We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

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

Also listed as: SF31 · SF 31

Brand
SEALMASTER
Item
4 Bolt Flange Bearing: Radial Ball, 1 15/16 in Bore, Cast Iron
Category
General Purpose Flange-Mount Ball Bearings
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

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

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 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.

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 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 1 7/8 in Bore, Cast Iron, Set Screws, 5 5/8 in Lg (MPN SF-30)
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SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 1 7/8 in Bore, Cast Iron, Set Screws, 5 5/8 in Lg (MPN SF-30)
SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 1 3/4 in Bore, Cast Iron, Set Screws, 5 13/32 in Lg (MPN SF-28)
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SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 1 3/4 in Bore, Cast Iron, Set Screws, 5 13/32 in Lg (MPN SF-28)
SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 1 13/16 in Bore, Cast Iron, Set Screws, 5 5/8 in Lg (MPN SF-29)
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SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 1 13/16 in Bore, Cast Iron, Set Screws, 5 5/8 in Lg (MPN SF-29)
SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 1 11/16 in Bore, Cast Iron, Set Screws, 5 13/32 in Lg (MPN SF-27)
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SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 1 11/16 in Bore, Cast Iron, Set Screws, 5 13/32 in Lg (MPN SF-27)
SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 2 1/8 in Bore, Cast Iron, Set Screws, 6 1/2 in Lg (MPN SF-34)
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SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 2 1/8 in Bore, Cast Iron, Set Screws, 6 1/2 in Lg (MPN SF-34)
SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 2 in Bore, Cast Iron, Set Screws, 5 5/8 in Lg, Square (MPN SF-32R)
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SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 2 in Bore, Cast Iron, Set Screws, 5 5/8 in Lg, Square (MPN SF-32R)

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SEALMASTER 2 Bolt Flange Bearing: Radial Ball, 5/8 in Bore, Cast Iron, Set Screws, 4 13/32 in Lg (MPN SFT-10)
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SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 1 7/16 in Bore, Cast Iron, Set Screws, 4 19/32 in Lg (MPN SF-23)
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