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NTN 4 Bolt Flange Bearing: Radial Ball, 2 1/2 in Bore, Cast Iron, Set Screws - General Purpose Flange-Mount Ball Bearings
NTNGeneral Purpose Flange-Mount Ball Bearings

NTN 4 Bolt Flange Bearing: Radial Ball, 2 1/2 in Bore, Cast Iron, Set Screws

The NTN 4 Bolt Flange Bearing is a general purpose flange-mount ball bearing with a 2 1/2 in cylindrical bore and a cast iron housing. It features set screws for shaft locking and uses NLGI #3 equivalent lubricant…

SKU 3G-OTH-115831

Brand
NTN
Item
4 Bolt Flange Bearing: Radial Ball, 2 1/2 in Bore, Cast Iron, Set Screws
Category
General Purpose Flange-Mount Ball Bearings
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Technical Specifications

NTN
Manufacturer Part Number
UCFUX-2.1/2M
Type
Cast Iron, Set Screws, Square
Bore
2 1/2 in
Lg
7 19/32 in
Bore Type
Cylindrical
Lubricant Material
NLGI #3 Equivalent
Mounting Bolt Size
5/8 in
System of Measurement
Inch
View Full Spec Sheet

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

Product Description

The NTN 4 Bolt Flange Bearing is a general purpose flange-mount ball bearing with a 2 1/2 in cylindrical bore and a cast iron housing. It features set screws for shaft locking and uses NLGI #3 equivalent lubricant. This inch-system unit has a 5/8 in mounting bolt size and a 7 19/32 in length, identified by manufacturer part number UCFUX-2.1/2M.

Frequently Asked Questions

What is the NTN 4 Bolt Flange Bearing used for?

The NTN 4 Bolt Flange Bearing is used in industrial power transmission systems to support rotating shafts in conveyors, fans, and material handling equipment. Its cast iron housing and set-screw locking provide reliable radial load support in moderate-duty applications.

What are the specifications of the NTN UCFUX-2.1/2M flange bearing?

This NTN bearing has a 2 1/2 in cylindrical bore, cast iron housing, and set-screw shaft locking. It uses NLGI #3 equivalent lubricant, has a 5/8 in mounting bolt size, and a 7 19/32 in length. The system of measurement is inch, with manufacturer part number UCFUX-2.1/2M.

Where to buy the NTN 4 Bolt Flange Bearing worldwide?

3G Electric supplies the NTN 4 Bolt Flange Bearing worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this inch-system unit.

How to install the NTN 4 Bolt Flange Bearing?

Mount the bearing on a clean shaft, align the four bolt holes to the support structure, and tighten the 5/8 in bolts evenly. Secure the shaft by tightening the set screws against the shaft. Apply moderate torque per NTN guidelines to avoid housing distortion.

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 general purpose flange-mount ball bearings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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