SEALMASTER Pillow Block Bearing: 3 7/16 in Bore, Cast Iron, Set Screws
The SEALMASTER Pillow Block Bearing is a medium-duty pillow block ball bearing with a 3 7/16 in bore, designed for inch-system applications. This cast-iron unit features set-screw locking and a 4 in shaft height…
SKU 3G-OTH-103276
Need installation or engineering help?
Ask a question
Product Description
The SEALMASTER Pillow Block Bearing is a medium-duty pillow block ball bearing with a 3 7/16 in bore, designed for inch-system applications. This cast-iron unit features set-screw locking and a 4 in shaft height, with a mounting bolt size of 7/8 in (manufacturer part number MP-55).
Frequently Asked Questions
What is the SEALMASTER MP-55 pillow block bearing used for?
The SEALMASTER MP-55 is a medium-duty pillow block ball bearing used to support rotating shafts in industrial machinery. Its cast-iron housing and set-screw locking suit conveyors, fans, and material-handling equipment where inch-system components and a 3 7/16 in bore are required.
What are the specifications of the SEALMASTER MP-55 pillow block bearing?
The SEALMASTER MP-55 has a 3 7/16 in bore, cast-iron housing, set-screw locking, and a 4 in shaft height. It uses a 7/8 in mounting bolt and is designed for inch-system applications. The manufacturer part number is MP-55.
Where to buy the SEALMASTER MP-55 pillow block bearing worldwide?
3G Electric supplies the SEALMASTER MP-55 pillow block bearing worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this medium-duty bearing.
How to install the SEALMASTER MP-55 pillow block bearing?
Mount the bearing on a clean, level surface using 7/8 in bolts. Align the shaft with the 3 7/16 in bore, tighten the set screws evenly, and ensure the housing is not distorted. Follow SEALMASTER's generic installation guidelines for proper preload and lubrication.
Used in
Common applications for SEALMASTERSEALMASTER Products
3G Electric supplies SEALMASTER medium duty pillow block ball bearings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.












