from alloy steel, this cup has the manufacturer part number 4T-28520 and is compatible with cone part number 28580.

Frequently Asked Questions

What is the NTN 4T-28520 tapered roller bearing cup used for?

The NTN 4T-28520 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 28580 to form a complete bearing set for rotating shafts.

What are the specifications of the NTN 4T-28520 bearing cup?

The NTN 4T-28520 cup has a 3 17/32 in outer diameter, a 0.786 in cup width, and a 0.786 in overall width. It is made of alloy steel, uses inch-system measurements, and is compatible with cone part number 28580.

Where to buy the NTN 4T-28520 bearing cup worldwide?

3G Electric supplies the NTN 4T-28520 bearing cup worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this cup to your facility. Contact us for availability and lead time.

How to select the correct cup for an NTN 28580 cone?

To select the correct cup for an NTN 28580 cone, verify the cup part number is 4T-28520 and that the outer diameter and width match your housing dimensions. Always confirm compatibility using the manufacturer's cross-reference to ensure proper fit and load capacity.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
Inch-system tapered roller bearing cup made of alloy steel. Outside diameter 3 9/64 in, cup width 0.625 in, overall width 0.625 in. Used as outer race in tapered roller bearing assemblies to support radial and axial loads in industrial equipment such as gearboxes and conveyors. Compatible with cone part number 28137
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Inch-system tapered roller bearing cup made of alloy steel. Outside diameter 3 9/64 in, cup width 0.625 in, overall width 0.625 in. Used as outer race in tapered roller bearing assemblies to support radial and axial loads in industrial equipment such as gearboxes and conveyors. Compatible with cone part number 28137
NTN Tapered Roller Bearing Cup: 3 53/64 in OD, 0.765 in Cup Wd, 0.765 in Overall Wd, 4T-28622
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NTN Tapered Roller Bearing Cup: 3 53/64 in OD, 0.765 in Cup Wd, 0.765 in Overall Wd, 4T-28622
Inch-system tapered roller bearing cup made of alloy steel. Outer diameter 4 in, cup width 0.781 in, overall width 0.781 in. Pairs with cone part number 28985. Used in industrial machinery to support radial and axial loads
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Inch-system tapered roller bearing cup made of alloy steel. Outer diameter 4 in, cup width 0.781 in, overall width 0.781 in. Pairs with cone part number 28985. Used in industrial machinery to support radial and axial loads
NTN 4T-28919 tapered roller bearing cup, inch system, with 3 59/64 in outer diameter and 0.75 in cup width. Made from alloy steel. Designed for use with compatible cone part number 28990. Commonly used in industrial machinery and automotive drivetrains to support radial and axial loads
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NTN 4T-28919 tapered roller bearing cup, inch system, with 3 59/64 in outer diameter and 0.75 in cup width. Made from alloy steel. Designed for use with compatible cone part number 28990. Commonly used in industrial machinery and automotive drivetrains to support radial and axial loads
NTN 4T-2924 tapered roller bearing cup made from alloy steel. Inch-system cup with 3 11/32 in outer diameter, 0.812 in cup width, and 0.812 in overall width. Designed to pair with cone 2984 for use in machinery supporting radial and axial loads
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NTN 4T-2924 tapered roller bearing cup made from alloy steel. Inch-system cup with 3 11/32 in outer diameter, 0.812 in cup width, and 0.812 in overall width. Designed to pair with cone 2984 for use in machinery supporting radial and axial loads
NTN Tapered Roller Bearing Cup: 3 9/64 in OD, 0.826 in Cup Wd, 0.826 in Overall Wd, 4T-332A
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NTN Tapered Roller Bearing Cup: 3 9/64 in OD, 0.826 in Cup Wd, 0.826 in Overall Wd, 4T-332A

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Inch-system tapered roller bearing cup made from alloy steel. Outside diameter 3 1/8 in, cup width 0.625 in, overall width 0.625 in. Designed for use with compatible cone part number 17887. Supports radial and axial loads in rotating machinery such as gearboxes and drivetrains
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Inch-system tapered roller bearing cup made from alloy steel. Outside diameter 3 1/8 in, cup width 0.625 in, overall width 0.625 in. Designed for use with compatible cone part number 17887. Supports radial and axial loads in rotating machinery such as gearboxes and drivetrains
NTN 4T-42587B tapered roller bearing cup, inch system, made of alloy steel. Outside diameter 5 7/8 in, cup width 0.968 in, overall width 0.968 in. Compatible with cone part number 42375. Used in bearing assemblies to support radial and axial loads in industrial machinery such as gearboxes, conveyors, and pumps
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NTN 4T-42587B tapered roller bearing cup, inch system, made of alloy steel. Outside diameter 5 7/8 in, cup width 0.968 in, overall width 0.968 in. Compatible with cone part number 42375. Used in bearing assemblies to support radial and axial loads in industrial machinery such as gearboxes, conveyors, and pumps
NTN tapered roller bearing cup made of alloy steel. Inch-system cup with 2-7/8 in outer diameter, 0.906 in cup width, and 0.906 in overall width. Compatible with cone part number HM88547. Used as outer race in tapered roller bearing assemblies for supporting radial and axial loads in industrial equipment such as gearboxes, conveyors, and pumps
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NTN tapered roller bearing cup made of alloy steel. Inch-system cup with 2-7/8 in outer diameter, 0.906 in cup width, and 0.906 in overall width. Compatible with cone part number HM88547. Used as outer race in tapered roller bearing assemblies for supporting radial and axial loads in industrial equipment such as gearboxes, conveyors, and pumps
Inch-system tapered roller bearing cup with 4 27/64 in outside diameter and 0.937 in width. Made of alloy steel. Compatible with cone manufacturer part number 3975. Used in bearing assemblies to support radial and axial loads in rotating shaft applications
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Inch-system tapered roller bearing cup with 4 27/64 in outside diameter and 0.937 in width. Made of alloy steel. Compatible with cone manufacturer part number 3975. Used in bearing assemblies to support radial and axial loads in rotating shaft applications
Inch-system tapered roller bearing cup made from alloy steel. Outside diameter 3 3/4 in, cup width 0.875 in, overall width 0.875 in. Compatible with cone HM903249. Used as outer race in tapered roller bearing assemblies for supporting radial and axial loads in gearboxes, conveyors, and pumps
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Inch-system tapered roller bearing cup made from alloy steel. Outside diameter 3 3/4 in, cup width 0.875 in, overall width 0.875 in. Compatible with cone HM903249. Used as outer race in tapered roller bearing assemblies for supporting radial and axial loads in gearboxes, conveyors, and pumps
This NTN tapered roller bearing cup is made of alloy steel and has an inch-system design. It features a 9 3/64 in outside diameter, 1.22 in cup width, and 1.598 in overall width. The cup is intended for use in tapered roller bearing assemblies to support radial and axial loads in rotating shaft applications, such as gearboxes, conveyors, and pumps. It pairs with compatible cone part number JHM534149
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This NTN tapered roller bearing cup is made of alloy steel and has an inch-system design. It features a 9 3/64 in outside diameter, 1.22 in cup width, and 1.598 in overall width. The cup is intended for use in tapered roller bearing assemblies to support radial and axial loads in rotating shaft applications, such as gearboxes, conveyors, and pumps. It pairs with compatible cone part number JHM534149
This NTN tapered roller bearing cup is an inch-system component with an outer diameter of 8-7/8 in and a cup width of 1.313 in. Made from alloy steel, it is designed for use with compatible cone part number 46790 in assemblies that support combined radial and axial loads. Typical applications include gearboxes, conveyors, and other rotating shaft equipment
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