31
Table 19 — High-Static Drive Data, 60 Hz — English
UNIT
40RUA*25
40RUQ*25
40RUS*25
40RUA*28
40RUS*28
40RUA*30
40RUS*30
Motor Drive
Motor Pulley Pitch Diameter (in.)
4.3-5.3
4.3-5.3
4.3-5.3
Pulley Factory Setting
Full Turns Open
3.0
3.0
3.0
Fan Drive
Pulley Pitch Dia (in.)
7.4
8.6
8.6
Pulley Bore (in.)
1-7/16
1-15/16
1-15/16
Belt No. — Section
2 — B
2 — B
2 — B
Belt Pitch (in.)
36.8
378
37.8
Fan Speeds (rpm)
Factory Setting
1118
1024
1024
Range
1014-1200
a
NOTE(S):
a. It is possible to adjust drive so that fan speed exceeds maximum allowable. DO NOT exceed 1200 rpm.
873-1075
873-1075
Maximum Allowable Speed
(rpm)
1200
1100
1100
Change Per 1/2 Turn of
Moveable Motor Pulley Flange
19.4
16.7
16.7
Maximum Full Turn From Closed
Position
6
6
6
Shafts Center Distance (in.)
8.16-10.02
6.67-9.43
6.67- 9.43
Table 20 — Standard Drive Data, 60 Hz — SI
UNIT
40RUA*25
40RUQ*25
40RUS*25
40RUA*28
40RUS*28
40RUA*30
40RUS*30
Motor Drive
Motor Pulley Pitch Diameter
(mm)
94.0-119.4
109.2-134.6
109.2-134.6
Pulley Factory Setting
Full Turns Open
3.0
3.0
3.0
Fan Drive
Pulley Pitch Dia (mm)
239
279
279
Pulley Bore (mm)
36.5
49.2
49.2
Belt No. — Section
2 — B
2 — B
a
NOTE(S):
a. Four belts shipped with unit. Use correct set of 2 belts sized according to the pulley setting.
2 — B
a
Belt Pitch (mm)
1062
(2) 1987
(2) 1113
(2) 1987
(2) 1113
Fan Speeds (r/s)
Factory Setting
12.9
12.5
12.5
Range
11.3-14.4
11.4-14.0
11.2-13.9
Maximum Allowable Speed (r/s)
20.0
18.3
18.3
Change Per 1/2 Turn of
Moveable Motor Pulley
Flange
0.255
0.218
0.218
Maximum Full Turn From Closed
Position
6
6
6
Shafts Center Distance (mm)
232-279
169-240
169-240
Summary of Contents for 40RU 25
Page 3: ...3 Fig 1 Dimensions Size 25...
Page 4: ...4 Fig 1 Dimensions Size 25 cont...
Page 5: ...5 Fig 2 Dimensions Sizes 28 and 30...
Page 6: ...6 Fig 2 Dimensions Sizes 28 and 30 cont...
Page 37: ......
