Catalog
Number
 
Load
(N)
 
 A1  B  C D E F G H1 L M N O R
Max
QTA-RH111M08 100 55 6 8 35 80 M6 8.5 51 8 22 M8 22 5
QTA-RH111M10 M10
QTA-RH111M12 M12
QTA-RH155M08 150 69 8 8.5 45 100 M8 10.5 64 8 28 M8 30 6
QTA-RH155M10  M10 
QTA-RH155M12 M12
QTA-RH188M10  300 83 10.5 8.5 58 100 M10 13 78 10 32 M10 37 8
QTA-RH188M12 M12
QTA-RH277M10 900 114 15 10.5 78 130 M12 17 107 12 50 M10 53 10
QTA-RH277M12 M12
QTA-RH277M16 M16

NOTE: Select N dimension to match the mounting bolt of the selected head (See pages 53 thru 56).
All dimensions are in mm unless otherwise noted.

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Quality Transmission Components
125 Railroad Avenue, Garden City Park, NY 11040-5016 
Phone: (516) 437-6700 • Fax: (516) 328-3343 
e-mail: support@econobelt.com
 

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RH Type Tensioner Arm
For 3/8" to 1" Pitch Roller Chains Low Friction Polyethylene Head - Spring Loaded