Related Resources: belt design

Synchronous Timing Belt Tooth Section Dimensions Table per ANSI / RMA IP-24, ISO 5299 and IS 9804.

Belt Drive Design and Engineering
Mechanical Gear Design and Engineering

Synchronous Timing Belt Tooth Section Dimensions Table per ANSI / RMA IP-24, ISO 5299 and IS 9804.

Synchronous timing belts to transmit rotary or linear motion. Timing belts are commonly used with stepper motors for precision driven movement. The principle benefit is the ability to separate the motor and load without needing rigid complex gear trains. Timing gear-belt chains can be low-backlash, and are tolerant of shaft misalignment and mechanical imprecision.

Single Sided TIming Belt
Single Timing Sided Belt

Synchronous Timing Belt Tooth Section Dimensions Table per ANSI / RMA IP-24
All dimensions are given in inch units

Single Sided
Belt Section
(Pitch)
Tooth
Angle
ht
bt
ra
rr
hs
MXL
(0.080)
40
0.020
0.045
0.005
0.005
0.045
XL
(0.200)
50
0.050
0.101
0.015
0.015
0.090
L
(0.375)
40
0.075
0.183
0.020
0.020
0.14
H
(0.500)
40
0.090
0.241
0.040
0.040
0.16
XH
(0.875)
40
0.250
0.495
0.047
0.062
0.44
XXH
(1.250)
40
0.375
0.750
0.060
0.090
0.62

Double Sided Timing Belt
Double Sided Timing Belt

Double Sided
Belt Section
(Pitch)
Tooth
Angle
ht
bt
ra
rr
hd
DXL (0.200)
50
0.050
0.101
0.015
0.01
0.120
DL (0.375)
40
0.075
0.183
0.020
0.020
0.180
DH (0.500)
40
0.090
0.241
0.040
0.040
0.234

References:

ANSI / RMA IP-24
ISO 5299
IS 9804

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