Menu
Discover the New “My Dashboard” Experience

Join Eric Stasiowski, manager – online marketing & ecommerce, to see how you can save key items like documents, bearings, and distributor locations directly to your account.

View Video
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
Simplified Gear Force Analysis

Alex Waye, Timken Application Engineer, shows you how to instantly compute tangential, radial, and axial forces for better design decisions.

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

Specifications

Description 

 N/A 12905-1-1/8-PULLEY

Model

 N/A 12905

Type

 N/A Adjustable Center - Driver

Belt Size

 N/A 2926V

Ratio

 N/A 3:1

Weight

 N/A 25.44 lb

UPC Number

 N/A 21870

Dimensional Data

Bore Diameter 

 N/A 1 1/8 in

Keyway Size 

 N/A 1/4 x 1/8 in

Width

 N/A 3.560 in

Outside Diameter

 N/A 10.000 in

Max. Pitch Diameter (Dimension PD)

 N/A 9.700 in

Min. Pitch Diameter (Dimension PD)

 N/A 3.280 in

Overall Length

 N/A 6.440 in

Cubic inches

 N/A 644.00000 in³

Performance Data

Torque Capacity

 N/A 180.00 in·lb

Motor Power at 1,150 rpm

 N/A 3.00 hp

Motor Power at 1,750 rpm

 N/A 5.00 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.