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

SEALMASTER SF-20R General Purpose Flange-Mount Ball Bearing - General Purpose Flange-Mount Ball Bearings
SEALMASTERGeneral Purpose Flange-Mount Ball Bearings

SEALMASTER SF-20R General Purpose Flange-Mount Ball Bearing

The SEALMASTER 4 Bolt Flange Bearing: Radial Ball (SKU SF-20R, MPN SF-20R) is a general purpose flange-mount ball bearing with a 1 1/4 in cylindrical bore and a cast iron housing. It features set screws for shaft…

SKU 3G-OTH-107509

Also listed as: SF20R · SF 20R

Brand
SEALMASTER
Item
SF-20R General Purpose Flange-Mount Ball Bearing
Category
General Purpose Flange-Mount Ball Bearings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

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

SEALMASTER
Manufacturer Part Number
SF-20R
Type
Cast Iron, Set Screws
Bore
1 1/4 in
Lg
4 1/4 in
Bore Type
Cylindrical
Lubricant Material
NLGI #2 Equivalent
Mounting Bolt Size
7/16 in
System of Measurement
Inch

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

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

Product Description

The SEALMASTER 4 Bolt Flange Bearing: Radial Ball (SKU SF-20R, MPN SF-20R) is a general purpose flange-mount ball bearing with a 1 1/4 in cylindrical bore and a cast iron housing. It features set screws for shaft locking, uses NLGI #2 Equivalent lubricant, and has a 7/16 in mounting bolt size in the inch system of measurement.

Frequently Asked Questions

What is the SEALMASTER 4 Bolt Flange Bearing used for?

The SEALMASTER 4 Bolt Flange Bearing is a general purpose flange-mount ball bearing used in industrial equipment such as conveyors, fans, and material handling systems. It supports rotating shafts and accommodates misalignment in applications requiring a compact, rigid mounting solution.

What are the specifications of the SEALMASTER SF-20R flange bearing?

The SEALMASTER SF-20R is a 4 bolt flange bearing with a 1 1/4 in cylindrical bore, cast iron housing, and set screw shaft locking. It uses NLGI #2 Equivalent lubricant, has a 7/16 in mounting bolt size, and follows the inch system of measurement.

Where to buy SEALMASTER SF-20R flange bearings worldwide?

3G Electric supplies the SEALMASTER SF-20R flange bearing worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install a SEALMASTER 4 bolt flange bearing?

To install the SEALMASTER flange bearing, first ensure the shaft is clean and free of burrs. Slide the bearing onto the shaft, align the flange bolt holes with the mounting surface, and tighten the 7/16 in bolts evenly. Secure the shaft by tightening the set screws against the shaft.

Used in

Common applications for SEALMASTER
Conveyor systems — SEALMASTER NP series pillow block bearings for belt conveyor idler shafts
Material handling fans — SEALMASTER SFT series flange bearings for fan housing mounting
Pump drives — SEALMASTER MP series medium-duty pillow blocks for pump shaft support
Agricultural equipment — SEALMASTER ER series insert bearings in auger and elevator assemblies
Packaging machinery — SEALMASTER NPL low-base pillow blocks for compact conveyor sections
Industrial blowers — SEALMASTER SFT-23 flange bearing for blower shaft end support

SEALMASTER Products

3G Electric supplies SEALMASTER 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 1 3/16 in Bore, Cast Iron, Set Screws, 4 1/4 in Lg (MPN SF-19)
SEALMASTER
SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 1 3/16 in Bore, Cast Iron, Set Screws, 4 1/4 in Lg (MPN SF-19)
SEALMASTER Pillow Block Bearing: 1 1/4 in Bore, Cast Iron, Set Screws, 1 7/8 in Shaft Ht, NP-20
SEALMASTER
SEALMASTER Pillow Block Bearing: 1 1/4 in Bore, Cast Iron, Set Screws, 1 7/8 in Shaft Ht, NP-20
SEALMASTER Pillow Block Bearing: 4 in Bore, Cast Iron, Set Screws, 5 in Shaft Ht, 17 in Overall Lg (MPN MP-64)
SEALMASTER
SEALMASTER Pillow Block Bearing: 4 in Bore, Cast Iron, Set Screws, 5 in Shaft Ht, 17 in Overall Lg (MPN MP-64)
Sleeve Bearing: Bronze, SAE 841, 2 in Bore, 2 1/4 in OD, 2 in Lg, 50,000 lb/sq in-fpm Max PV (MPN AA2203-B)
OILITE
Sleeve Bearing: Bronze, SAE 841, 2 in Bore, 2 1/4 in OD, 2 in Lg, 50,000 lb/sq in-fpm Max PV (MPN AA2203-B)
Sleeve Bearing: Bronze, SAE 841, 28 mm Bore, 36 mm OD, 40 mm Lg, 49,938 lb/sq in-fpm Max PV, 2 PK (MPN AAM2836-40B)
OILITE
Sleeve Bearing: Bronze, SAE 841, 28 mm Bore, 36 mm OD, 40 mm Lg, 49,938 lb/sq in-fpm Max PV, 2 PK (MPN AAM2836-40B)
Sleeve Bearing: Bronze, SAE 841, 4 mm Bore, 7 mm OD, 8 mm Lg, 49,938 lb/sq in-fpm Max PV, 10 PK (MPN AAM0407-08B)
OILITE
Sleeve Bearing: Bronze, SAE 841, 4 mm Bore, 7 mm OD, 8 mm Lg, 49,938 lb/sq in-fpm Max PV, 10 PK (MPN AAM0407-08B)

More from SEALMASTER

View all SEALMASTER parts
Cast iron 4-bolt flange bearing with 1 5/8 in cylindrical bore. Set screws lock shaft; lubricated with NLGI #2 equivalent grease. Overall length 5 13/32 in, mounting bolt size 9/16 in. Suitable for moderate-load, moderate-speed applications such as conveyors, fans, and material handling equipment
SEALMASTER
Cast iron 4-bolt flange bearing with 1 5/8 in cylindrical bore. Set screws lock shaft; lubricated with NLGI #2 equivalent grease. Overall length 5 13/32 in, mounting bolt size 9/16 in. Suitable for moderate-load, moderate-speed applications such as conveyors, fans, and material handling equipment
Cast iron 4-bolt flange-mount ball bearing with a 2 1/8 in cylindrical bore and set screw locking. Lubricated with NLGI #2 equivalent grease, designed for inch-dimension shafts. Used in power transmission systems such as conveyors, fans, and material handling equipment to support rotating shafts under radial loads
SEALMASTER
Cast iron 4-bolt flange-mount ball bearing with a 2 1/8 in cylindrical bore and set screw locking. Lubricated with NLGI #2 equivalent grease, designed for inch-dimension shafts. Used in power transmission systems such as conveyors, fans, and material handling equipment to support rotating shafts under radial loads
Square 4-bolt flange-mount ball bearing with 3 in cylindrical bore, cast iron housing, and set screw locking. Lubricated with NLGI #2 equivalent grease. Requires 11/16 in mounting bolts. Supports rotating shafts in conveyors, fans, and material handling equipment
SEALMASTER
Square 4-bolt flange-mount ball bearing with 3 in cylindrical bore, cast iron housing, and set screw locking. Lubricated with NLGI #2 equivalent grease. Requires 11/16 in mounting bolts. Supports rotating shafts in conveyors, fans, and material handling equipment
Two-bolt flange-mount ball bearing with a 1 3/4 in cylindrical bore, cast iron housing, and set screw locking. Designed for inch-system radial load applications in conveyors, fans, and material handling equipment. Uses NLGI #2 equivalent lubricant and mounts with 1/2 in bolts
SEALMASTER
Two-bolt flange-mount ball bearing with a 1 3/4 in cylindrical bore, cast iron housing, and set screw locking. Designed for inch-system radial load applications in conveyors, fans, and material handling equipment. Uses NLGI #2 equivalent lubricant and mounts with 1/2 in bolts
Cast iron two-bolt flange unit with a 1 15/16 in cylindrical bore and set screw locking. Lubricated with NLGI #2 equivalent grease, requiring a 1/2 in mounting bolt. Suitable for supporting rotating shafts in conveyors, fans, and material handling systems
SEALMASTER
Cast iron two-bolt flange unit with a 1 15/16 in cylindrical bore and set screw locking. Lubricated with NLGI #2 equivalent grease, requiring a 1/2 in mounting bolt. Suitable for supporting rotating shafts in conveyors, fans, and material handling systems
This SEALMASTER flange-mount ball bearing features a 2 11/16 in cylindrical bore, cast iron housing, and set screw locking. It has a mounting bolt size of 11/16 in, overall length of 7 19/32 in, and is lubricated with NLGI #2 Equivalent grease. Suitable for supporting rotating shafts in moderate-duty applications such as conveyors and material handling equipment
SEALMASTER
This SEALMASTER flange-mount ball bearing features a 2 11/16 in cylindrical bore, cast iron housing, and set screw locking. It has a mounting bolt size of 11/16 in, overall length of 7 19/32 in, and is lubricated with NLGI #2 Equivalent grease. Suitable for supporting rotating shafts in moderate-duty applications such as conveyors and material handling equipment
Cast iron 4-bolt flange bearing with a 2 7/16 in cylindrical bore and set-screw shaft locking. Lubricated with NLGI #2 equivalent grease. Supports rotating shafts in conveyors, fans, and material handling equipment under moderate-speed, moderate-load conditions
SEALMASTER
Cast iron 4-bolt flange bearing with a 2 7/16 in cylindrical bore and set-screw shaft locking. Lubricated with NLGI #2 equivalent grease. Supports rotating shafts in conveyors, fans, and material handling equipment under moderate-speed, moderate-load conditions
Cast iron 4-bolt flange bearing with a 3 1/4 in cylindrical bore and set screw locking. Length is 8 7/16 in, uses NLGI #2 Equivalent lubricant, and requires a 3/4 in mounting bolt. Designed for inch-system applications such as conveyors, fans, and material handling systems
SEALMASTER
Cast iron 4-bolt flange bearing with a 3 1/4 in cylindrical bore and set screw locking. Length is 8 7/16 in, uses NLGI #2 Equivalent lubricant, and requires a 3/4 in mounting bolt. Designed for inch-system applications such as conveyors, fans, and material handling systems