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SEALMASTER SF-28 General Purpose Flange-Mount Ball Bearing - General Purpose Flange-Mount Ball Bearings
SEALMASTERGeneral Purpose Flange-Mount Ball Bearings

SEALMASTER SF-28 General Purpose Flange-Mount Ball Bearing

The SEALMASTER 4 Bolt Flange Bearing is a general purpose flange-mount ball bearing with a 1 3/4 in cylindrical bore, cast iron housing, and set screw locking. It features a 9/16 in mounting bolt size, NLGI #2…

SKU 3G-OTH-111126

Also listed as: SF28 · SF 28

Brand
SEALMASTER
Item
SF-28 General Purpose Flange-Mount Ball Bearing
Category
General Purpose Flange-Mount Ball Bearings
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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-28
Type
Cast Iron, Set Screws
Bore
1 3/4 in
Lg
5 13/32 in
Bore Type
Cylindrical
Lubricant Material
NLGI #2 Equivalent
Mounting Bolt Size
9/16 in
System of Measurement
Inch

Technical Documents

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

Product Description

The SEALMASTER 4 Bolt Flange Bearing is a general purpose flange-mount ball bearing with a 1 3/4 in cylindrical bore, cast iron housing, and set screw locking. It features a 9/16 in mounting bolt size, NLGI #2 equivalent lubricant, and a 5 13/32 in length (MPN SF-28). This inch-system radial ball bearing is designed for industrial equipment requiring a compact, four-bolt flange mounting configuration.

Frequently Asked Questions

What is the SEALMASTER 4 Bolt Flange Bearing used for?

The SEALMASTER 4 Bolt Flange Bearing is used in industrial equipment requiring a compact, four-bolt flange mounting configuration. It supports radial loads on rotating shafts with a 1 3/4 in bore, making it suitable for conveyors, fans, and material handling systems.

What are the specifications of the SEALMASTER SF-28 flange bearing?

The SEALMASTER SF-28 is a 4 bolt flange bearing with a 1 3/4 in cylindrical bore, cast iron housing, and set screw locking. It uses NLGI #2 equivalent lubricant, has a 9/16 in mounting bolt size, and a 5 13/32 in length. It is an inch-system radial ball bearing.

Where to buy SEALMASTER flange bearings worldwide?

3G Electric supplies SEALMASTER flange bearings worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the SF-28 or other SEALMASTER models.

How to install a SEALMASTER 4 bolt flange bearing?

To install a SEALMASTER 4 bolt flange bearing, first ensure the shaft is clean and the bore is aligned. Tighten the set screws evenly to lock the bearing onto the shaft. Use 9/16 in bolts to mount the flange to a flat surface, torquing to manufacturer recommendations.

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.

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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, 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, 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, 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)

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