RPB Series

Mounted Roller Bearings

The Sealmaster® RPB series bearing is a mounted tapered roller bearing with unique features that help it withstand the industry’s toughest application conditions.


The Sealmaster RPB bearing’s field-proven features start with a rugged, split cast-iron housing and cartridge inserts. The inserts are field replaceable, simplifying mounting and saving time and money when replacement is required. The outer race has a spherical shaped outer diameter, enabling the rollers and race to maintain line contact when the shaft is misaligned. This feature also allows the bearing to compensate for +/- 3 degrees of static misalignment, a significant advantage versus conventional mounted tapered roller bearings.


The race-mounted, felt-lined seals act as a filter, and the rotating flinger helps repel contamination build-up. The seals also move with the races, therefore improving sealing effectiveness. While the seals help prevent contaminants from entering the bearing, the positive lubrication system allows direct grease flow into the bearing. This brings fresh grease to the area than needs it the most - the rolling elements - while additional ports direct a small amount of grease to the insert-housing interface.


Heavy shock loads, shaft misalignment, abrasive particles, and water – Sealmaster RPB bearing’s features work in concert to address these types of application conditions and increase equipment uptime.


Heavy-Duty Tapered Roller Bearings

  • Allow for combined radial and thrust loads.


One-Piece, Self-Aligning Cartridge

  • Self-aligning insert compensates for up to +/- 3° of static misalignment.

  • Innovative design helps maintain proper rolling element contact with the races when misaligned.


Direct Lubrication System

  • Extra lubrication port helps prevent seal damage by venting pressure from over-greasing.

  • Bearing grease flow has a shorter path than competitive spherical roller bearing units.


Additional Features and Benefits:

  • Alignment pin helps prevent outer race rotation – a common problem in vibratory applications.

  • Select from two- and four-bolt pillow blocks in bore sizes from 1 3/16” to 5”, flange units from 1 3/16” to 4 1/2” and piloted flanges from 1 3/16” to 5”.

  • Replaceable cartridge inserts from 1 3/16” to 5”.

  • Exclusive diamond faceted setscrews contribute to improved clamping and resistance to back out.


Race-mounted Felt-Lined Flinger Seal

  • Filters out contaminants in dry, dusty, dirty conditions.

  • Mounted between the races – not subject to misalignment distortion.

  • Contact seal available for wet, moist conditions.


Durable Cast-Iron Split Housings

  • Housing base remains fixed and aligned with the shaft – quick insert replacement.

  • Standard RPB units are interchangeable with industry Type E mounting dimensions.

  • RPBXT bearings are interchangeable with SAF style four-bolt pillow block and are shaft ready for easier and faster installation.


This name is used, please enter another
{0} was created successfully.
{0} was deleted successfully.
New password and confirm password do not match.
The password entered does not comply with our password policy. Please try again.
The password entered does not comply with our password policy. Please try again.
You have already access to entered account.
Account already added
Please select an account
The entered account number is not valid or the account is not yet transitioned for use at Regalbeloit.com.
You must provide a valid account number to be added. Please contact your Sales Representative or Account Administrator if you don’t know your Account Number.
Please select Additional Access checkbox.
Please enter your address.
Please enter your address cont.
Please check to agree with Terms of Use and Privacy Policy.
Please enter your city.
Please enter your company name.
Please enter confirm password.
Please select your country.
Please enter a valid format for your email address.
Email address required
Please enter your email address.
Please enter your first name.
Please review and select a warehouse for Catalog/Part Numbers: {0}
Please enter your job title.
Please enter your last name.
The current password entered does not match your password or new password is the same like one of the previous or password changed last 30 days.
Profile updated successfully.
Error while request access.
Registration Information has been received.   Thank you for your interest in Regal.
Please enter new password.
Please enter old password.
Please enter a valid format for your phone number.
Please enter your phone number.
Please enter a valid format for your extension.
Please select at least one product category.
Please verify you are not a robot.
Registration Information has been received.   Thank you for your interest in Regal.
You must provide the name of a Regal Beloit employee who can confirm your need for access to Genteq technical documents.
Please select your state.
This email is already in use. Please log in.
Confirmation code has been sent successfully to your new email address. Please enter the Confirmation code and update the profile.
Email Address has been changed successfully. Please check your email for information to login again.
Verification code required
Please enter your zip code.
Your session has timed out. You must log in again to access secure content. Any work on the current page will be lost.
Your shopping cart qualifies for free shipping.
Add {0} more to your cart to qualify for free shipping.
Add {0} more to qualify for free shipping.
This item is discontinued, but you may order against the remaining inventory. You have requested {4} items of the total remaining quantity of {2}.
The following items have been added to your cart: {0}