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SEALMASTER Pillow Block Bearing: 1 5/16 in Bore, Cast Iron, Set Screws - Low-Base Pillow Block Ball Bearings
SEALMASTERLow-Base Pillow Block Ball Bearings

SEALMASTER Pillow Block Bearing: 1 5/16 in Bore, Cast Iron, Set Screws

The SEALMASTER NPL-21 is a low-base pillow block ball bearing with a 1 5/16 in bore, constructed from cast iron and featuring set screw locking. This inch-system unit has a 1 13/16 in shaft height and accommodates a…

SKU 3G-OTH-105139

Brand
SEALMASTER
Item
Pillow Block Bearing: 1 5/16 in Bore, Cast Iron, Set Screws
Category
Low-Base Pillow Block Ball Bearings
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Technical Specifications

SEALMASTER
Manufacturer Part Number
NPL-21
Type
Cast Iron, Set Screws
Shaft Ht
1 13/16 in
Mounting Bolt Size
1/2 in
System of Measurement
Inch
View Full Spec Sheet

Technical Documents

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

Product Description

The SEALMASTER NPL-21 is a low-base pillow block ball bearing with a 1 5/16 in bore, constructed from cast iron and featuring set screw locking. This inch-system unit has a 1 13/16 in shaft height and accommodates a 1/2 in mounting bolt size.

Frequently Asked Questions

What is the SEALMASTER NPL-21 pillow block bearing used for?

The SEALMASTER NPL-21 low-base pillow block bearing supports rotating shafts in industrial machinery such as conveyors, fans, and pumps. Its cast iron housing and set screw locking provide reliable shaft retention in moderate-load, inch-system applications.

What are the specifications of the SEALMASTER NPL-21?

The SEALMASTER NPL-21 has a 1 5/16 in bore, cast iron housing, set screw locking, and a 1 13/16 in shaft height. It uses inch-system measurements and fits a 1/2 in mounting bolt. The manufacturer part number is NPL-21.

Where to buy the SEALMASTER NPL-21 worldwide?

3G Electric supplies the SEALMASTER NPL-21 pillow block bearing worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the SEALMASTER NPL-21 pillow block bearing?

Mount the bearing on a clean, level surface using 1/2 in bolts. Align the shaft with the bore, tighten the set screws evenly against the shaft, and verify free rotation. Follow SEALMASTER guidelines for lubrication and periodic retightening.

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 low-base pillow block 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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