Standard Dimensional Tolerances - Back to Technical Data
Tolerances (Note 1)
Pitch
CD
(Note2)
Width
Thickness
Range
Variation
(Note3)
Range
Variation
(Note 3)
T50
+/-.020
+/-.020
0.008
+/-.008
0.008
T80 (MXL)
+/-.020
+/-.020
0.008
+/-.008
0.008
T81 (40DP)
+/-.020
+/-.020
0.008
+/-.008
0.008
T83
+/-.020
+/-.020
0.008
+/-.008
0.008
XL
+/-.020
+/-.020
0.008
+/-.010
0.010
L
+/-.020
+/-.020
0.008
+/-.010
0.010
H
+/-.020
+/-.020
0.008
+/-.010
0.010
T2.5
+/-.020
+/-.020
0.008
+/-.008
0.008
T5
+/-.020
+/-.020
0.008
+/-.010
0.008
T10
+/-.020
+/-.020
0.008
+/-.010
0.008
Pitch
CD
(Note2)
Width
Thickness
Range
Variation
(Note3)
Range
Variation
(Note3)
S1M (STPD)
+/-.020
+/-.020
0.008
+/-.008
0.008
S2M (STPD)
+/-.020
+/-.020
0.008
+/-.008
0.008
S3M (STPD)
+/-.020
+/-.020
0.008
+/-.008
0.008
S5M (STPD)
+/-.020
+/-.020
0.008
+/-.010
0.010
S8M (STPD)
+/-.020
+/-.020
0.008
+/-.010
0.010
H3M (HTD)
+/-.020
+/-.020
0.008
+/-.010
0.010
H5M (HTD)
+/-.020
+/-.020
0.008
+/-.010
0.010
H8M (HTD)
+/-.020
+/-.020
0.008
+/-.010
0.010

Note 1: All dimensions are in inches.
Note 2: Belts with pitch lengths greater than 55" have a CD tolerance of +/-.030 or more.
Note 3: Variation within a belt can not exceed this value.