Belts
Timing pulleys, Tensioners, pulley stock and flanges
Tensioners York Tensioners - Which Type Should I Use? Table of Tolerances Synchronous Drive Specifications
Design guidelines
Center Distance Calculation Horsepower and Torque Rating Formulas Standard Calculations

Table of Tolerances

TIMING PULLEYS O.D. TOLERANCES

.0816” PITCH (40 DP) +.000 -.003

2mm, 3mm, 5mm, .080”, 1/5”, 3/8” PITCH

0” – 1.000” O.D. +.002 -.000
1.001” – 2.000” O.D. +.003 -.000
2.001” – 4.000” O.D. +.004 -.000
4.001” – 7.000” O.D. +.005 -.000
7.001” – 12.000” O.D. +.006 -.000
12.001” – 20.000” O.D. +.007 -.000
20.000” AND UP O.D. +.008 -.000

.0816” PITCH (40 DP)

URETHANE POLYESTER CORD

BREAKING STRENGTH: 520 LBS. PER INCH OF WIDTH

TEMPERATURE RANGE: 0°F TO 180°F

LENGTH TOLERANCE: CENTER DISTANCE TOLERANCE ± .020”

WIDTH TOLERANCE: ±.020” FOR BELTS 1/16”- 4” WIDE

.080” PITCH

URETHANE POLYESTER CORD

BREAKING STRENGTH: 520 LBS. PER INCH OF WIDTH

TEMPERATURE RANGE: 0°F TO 180°F

LENGTH TOLERANCE: CENTER DISTANCE TOLERANCE ± .020”

WIDTH TOLERANCE: ±.020” FOR BELTS 1/16”- 4” WIDE

.0816” PITCH (40 DP)

URETHANE KEVLAR CORD

BREAKING STRENGTH: 1050 LBS. PER INCH OF WIDTH

TEMPERATURE RANGE: 0°F TO 180°F

LENGTH TOLERANCE: CENTER DISTANCE TOLERANCE ± .020”

WIDTH TOLERANCE: ±.020” FOR BELTS 1/16”- 4” WIDE

.080” PITCH

URETHANE KEVLAR CORD

BREAKING STRENGTH: 1050 LBS. PER INCH OF WIDTH

TEMPERATURE RANGE: 0°F TO 180°F

LENGTH TOLERANCE: CENTER DISTANCE TOLERANCE ± .020”

WIDTH TOLERANCE: ±.020” FOR BELTS 1/16”- 4” WIDE

1/5” & 3/8″ PITCH

URETHANE POLYESTER CORD

BREAKING STRENGTH: 630 LBS. PER INCH OF WIDTH

TEMPERATURE RANGE: 0°F TO 180°F

LENGTH TOLERANCE: CENTER DISTANCE TOLERANCE ± .020”

WIDTH TOLERANCE: ± .020” FOR BELTS 1/16”– 4” WIDE

1/5” PITCH

URETHANE KEVLAR CORD

BREAKING STRENGTH: 2500 LBS. PER INCH OF WIDTH

TEMPERATURE RANGE: 0°F TO 180°F

LENGTH TOLERANCE: CENTER DISTANCE TOLERANCE ± .020”

WIDTH TOLERANCE: ± .020” FOR BELTS 1/16”– 4” WIDE

3/8” PITCH

URETHANE KEVLAR CORD

BREAKING STRENGTH: 3000 LBS. PER INCH OF WIDTH

TEMPERATURE RANGE: 0°F TO 180°F

LENGTH TOLERANCE: CENTER DISTANCE TOLERANCE ± .020”

WIDTH TOLERANCE: ± .020” FOR BELTS 1/16”– 4” WIDE

1/5” PITCH

Neoprene and TruMotion

BREAKING STRENGTH: 895 LBS. PER INCH OF WIDTH

TEMPERATURE RANGE: -30°F TO 185°F

LENGTH TOLERANCE: CENTER DISTANCE TOLERANCE ± .020”

WIDTH TOLERANCE: see chart on page E6

3/8” PITCH

Neoprene and TruMotion

BREAKING STRENGTH: 920 LBS. PER INCH OF WIDTH

TEMPERATURE RANGE: -30°F TO 185°F

LENGTH TOLERANCE: CENTER DISTANCE TOLERANCE ± .020”

WIDTH TOLERANCE: see chart on page E6