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SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 2 1/2 in Bore, Cast Iron - General Purpose Flange-Mount Ball Bearings
SEALMASTERGeneral Purpose Flange-Mount Ball Bearings

SEALMASTER 4 Bolt Flange Bearing: Radial Ball, 2 1/2 in Bore, Cast Iron

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

SKU 3G-OTH-115253

Also listed as: SF40 · SF 40

Brand
SEALMASTER
Item
4 Bolt Flange Bearing: Radial Ball, 2 1/2 in Bore, Cast Iron
Category
General Purpose Flange-Mount Ball Bearings
Available to Order
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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-40
Type
Cast Iron, Set Screws
Bore
2 1/2 in
Lg
7 3/8 in
Bore Type
Cylindrical
Lubricant Material
NLGI #2 Equivalent
Mounting Bolt Size
5/8 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 2 1/2 in cylindrical bore and a cast iron housing. It features set screws for shaft locking and uses NLGI #2 Equivalent lubricant. The mounting bolt size is 5/8 in, and the system of measurement is inch.

Frequently Asked Questions

What is a SEALMASTER 4 Bolt Flange Bearing used for?

A SEALMASTER 4 Bolt Flange Bearing supports rotating shafts in industrial machinery such as conveyors, fans, and pumps. Its cast iron housing and set-screw locking provide reliable radial load support in general-purpose applications. 3G Electric supplies this bearing and can source it for worldwide delivery.

What are the specifications of the SEALMASTER SF-40 flange bearing?

The SEALMASTER SF-40 has a 2 1/2 in cylindrical bore, cast iron housing with set screws, and uses NLGI #2 Equivalent lubricant. Overall length is 7 3/8 in, mounting bolt size is 5/8 in, and it is an inch-system general purpose flange-mount ball bearing.

Where to buy a SEALMASTER 4 Bolt Flange Bearing worldwide?

3G Electric supplies the SEALMASTER 4 Bolt Flange Bearing (MPN SF-40) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this general purpose flange-mount ball bearing.

How to install a SEALMASTER set-screw flange bearing?

Clean the shaft and housing bore, slide the bearing onto the shaft, and tighten the set screws evenly to the torque specified by SEALMASTER. Align the flange bolt holes and secure with 5/8 in bolts. Lubricate per NLGI #2 Equivalent recommendations before operation.

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, 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)
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)

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