Timing Belt Tension - Mitsubishi Electric RH-FRH Series Instruction Manual

5 Maintenance and Inspection

(12) Timing belt tension

The following table shows the preset values of the sonic belt tension gauge, the tension value for new belt
installation, and the tension value as the replacement guideline.
Table 5-8 ： Belt tension
Axis
RH-3FRH series
J3
J4 (motor side)
J4 (shaft side)
RH-6FRH series
J3
J4 (motor side)
J4 (shaft side)
RH-12FRH series
J3
J4 (motor side)
J4 (shaft side)
RH-20FRH series
J3
J4 (motor side)
J4 (shaft side)
RH-3FRHR series
J1
J2
J3
J4 (motor side)
J4 (shaft side)
Maintenance and inspection procedures
5-125
Belt type
M(g/m)
309-EV3GT-6 2.5
336-EV3GT-6 2.5
282-EV3GT-12 2.5
264-EV3GT-9 2.5
315-EV3GT-6 2.5
363-EV3GT-12 2.5
288-EV3GT-12 2.5
417-EV3GT-9 2.5
456-EV3GT-20 2.5
303-EV3GT-12 2.5
417-EV3GT-9 2.5
456-EV3GT-20 2.5
340-5GT-20 4.0
363-3GT-12 2.5
297-3GT-9 2.5
345-3GT-6 2.5
312-3GT-12 2.5
Preset value
W(mm/R) S(mm)
6 96
6 64
12 74
9 82
6 64
12 95
12 71
9 99
20 121
12 71
9 99
20 121
20 84
12 103
9.0 77
6.0 69
12 82
Tension for new belt Replacement guideline
installation (N)
39 to 48
39 to 48
80 to 97
59 to 79
39 to 48
80 to 97
83 to 101
60 to 73
138 to 151
83 to 101
60 to 73
138 to 151
171 to 209
80 to 97
59 to 73
39 to 48
80 to 97
tension (N)
15
15
30
22
15
30
30
22
49
30
22
49
69
30
22
15
30