Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

SEALMASTER Pillow Block Bearing: 3 in Bore, 2 Holes, 3 1/8 in Shaft Ht - Fixed Split-House Pillow Block Tapered Roller Bearings
SEALMASTERFixed Split-House Pillow Block Tapered Roller Bearings

SEALMASTER Pillow Block Bearing: 3 in Bore, 2 Holes, 3 1/8 in Shaft Ht

The SEALMASTER Pillow Block Bearing (SKU 44A501, MPN RPB 300-2) is a fixed split-house pillow block tapered roller bearing with a 3 in bore. It features a mounting bolt size of 3/4 in, a maximum speed of 1,750 RPM, 2…

SKU 3G-OTH-100318

Brand
SEALMASTER
Item
Pillow Block Bearing: 3 in Bore, 2 Holes, 3 1/8 in Shaft Ht
Category
Fixed Split-House Pillow Block Tapered Roller Bearings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

SEALMASTER
Manufacturer Part Number
RPB 300-2
Holes
2
Mount Lg
9 11/16 in
Shaft Ht
3 1/8 in
Maximum Speed
1,750 RPM
Mounting Bolt Size
3/4 in
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The SEALMASTER Pillow Block Bearing (SKU 44A501, MPN RPB 300-2) is a fixed split-house pillow block tapered roller bearing with a 3 in bore. It features a mounting bolt size of 3/4 in, a maximum speed of 1,750 RPM, 2 holes, a shaft height of 3 1/8 in, and a mounting length of 9 11/16 in.

Frequently Asked Questions

What is a SEALMASTER pillow block bearing used for?

A SEALMASTER fixed split-house pillow block tapered roller bearing supports rotating shafts in heavy industrial applications like conveyors, fans, and pumps. Its 3 in bore and 1,750 RPM max speed suit moderate-speed, high-load environments where reliable shaft alignment and easy maintenance are required.

What are the specifications of the SEALMASTER RPB 300-2 bearing?

The SEALMASTER RPB 300-2 is a fixed split-house pillow block tapered roller bearing with a 3 in bore, 3/4 in mounting bolt size, 2 holes, 3 1/8 in shaft height, and 9 11/16 in mounting length. Maximum speed is 1,750 RPM. It is designed for robust shaft support in industrial machinery.

Where to buy SEALMASTER pillow block bearings worldwide?

3G Electric supplies SEALMASTER pillow block bearings like the RPB 300-2 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this and other bearing models.

How to install a SEALMASTER fixed split-house pillow block bearing?

Ensure the shaft is clean and the bearing bore matches the 3 in shaft diameter. Align the base with the mounting holes (3/4 in bolts), tighten evenly to avoid distortion, and verify shaft height (3 1/8 in). Lubricate per manufacturer guidelines and check for free rotation before full load 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 fixed split-house pillow block tapered roller bearings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
SEALMASTER Pillow Block Bearing: 3 7/16 in Bore, 2 Holes, 3 3/4 in Shaft Ht, 11 1/4 in Mount Lg (MPN RPB 307-C2). Key specifications — Mounting Bolt Size: 7/8 in; Maximum Speed: 1,500 RPM; Brand: SEALMASTER.
SEALMASTER
SEALMASTER Pillow Block Bearing: 3 7/16 in Bore, 2 Holes, 3 3/4 in Shaft Ht, 11 1/4 in Mount Lg (MPN RPB 307-C2). Key specifications — Mounting Bolt Size: 7/8 in; Maximum Speed: 1,500 RPM; Brand: SEALMASTER.
SEALMASTER Pillow Block Bearing: 3 7/16 in Bore, 4 Holes, 3 3/4 in Shaft Ht, 11 1/2 in Mount Lg (MPN RPB 307-4). Key specifications — Mounting Bolt Size: 3/4 in; Maximum Speed: 1,500 RPM; Brand: SEALMASTER.
SEALMASTER
SEALMASTER Pillow Block Bearing: 3 7/16 in Bore, 4 Holes, 3 3/4 in Shaft Ht, 11 1/2 in Mount Lg (MPN RPB 307-4). Key specifications — Mounting Bolt Size: 3/4 in; Maximum Speed: 1,500 RPM; Brand: SEALMASTER.
SEALMASTER Pillow Block Bearing: 1 15/16 in Bore, 2 Holes, 2 1/4 in Shaft Ht, 7 3/16 in Mount Lg (MPN RPB 115-2). Key specifications — Mounting Bolt Size: 5/8 in; Maximum Speed: 2,500 RPM; Brand: SEALMASTER.
SEALMASTER
SEALMASTER Pillow Block Bearing: 1 15/16 in Bore, 2 Holes, 2 1/4 in Shaft Ht, 7 3/16 in Mount Lg (MPN RPB 115-2). Key specifications — Mounting Bolt Size: 5/8 in; Maximum Speed: 2,500 RPM; Brand: SEALMASTER.
SEALMASTER Pillow Block Bearing: 2 3/16 in Bore, 2 Holes, 2 1/2 in Shaft Ht, 7 15/16 in Mount Lg (MPN RPB 203-2). Key specifications — Mounting Bolt Size: 5/8 in; Maximum Speed: 2,500 RPM; Brand: SEALMASTER.
SEALMASTER
SEALMASTER Pillow Block Bearing: 2 3/16 in Bore, 2 Holes, 2 1/2 in Shaft Ht, 7 15/16 in Mount Lg (MPN RPB 203-2). Key specifications — Mounting Bolt Size: 5/8 in; Maximum Speed: 2,500 RPM; Brand: SEALMASTER.
SEALMASTER Pillow Block Bearing: 1 3/8 in Bore, 2 Holes, 1 7/8 in Shaft Ht, 5 15/16 in Mount Lg (MPN RPB 106-2). Key specifications — Mounting Bolt Size: 1/2 in; Maximum Speed: 3,500 RPM; Brand: SEALMASTER.
SEALMASTER
SEALMASTER Pillow Block Bearing: 1 3/8 in Bore, 2 Holes, 1 7/8 in Shaft Ht, 5 15/16 in Mount Lg (MPN RPB 106-2). Key specifications — Mounting Bolt Size: 1/2 in; Maximum Speed: 3,500 RPM; Brand: SEALMASTER.
SEALMASTER Pillow Block Bearing: 1 7/16 in Bore, 2 Holes, 1 7/8 in Shaft Ht, 5 15/16 in Mount Lg (MPN RPB 107-2). Key specifications — Mounting Bolt Size: 1/2 in; Maximum Speed: 3,500 RPM; Brand: SEALMASTER.
SEALMASTER
SEALMASTER Pillow Block Bearing: 1 7/16 in Bore, 2 Holes, 1 7/8 in Shaft Ht, 5 15/16 in Mount Lg (MPN RPB 107-2). Key specifications — Mounting Bolt Size: 1/2 in; Maximum Speed: 3,500 RPM; Brand: SEALMASTER.

More from SEALMASTER

View all SEALMASTER parts
SEALMASTER Pillow Block Bearing: 2 in Bore, 2 Holes, 2 1/4 in Shaft Ht, 7 3/16 in Mount Lg (MPN RPB 200-2). Key specifications — Mounting Bolt Size: 5/8 in; Maximum Speed: 2,500 RPM; Brand: SEALMASTER.
SEALMASTER
SEALMASTER Pillow Block Bearing: 2 in Bore, 2 Holes, 2 1/4 in Shaft Ht, 7 3/16 in Mount Lg (MPN RPB 200-2). Key specifications — Mounting Bolt Size: 5/8 in; Maximum Speed: 2,500 RPM; Brand: SEALMASTER.
SEALMASTER Pillow Block Bearing: 2 15/16 in Bore, 4 Holes, 3 1/8 in Shaft Ht, 8 3/4 in Mount Lg (MPN RPB 215-C4). Key specifications — Mounting Bolt Size: 5/8 in; Maximum Speed: 1,750 RPM; Brand: SEALMASTER.
SEALMASTER
SEALMASTER Pillow Block Bearing: 2 15/16 in Bore, 4 Holes, 3 1/8 in Shaft Ht, 8 3/4 in Mount Lg (MPN RPB 215-C4). Key specifications — Mounting Bolt Size: 5/8 in; Maximum Speed: 1,750 RPM; Brand: SEALMASTER.
SEALMASTER Pillow Block Bearing: 2 15/16 in Bore, 2 Holes, 3 1/8 in Shaft Ht, 9 11/16 in Mount Lg (MPN RPB 215-2). Key specifications — Mounting Bolt Size: 3/4 in; Maximum Speed: 1,750 RPM; Brand: SEALMASTER.
SEALMASTER
SEALMASTER Pillow Block Bearing: 2 15/16 in Bore, 2 Holes, 3 1/8 in Shaft Ht, 9 11/16 in Mount Lg (MPN RPB 215-2). Key specifications — Mounting Bolt Size: 3/4 in; Maximum Speed: 1,750 RPM; Brand: SEALMASTER.
SEALMASTER Pillow Block Bearing: 3 7/16 in Bore, 2 Holes, 3 3/4 in Shaft Ht, 11 1/4 in Mount Lg (MPN RPB 307-2). Key specifications — Mounting Bolt Size: 7/8 in; Maximum Speed: 1,500 RPM; Brand: SEALMASTER.
SEALMASTER
SEALMASTER Pillow Block Bearing: 3 7/16 in Bore, 2 Holes, 3 3/4 in Shaft Ht, 11 1/4 in Mount Lg (MPN RPB 307-2). Key specifications — Mounting Bolt Size: 7/8 in; Maximum Speed: 1,500 RPM; Brand: SEALMASTER.
SEALMASTER Pillow Block Bearing: 4 15/16 in Bore, 4 Holes, 5 1/2 in Shaft Ht, 13 1/2 in Mount Lg (MPN RPB 415-C4). Key specifications — Mounting Bolt Size: 7/8 in; Maximum Speed: 1,000 RPM; Brand: SEALMASTER.
SEALMASTER
SEALMASTER Pillow Block Bearing: 4 15/16 in Bore, 4 Holes, 5 1/2 in Shaft Ht, 13 1/2 in Mount Lg (MPN RPB 415-C4). Key specifications — Mounting Bolt Size: 7/8 in; Maximum Speed: 1,000 RPM; Brand: SEALMASTER.
SEALMASTER Pillow Block Bearing: 1 3/4 in Bore, 2 Holes, 2 1/4 in Shaft Ht, 7 3/16 in Mount Lg (MPN RPB 112-2). Key specifications — Mounting Bolt Size: 5/8 in; Maximum Speed: 2,500 RPM; Brand: SEALMASTER.
SEALMASTER
SEALMASTER Pillow Block Bearing: 1 3/4 in Bore, 2 Holes, 2 1/4 in Shaft Ht, 7 3/16 in Mount Lg (MPN RPB 112-2). Key specifications — Mounting Bolt Size: 5/8 in; Maximum Speed: 2,500 RPM; Brand: SEALMASTER.
SEALMASTER Pillow Block Bearing: 3 1/2 in Bore, 4 Holes, 3 3/4 in Shaft Ht, 11 1/64 in Mount Lg (MPN RPB 308-4). Key specifications — Mounting Bolt Size: 3/4 in; Maximum Speed: 1,500 RPM; Brand: SEALMASTER.
SEALMASTER
SEALMASTER Pillow Block Bearing: 3 1/2 in Bore, 4 Holes, 3 3/4 in Shaft Ht, 11 1/64 in Mount Lg (MPN RPB 308-4). Key specifications — Mounting Bolt Size: 3/4 in; Maximum Speed: 1,500 RPM; Brand: SEALMASTER.
SEALMASTER Pillow Block Bearing: 3 1/2 in Bore, 4 Holes, 3 3/4 in Shaft Ht, 10 9/16 in Mount Lg (MPN RPB 308-C4). Key specifications — Mounting Bolt Size: 5/8 in; Maximum Speed: 1,500 RPM; Brand: SEALMASTER.
SEALMASTER
SEALMASTER Pillow Block Bearing: 3 1/2 in Bore, 4 Holes, 3 3/4 in Shaft Ht, 10 9/16 in Mount Lg (MPN RPB 308-C4). Key specifications — Mounting Bolt Size: 5/8 in; Maximum Speed: 1,500 RPM; Brand: SEALMASTER.