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SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 1 15/16 in Bore, Cast Iron - General Purpose Flange-Mount Ball Bearings
SEALMASTERGeneral Purpose Flange-Mount Ball Bearings

SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 1 15/16 in Bore, Cast Iron

The SEALMASTER 4 Bolt Flange Bearing is a general purpose flange-mount ball bearing with a 1 15/16 in cylindrical bore and a cast iron housing. It features set screws for shaft mounting and uses NLGI #2 Equivalent…

SKU 3G-OTH-103165

Brand
SEALMASTER
Item
4 Bolt Flange Bearing: Radial Ball, 1 15/16 in Bore, Cast Iron
Category
General Purpose Flange-Mount Ball Bearings
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Technical Specifications

SEALMASTER
Manufacturer Part Number
SF-31
Type
Cast Iron, Set Screws
Bore
1 15/16 in
Lg
5 5/8 in
Bore Type
Cylindrical
Lubricant Material
NLGI #2 Equivalent
Mounting Bolt Size
9/16 in
System of Measurement
Inch
View Full Spec Sheet

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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 15/16 in cylindrical bore and a cast iron housing. It features set screws for shaft mounting and uses NLGI #2 Equivalent lubricant. The mounting bolt size is 9/16 in, and the overall length is 5 5/8 in. This inch-system bearing is identified by manufacturer part number SF-31.

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-31 bearing?

The SEALMASTER SF-31 is a 4 bolt flange bearing with a 1 15/16 in cylindrical bore, cast iron housing, and set screws for shaft mounting. It uses NLGI #2 Equivalent lubricant, has a mounting bolt size of 9/16 in, and an overall length of 5 5/8 in. It is an inch-system bearing.

Where to buy the SEALMASTER SF-31 bearing worldwide?

3G Electric supplies the SEALMASTER SF-31 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 the SEALMASTER 4 Bolt Flange Bearing?

To install the SEALMASTER 4 Bolt Flange Bearing, first clean the shaft and housing bore. Slide the bearing onto the shaft, align the flange bolt holes with the mounting surface, and tighten the 9/16 in bolts evenly. Secure the shaft by tightening the set screws with a hex key. Lubricate per NLGI #2 Equivalent guidelines.

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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