Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
NTN 4 Bolt Flange Bearing: Radial Ball, 30 mm Bore, Cast Iron, Set Screws - General Purpose Flange-Mount Ball Bearings
NTNGeneral Purpose Flange-Mount Ball Bearings

NTN 4 Bolt Flange Bearing: Radial Ball, 30 mm Bore, Cast Iron, Set Screws

The NTN 4 Bolt Flange Bearing is a general purpose flange-mount ball bearing with a 30 mm cylindrical bore, cast iron housing, and set screw locking. It uses NLGI #3 equivalent lubricant and has a mounting bolt size…

SKU 3G-OTH-121382

Brand
NTN
Item
4 Bolt Flange Bearing: Radial Ball, 30 mm Bore, Cast Iron, Set Screws
Category
General Purpose Flange-Mount Ball Bearings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

NTN
Manufacturer Part Number
UCFU-30
Type
Cast Iron, Set Screws
Bore
30 mm
Lg
108.7 mm
Wd
42.1 mm
Bore Type
Cylindrical
Lubricant Material
NLGI #3 Equivalent
Mounting Bolt Size
M10
System of Measurement
Metric
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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 30 mm cylindrical bore, cast iron housing, and set screw locking. It uses NLGI #3 equivalent lubricant and has a mounting bolt size of M10, with overall dimensions of 108.7 mm length and 42.1 mm width (MPN UCFU-30).

Frequently Asked Questions

What is the NTN 4 Bolt Flange Bearing UCFU-30 used for?

The NTN UCFU-30 is a general purpose flange-mount ball bearing used to support rotating shafts in industrial machinery, conveyors, and material handling equipment. Its 30 mm bore and cast iron housing with set screw locking provide reliable radial load support in metric applications.

What are the specifications of the NTN UCFU-30 flange bearing?

The NTN UCFU-30 has a 30 mm cylindrical bore, cast iron housing, set screw locking, and NLGI #3 equivalent lubricant. Overall dimensions are 108.7 mm length and 42.1 mm width. Mounting bolt size is M10. It is a metric, 4-bolt flange bearing for general purpose use.

Where to buy the NTN UCFU-30 flange bearing worldwide?

3G Electric supplies the NTN UCFU-30 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 metric 4-bolt flange bearing.

How to install the NTN UCFU-30 flange bearing?

Mount the NTN UCFU-30 on a flat, rigid surface using M10 bolts through the four flange holes. Align the shaft with the 30 mm bore and tighten the set screws evenly to secure the shaft. Apply moderate torque to avoid housing distortion. Lubrication is factory-applied with NLGI #3 equivalent grease.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
NTN 4 Bolt Flange Bearing: Radial Ball, 20 mm Bore, Cast Iron, Set Screws, 85.7 mm Lg, 37.3 mm Wd (MPN UCFU-20). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: M10; System of Measurement: Metric.
NTN
NTN 4 Bolt Flange Bearing: Radial Ball, 20 mm Bore, Cast Iron, Set Screws, 85.7 mm Lg, 37.3 mm Wd (MPN UCFU-20). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: M10; System of Measurement: Metric.
NTN 4 Bolt Flange Bearing: Radial Ball, 40 mm Bore, Cast Iron, Set Screws, 131 mm Lg, 54.3 mm Wd (MPN UCFU-40). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: M12; System of Measurement: Metric.
NTN
NTN 4 Bolt Flange Bearing: Radial Ball, 40 mm Bore, Cast Iron, Set Screws, 131 mm Lg, 54.3 mm Wd (MPN UCFU-40). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: M12; System of Measurement: Metric.
NTN 2 Bolt Flange Bearing: Radial Ball, 30 mm Bore, Cast Iron, Set Screws, 83 mm Lg, 42.1 mm Wd (MPN UCFLU-30). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: M10; System of Measurement: Metric.
NTN
NTN 2 Bolt Flange Bearing: Radial Ball, 30 mm Bore, Cast Iron, Set Screws, 83 mm Lg, 42.1 mm Wd (MPN UCFLU-30). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: M10; System of Measurement: Metric.
NTN 4 Bolt Flange Bearing: Radial Ball, 25 mm Bore, Cast Iron, Set Screws, 96 mm Lg, 38.9 mm Wd (MPN UCFU-25). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: M10; System of Measurement: Metric.
NTN
NTN 4 Bolt Flange Bearing: Radial Ball, 25 mm Bore, Cast Iron, Set Screws, 96 mm Lg, 38.9 mm Wd (MPN UCFU-25). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: M10; System of Measurement: Metric.
NTN 4 Bolt Flange Bearing: Radial Ball, 35 mm Bore, Cast Iron, Set Screws, 118.3 mm Lg, 46.4 mm Wd (MPN UCFU-35). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: M12; System of Measurement: Metric.
NTN
NTN 4 Bolt Flange Bearing: Radial Ball, 35 mm Bore, Cast Iron, Set Screws, 118.3 mm Lg, 46.4 mm Wd (MPN UCFU-35). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: M12; System of Measurement: Metric.
NTN 2 Bolt Flange Bearing: Radial Ball, 20 mm Bore, Cast Iron, Set Screws, 61 mm Lg, 37.3 mm Wd (MPN UCFLU-20). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: M10; System of Measurement: Metric.
NTN
NTN 2 Bolt Flange Bearing: Radial Ball, 20 mm Bore, Cast Iron, Set Screws, 61 mm Lg, 37.3 mm Wd (MPN UCFLU-20). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: M10; System of Measurement: Metric.

More from NTN

View all NTN parts →
NTN 2 Bolt Flange Bearing: Radial Ball, 1/2 in Bore, Cast Iron, Set Screws, 4 7/16 in Lg, Rhombus (MPN UCFL201-008D1). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 7/16 in; System of Measurement: Inch.
NTN
NTN 2 Bolt Flange Bearing: Radial Ball, 1/2 in Bore, Cast Iron, Set Screws, 4 7/16 in Lg, Rhombus (MPN UCFL201-008D1). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 7/16 in; System of Measurement: Inch.
NTN 4 Bolt Flange Bearing: Radial Ball, 2 15/16 in Bore, Cast Iron, Eccentric Collar, 7 7/8 in Lg (MPN UELFU-2.15/16M). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 3/4 in; System of Measurement: Inch.
NTN
NTN 4 Bolt Flange Bearing: Radial Ball, 2 15/16 in Bore, Cast Iron, Eccentric Collar, 7 7/8 in Lg (MPN UELFU-2.15/16M). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 3/4 in; System of Measurement: Inch.
NTN 2 Bolt Flange Bearing: Radial Ball, 2 in Bore, Cast Iron, Set Screws, 8 17/32 in Lg, Rhombus (MPN UCFLUX-2M). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 5/8 in; System of Measurement: Inch.
NTN
NTN 2 Bolt Flange Bearing: Radial Ball, 2 in Bore, Cast Iron, Set Screws, 8 17/32 in Lg, Rhombus (MPN UCFLUX-2M). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 5/8 in; System of Measurement: Inch.
NTN 4 Bolt Flange Bearing: Radial Ball, 1 5/8 in Bore, Cast Iron, Set Screws, 5 13/32 in Lg, Square (MPN UCFU-1.5/8M). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 1/2 in; System of Measurement: Inch.
NTN
NTN 4 Bolt Flange Bearing: Radial Ball, 1 5/8 in Bore, Cast Iron, Set Screws, 5 13/32 in Lg, Square (MPN UCFU-1.5/8M). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 1/2 in; System of Measurement: Inch.
NTN 2 Bolt Flange Bearing: Radial Ball, 1 3/8 in Bore, Cast Iron, Set Screws, 6 5/32 in Lg, Rhombus (MPN UCFLU-1.3/8M). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 1/2 in; System of Measurement: Inch.
NTN
NTN 2 Bolt Flange Bearing: Radial Ball, 1 3/8 in Bore, Cast Iron, Set Screws, 6 5/32 in Lg, Rhombus (MPN UCFLU-1.3/8M). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 1/2 in; System of Measurement: Inch.
NTN 4 Bolt Flange Bearing: Radial Ball, 3 in Bore, Cast Iron, Set Screws, 7 7/8 in Lg, 3 23/64 in Wd (MPN UCFU-3M). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 3/4 in; System of Measurement: Inch.
NTN
NTN 4 Bolt Flange Bearing: Radial Ball, 3 in Bore, Cast Iron, Set Screws, 7 7/8 in Lg, 3 23/64 in Wd (MPN UCFU-3M). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 3/4 in; System of Measurement: Inch.
NTN 2 Bolt Flange Bearing: Radial Ball, 1 3/16 in Bore, Cast Iron, Set Screws, 5 19/32 in Lg (MPN UCFLU-1.3/16MFG1). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 3/8 in; System of Measurement: Inch.
NTN
NTN 2 Bolt Flange Bearing: Radial Ball, 1 3/16 in Bore, Cast Iron, Set Screws, 5 19/32 in Lg (MPN UCFLU-1.3/16MFG1). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 3/8 in; System of Measurement: Inch.
NTN 4 Bolt Flange Bearing: Radial Ball, 1 11/16 in Bore, Cast Iron, Set Screws, 5 13/32 in Lg, 52100 (MPN UCFU-1.11/16M). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 1/2 in; System of Measurement: Inch.
NTN
NTN 4 Bolt Flange Bearing: Radial Ball, 1 11/16 in Bore, Cast Iron, Set Screws, 5 13/32 in Lg, 52100 (MPN UCFU-1.11/16M). Key specifications — Bore Type: Cylindrical; Brand: NTN; Lubricant Material: NLGI #3 Equivalent; Mounting Bolt Size: 1/2 in; System of Measurement: Inch.