Optibelt ZRP - Page 50

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5 Design Hints, Dimensions and Tolerances
5.4 Standards, pulley tolerances
Table 5.10: Pulley widths
with
flanges b
f
(mm)
Widths
The minimum widths b
f
and b
f
’ for pulleys, with and without flanges,
are given in Table 5.10.
When using pulleys with only one flange, the lower value b
f
should
be used.
The width for pulleys without flanges b
f
’ can be reduced if the
tracking of the drive can be adjusted; it may not however be less
than the value b
f
specified for pulleys with flanges.
without
flanges b
f
’
(mm)
MXL 012 3.2 3.8 5.6
019 4.8 5.3 7.1
025 6.4 7.1 8.9
XL 025 6.4 7.1 8.9
031 7.9 8.6 10.4
037 9.5 10.4 12.2
L 050 12.7 14.0 17.0
075 19.1 20.3 23.3
100 25.4 26.7 29.7
H 075 19.1 20.3 24.6
100 25.4 26.7 31.2
150 38.1 39.4 43.9
200 50.8 52.8 57.3
300 76.2 79.0 83.5
XH 200 50.8 56.6 62.6
300 76.2 83.8 89.8
400 101.6 110.7 116.7
T2.5 4 4.0 5.5 8.0
6 6.0 7.5 10.0
10 10.0 11.5 14.0
T5; 6 6.0 7.5 10.0
AT 5 10 10.0 11.5 14.0
16 16.0 17.5 20.0
25 25.0 26.5 29.0
T10; 16 16.0 18.0 21.0
AT10 25 25.0 27.0 30.0
32 32.0 34.0 37.0
50 50.0 52.0 55.0
T20; 32 32.0 34.0 38.0
AT20 50 50.0 52.0 56.0
75 75.0 77.0 81.0
100 100.0 102.0 106.0
5M 10 10.0 12.0 15.0
15 15.0 17.0 19.0
25 25.0 27.0 29.0
50 50.0 52.0 56.0
8M 20 20.0 22.0 26.0
30 30.0 34.0 38.0
50 50.0 54.0 58.0
85 85.0 90.0 94.0
14M 40 40.0 47.0 54.0
55 55.0 63.0 70.0
85 85.0 95.0 102.0
115 115.0 126.0 133.0
170 170.0 180.0 187.0
with flanges without flanges
Figure 5.5: Pulley with and without flanges
Section Pulley Pulley Mion. pulley width
width nom. width
designation
(mm)