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NTN 4 Bolt Flange Bearing: Radial Ball, 3 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, 3 in Bore, Cast Iron, Set Screws

The NTN 4 Bolt Flange Bearing is a general purpose flange-mount ball bearing with a 3 in cylindrical bore, cast iron housing, and set screw locking. It uses NLGI #3 equivalent lubricant, has a 3/4 in mounting bolt…

SKU 3G-OTH-120211

Brand
NTN
Item
4 Bolt Flange Bearing: Radial Ball, 3 in Bore, Cast Iron, Set Screws
Category
General Purpose Flange-Mount Ball Bearings
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Technical Specifications

NTN
Manufacturer Part Number
UCFU-3M
Type
Cast Iron, Set Screws
Bore
3 in
Lg
7 7/8 in
Wd
3 23/64 in
Bore Type
Cylindrical
Lubricant Material
NLGI #3 Equivalent
Mounting Bolt Size
3/4 in
System of Measurement
Inch
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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 3 in cylindrical bore, cast iron housing, and set screw locking. It uses NLGI #3 equivalent lubricant, has a 3/4 in mounting bolt size, and measures 7 7/8 in length by 3 23/64 in width. This inch-system unit is identified by manufacturer part number UCFU-3M.

Frequently Asked Questions

What is the NTN 4 Bolt Flange Bearing used for?

The NTN 4 Bolt Flange Bearing is a general purpose flange-mount ball bearing used to support rotating shafts in industrial machinery, conveyors, and material handling equipment. Its cast iron housing and set screw locking provide reliable radial load support in demanding environments.

What are the specifications of the NTN UCFU-3M flange bearing?

The NTN UCFU-3M has a 3 in cylindrical bore, cast iron housing with set screw locking, and uses NLGI #3 equivalent lubricant. It measures 7 7/8 in length by 3 23/64 in width, with a 3/4 in mounting bolt size. This inch-system unit is designed for general purpose radial load applications.

Where to buy the NTN UCFU-3M flange bearing worldwide?

3G Electric supplies the NTN UCFU-3M flange bearing worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this NTN general purpose flange-mount ball bearing.

How to install the NTN 4 Bolt Flange Bearing?

Mount the NTN 4 Bolt Flange Bearing on a flat surface using 3/4 in bolts through the four flange holes. Align the shaft with the 3 in cylindrical bore, tighten the set screws evenly to secure the shaft, and apply NLGI #3 equivalent grease per manufacturer recommendations for optimal performance.

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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