Resources
Standards
MPTA B1c – Bore and Keyway Tolerances for V-Belted Sheaves (B1c-2010)
This standard defines the bore and keyway tolerances to be used for V-belted sheaves.
MPTA B2c -Standard Practice Sheave / Pulley Balancing (B2c-2017)
This standard defines the balance tolerances to be used with all transmission sheaves/pulleys with or without grooves or teeth.
MPTA B4c – Standard Surface Finish for Transmission Pulleys
This standard defines the maximum surface finish for transmission pulleys.
MPTA B6c – Quick Detachable Bushing and Mating Hub (B6c-2016)
This standard provides general dimensions and tolerances for inch quick detachable bushings and mating hubs.
MPTA B7i – Calculation of V-Belt Tensions And Shaft Loads (B7i-2007R 2013)
This standard provides a method for calculating and measuring belt tensions and for calculating shaft loads on a two sheave locked center V-Belt drive.
MPTA-B8i-2011 R2016 Sheave Arm Stress Formula
This standard provides a method for calculating bending stresses in v-belt sheave arms.
MPTA B9i – Taper-Lock Bushing & Mating Hub Standard (B9i-2013)
This standard defines the general dimensions and tolerances for Taper-Lock detachable bushings and mating hubs.
MPTA B13i – Rim Speed Limits Standard (B13i-2013)
This standard provides rim speed limits for sheaves and pulleys based on typical construction and materials. Any rim speed above 6,500 feet per minute must be carefully considered.
MPTA C1c – Elastomeric Coupling Glossary of Terms (MPTA C1c-2008R 2014)
This standard is a listing of commonly used terms as compiled by the members of the elastomeric coupling industry. It contains the definitions of these terms as they apply to elastomeric couplings.