Menu
Smarter Bearing Selection Is Here

The Timken® Syber® Bearing System Designer Tool now features Smart Selection, enabling users to find the right bearing faster by filtering options based on target life and key dimensions.

Learn More
Analyze Bearing Performance in an Application with Timken® Syber® Bearing System Designer

A powerful software tool that combines calculators and configurators to assist you with application design, bearing selection, installation, and troubleshooting. It’s free, easy-to-use, and accessible 24/7.

Learn More
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
Request Information
Unit of Measure

Specifications

Description 

 N/A 21903-7/8-PULLEY

Model

 N/A 21903

Type

 N/A Adjustable Center - Driver

Belt Size

 N/A 1922V

Ratio

 N/A 3:1

Weight

 N/A 13.38 lb

UPC Number

 N/A 21141

Dimensional Data

Bore Diameter 

 N/A 7/8 in

Keyway Size 

 N/A 3/16 x 3/32 in

Width

 N/A 2.500 in

Outside Diameter

 N/A 8.250 in

Max. Pitch Diameter (Dimension PD)

 N/A 8.030 in

Min. Pitch Diameter (Dimension PD)

 N/A 2.700 in

Overall Length

 N/A 6.750 in

Cubic inches

 N/A 459.42188 in³

Performance Data

Torque Capacity

 N/A 108.00 in·lb

Motor Power at 1,150 rpm

 N/A 2.00 hp

Motor Power at 1,750 rpm

 N/A 3.00 hp
By clicking Submit, you consent to the personal information you provide being used in the manner as described in our Privacy Notice, including access to that information by Timken personnel who may be located outside your home country. In addition, you agree that the CAD drawings are for your personal, one-time use only, and that you will not modify or create any compilation or derivative work using the CAD drawings or distribute or display the CAD drawings on any website or other media.