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NTN 4T-394 Tapered Roller Bearing Cup, 4 21/64 in OD, 0.866 in Width - Tapered Roller Bearing Cups
NTNTapered Roller Bearing Cups

NTN 4T-394 Tapered Roller Bearing Cup, 4 21/64 in OD, 0.866 in Width

The NTN Tapered Roller Bearing Cup (SKU 3G-OTH-112017) is an inch-system cup with a 4 21/64 in outer diameter, 0.866 in cup width, and 0.866 in overall width. Made from alloy steel, this cup is designed for use with…

SKU 3G-OTH-112017

Also listed as: 4T394 · 4T 394

Brand
NTN
Item
4T-394 Tapered Roller Bearing Cup, 4 21/64 in OD, 0.866 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-394
Type
4T-394
Cup Wd
0.866 in
Overall Wd
0.866 in
Ring Material
Alloy Steel
System of Measurement
Inch
Compatible Cone Manufacturer Part Number
395S

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-112017) is an inch-system cup with a 4 21/64 in outer diameter, 0.866 in cup width, and 0.866 in overall width. Made from alloy steel, this cup is designed for use with the compatible cone manufacturer part number 395S. It is identified by manufacturer part number 4T-394.

Frequently Asked Questions

What is the NTN Tapered Roller Bearing Cup 4T-394 used for?

The NTN Tapered Roller Bearing Cup 4T-394 is used in industrial machinery to support radial and axial loads. It pairs with cone 395S to form a complete tapered roller bearing assembly, commonly applied in gearboxes, conveyors, and automotive drivetrains.

What are the specifications of the NTN Tapered Roller Bearing Cup 4T-394?

The NTN Tapered Roller Bearing Cup 4T-394 has an inch-system design with a 4 21/64 in outer diameter, 0.866 in cup width, and 0.866 in overall width. It is made from alloy steel and is compatible with cone manufacturer part number 395S.

Where to buy the NTN Tapered Roller Bearing Cup 4T-394 worldwide?

You can source the NTN Tapered Roller Bearing Cup 4T-394 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the bearing cup reaches your facility reliably.

How to select the correct NTN tapered roller bearing cup for an application?

To select the correct NTN tapered roller bearing cup, match the cup outer diameter and width to your housing dimensions, and ensure the cup part number (e.g., 4T-394) is compatible with the cone part number (e.g., 395S). Verify the system of measurement—inch or metric—and confirm the alloy steel ring material meets load 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
The NTN 4T-39412 is an inch-system tapered roller bearing cup made from alloy steel. It has an outer diameter of 4 1/8 in, a cup width of 0.625 in, and an overall width of 0.625 in. This cup is designed for use with cone part number 39250 to form a complete bearing set, supporting radial and axial loads in industrial applications such as gearboxes and conveyors
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The NTN 4T-39412 is an inch-system tapered roller bearing cup made from alloy steel. It has an outer diameter of 4 1/8 in, a cup width of 0.625 in, and an overall width of 0.625 in. This cup is designed for use with cone part number 39250 to form a complete bearing set, supporting radial and axial loads in industrial applications such as gearboxes and conveyors
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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
NTN 4T-332A tapered roller bearing cup, made of alloy steel. Cup width 0.826 in, overall width 0.826 in. Inch system. Compatible with cone part number 336. Used as outer race in tapered roller bearing assemblies for supporting radial and axial loads in industrial machinery
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NTN 4T-332A tapered roller bearing cup, made of alloy steel. Cup width 0.826 in, overall width 0.826 in. Inch system. Compatible with cone part number 336. Used as outer race in tapered roller bearing assemblies for supporting radial and axial loads in industrial machinery
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Inch-system tapered roller bearing cup made of alloy steel. Outer diameter 5 5/16 in, cup width 0.551 in, overall width 0.551 in. Designed to pair with cone JL819349 for use in bearing assemblies supporting radial and axial loads in rotating shaft applications
Tapered roller bearing cup made of alloy steel for inch-system applications. Outside diameter 3-9/16 in, cup width 1.312 in, overall width 1.312 in. Pairs with cone part number 4395 to support radial and axial loads in machinery and equipment
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Tapered roller bearing cup made of alloy steel for inch-system applications. Outside diameter 3-9/16 in, cup width 1.312 in, overall width 1.312 in. Pairs with cone part number 4395 to support radial and axial loads in machinery and equipment
NTN tapered roller bearing cup made of alloy steel. Inch-system cup with 4 3/8 in outer diameter, 0.812 in cup width, and 0.812 in overall width. Compatible with cone part number HM907643. Used as the outer race in tapered roller bearing assemblies for supporting radial and axial loads in industrial equipment such as gearboxes and conveyors
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NTN tapered roller bearing cup made of alloy steel. Inch-system cup with 4 3/8 in outer diameter, 0.812 in cup width, and 0.812 in overall width. Compatible with cone part number HM907643. Used as the outer race in tapered roller bearing assemblies for supporting radial and axial loads in industrial equipment such as gearboxes and conveyors

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