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

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

The NTN 4 Bolt Flange Bearing is a general purpose flange-mount ball bearing with a 2 1/4 in cylindrical bore and a cast iron housing. It features an eccentric collar locking mechanism and is lubricated with NLGI #3…

SKU 3G-OTH-118829

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

NTN
Manufacturer Part Number
UELFU-2.1/4M
Type
Cast Iron, Eccentric Collar
Bore
2 1/4 in
Lg
6 7/8 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 1/4 in cylindrical bore and a cast iron housing. It features an eccentric collar locking mechanism and is lubricated with NLGI #3 equivalent grease. This inch-system unit has a mounting bolt size of 5/8 in and an overall length of 6 7/8 in.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

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 eccentric collar locking provide reliable radial load support in moderate-duty applications.

What are the specifications of the NTN UELFU-2.1/4M bearing?

The NTN UELFU-2.1/4M has a 2 1/4 in cylindrical bore, cast iron housing with eccentric collar locking, and a 6 7/8 in overall length. It uses NLGI #3 equivalent grease, a 5/8 in mounting bolt size, and is an inch-system unit. 3G Electric supplies this NTN bearing worldwide.

Where to buy the NTN 4 Bolt Flange Bearing worldwide?

3G Electric supplies the NTN 4 Bolt Flange Bearing to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us to order the NTN UELFU-2.1/4M or similar flange-mount bearings for your industrial application.

How to install an NTN eccentric collar flange bearing?

To install an NTN eccentric collar flange bearing, align the housing bolts with the mounting holes and tighten to the recommended torque. Slide the bearing onto the shaft, then rotate the eccentric collar in the direction of shaft rotation to lock it. Secure the collar setscrew and lubricate per NTN guidelines.

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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