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SEALMASTER RFB 307 Flange-Mount Tapered Roller Bearing - Flange-Mount Tapered Roller Bearings
SEALMASTERFlange-Mount Tapered Roller Bearings

SEALMASTER RFB 307 Flange-Mount Tapered Roller Bearing

The SEALMASTER 4 Bolt Flange Bearing is a flange-mount tapered roller bearing with a 3 7/16 in cylindrical bore, cast iron housing, and set screw locking. It features a mounting bolt size of 3/4 in, uses NLGI #2…

SKU 3G-OTH-101764

Also listed as: RFB307 · RFB-307

Brand
SEALMASTER
Item
RFB 307 Flange-Mount Tapered Roller Bearing
Part Number
RFB 307
Category
Flange-Mount Tapered Roller Bearings
Available to Order
Also known as:RFB 307SEALMASTER
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SEALMASTER
Manufacturer Part Number
RFB 307
Type
Cast Iron, Set Screws
Bore
3 7/16 in
Lg
9 1/4 in
Bore Type
Cylindrical
Lubricant Material
NLGI #2 Equivalent
Mounting Bolt Size
3/4 in
System of Measurement
Inch

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

Product Description

The SEALMASTER 4 Bolt Flange Bearing is a flange-mount tapered roller bearing with a 3 7/16 in cylindrical bore, cast iron housing, and set screw locking. It features a mounting bolt size of 3/4 in, uses NLGI #2 Equivalent lubricant, and is supplied in inch measurements under manufacturer part number RFB 307.

Frequently Asked Questions

What is the SEALMASTER 4 Bolt Flange Bearing used for?

The SEALMASTER 4 Bolt Flange Bearing supports rotating shafts in industrial equipment such as conveyors, fans, and material handling systems. Its tapered roller design handles combined radial and thrust loads, while the cast iron housing and set screw locking provide secure mounting in demanding applications.

What are the specifications of the SEALMASTER RFB 307 bearing?

The SEALMASTER RFB 307 is a 4 bolt flange bearing with a 3 7/16 in cylindrical bore, cast iron housing, and set screw locking. It has a 9 1/4 in length, 3/4 in mounting bolt size, uses NLGI #2 Equivalent lubricant, and is supplied in inch measurements.

Where to buy the SEALMASTER RFB 307 bearing worldwide?

3G Electric supplies the SEALMASTER RFB 307 bearing worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this flange-mount tapered roller bearing.

How to select the correct SEALMASTER flange bearing for an application?

To select the correct SEALMASTER flange bearing, match the bore size to your shaft diameter (3 7/16 in for the RFB 307), confirm the housing material (cast iron), and verify the mounting bolt size (3/4 in). Ensure the load rating and lubricant (NLGI #2 Equivalent) suit your operating conditions.

Used in

Common applications for SEALMASTER
Conveyor systems — SEALMASTER SRF series stamped steel flange bearings support rotating shafts in light to moderate load sections.
Material handling equipment — SEALMASTER MSF series cast iron 4-bolt flange bearings handle radial loads on bulk handling conveyors and feeders.
Packaging machinery — SEALMASTER 2-bolt flange bearings with set screw locking mount on shafts in cartoners and case packers.
Food and beverage processing — SEALMASTER cast iron flange bearings with NLGI #2 grease are used in washdown-adjacent zones where sealed units are required.
Agricultural equipment — SEALMASTER stamped steel flange bearings support shafts in grain augers and harvesters where space is limited.
Fans and blowers — SEALMASTER flange-mount ball bearings with 1 in to 2 1/4 in bores support fan shafts in industrial ventilation systems.
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SEALMASTER Products

3G Electric supplies SEALMASTER flange-mount tapered roller bearings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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