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Table 9C — High-Static Drive Data, 60 Hz — English
UNIT
40RM
007
40RM
40RMQ
40RMS
008
40RMS
010
40RM
40RMQ
40RMS
012
40RM
40RMS
014
40RM
40RMQ
40RMS
016
40RM
40RMS
024
40RM
40RMS
028
40RM
40RMS
034
MOTOR DRIVE
Motor Pulley Pitch Diameter
(in.)
3.4-4.4 3.4-4.4 3.4-4.4 3.4-4.4 3.7-4.7 4.3-5.3 4.3-5.3 4.3-5.3 4.3-5.3
Pulley Factory Setting
Full Turns Open
2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0
FAN DRIVE
Pulley Pitch Dia (in.) 7.0 6.0* 6.0 6.0 7.4 7.9 7.4 8.6 8.6
Pulley Bore (in.) 11111
7
⁄
16
1
7
⁄
16
1
7
⁄
16
1
15
⁄
16
1
15
⁄
16
Belt No. — Section 1—A 1—A 1—A 1—A 1—B 1—B 2—B 2—B 2—B
Belt Pitch (in.) 41.3 37.3 37.3 37.3 39.8 39.8 36.8 37.8 37.8
FAN SPEEDS (rpm)
Factory Setting 961 1121 1121 1121 979 1060 1118 1024 1024
Range
838-
1084
978-
1200*†
978-
1200†
978-
1200†
873-
1096
950-
1171
1014-
1200†
873-
1075
873-
1075
Max Allowable Speed (rpm) 1200 1200 1200 1200 1200 1200 1200 — —
Change per
1
⁄
2
Turn of
Moveable Motor Pulley
Flange
24.6 28.7 28.7 28.7 19.4 18.4 19.4 16.7 16.7
MAX FULL TURNS FROM
CLOSED POSITION
555566666
SHAFTS CENTER DISTANCE
(in.)
10.44-
12.32
10.44-
12.32
10.44-
12.32
10.44-
12.32
10.44-
12.32**
9.16-
10.99
8.16-
10.02
6.67-
9.43
6.67-
9.43
*Valves for 3-phase motor shown. For single-phase motor, pulley pitch diameter is 7 in.
and resulting fan speed is 837-1096 rpm.
†It is possible to adjust drive so that fan speed exceeds maximum allowable. DO NOT
exceed 1200 rpm.
**575-v unit has a center distance of 9.16-10.99.
Table 9D — Standard Drive Data, 50 Hz — English
UNIT
40RM
007
40RM
40RMQ
40RMS
008
40RMS
010
40RM
40RMQ
40RMS
012
40RM
40RMS
014
40RM
40RMQ
40RMS
016
40RM
40RMS
024
40RM
40RMS
028
40RM
40RMS
034
MOTOR DRIVE
Motor Pulley Pitch Diameter
(in.)
2.4-3.4 2.8-3.8 2.8-3.8 3.4-4.4 3.4-4.4 3.4-4.4 4.3-5.3 4.3-5.3 4.3-5.3
Pulley Factory Setting
Full Turns Open
2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0
FAN DRIVE
Pulley Pitch Dia (in.) 8.0 8.0 8.0 8.0 9.0 9.0 8.6 11.0 11.0
Pulley Bore (in.) 11111
7
⁄
16
1
7
⁄
16
1
7
⁄
16
1
15
⁄
16
1
15
⁄
16
Belt No. — Section 1—A 1—A 1—A 1—A 1—A 1—A 1—B 2—B 2—B
Belt Pitch (in.) 39.3 39.3 39.3 40.3 42.3 42.3 41.8 43.8 43.8
FAN SPEEDS (rpm)
Factory Setting 517 588 588 695 618 618 795 622 622
Range 428-606 499-677 449-677 606-784 538-697 538-697 713-878 557-687 557-687
Max Allowable Speed (rpm) 1200 1200 1200 1200 1200 1200 1200 1100 1100
Change per
1
⁄
2
Turn of
Moveable Motor Pulley
Flange
17.8 17.8 17.8 17.8 15.9 15.9 13.8 10.8 10.8
MAX FULL TURNS FROM
CLOSED POSITION
555555666
SHAFTS CENTER DISTANCE
(in.)
10.44-
12.32
10.44-
12.32
10.44-
12.32
10.44-
12.32
10.44-
12.32
10.44-
12.32
9.12-
10.99
6.67-
9.43
6.67-
9.43
29