Speed Selector's 9900 Series (for straight motor mounting) and 900 Series (for angled motor mounting) are designed to offer the most rigid motor support to insure the most vibration free and efficient drive performance, when used in conjunction with our dynamically balanced pulleys, and true running companion sheaves.

Precise machining of the steel guide rails and lead screw allow for effortless hand control of our bases, which are suitable for vertical and horizontal applications.

NEMA Std.
Frame Size
9900 Series
Model No.
900 Series
Model No.
56 9956 956
143T / 145T 9914 914
182T / 184T 9918 918
213T / 214T 9921 921
254T / 256T 9925 925
284T / 286T 9928 928
324T / 326T 9932  
364T / 365T 9936  
404T 9940  


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SPEED SELECTOR, Inc

Contact us via e-mail.

Tel: 440-543-8233 . Fax: 440-543-8527
17050 Munn Road, Chagrin Falls, Ohio 44023 USA