18
For your nearest ROOTS Office, dial our Customer Service Hot Line 1 877 363 ROOTS (7668).
A
LLOWABLE
O
VERHUNG
L
OADS FOR
V-B
ELT
D
RIVES
U
NIVERSAL
RAI
®
/URAI
™
-J
UNITS
A
B
C
Belt Pull lbs =
252100 • Motor HP
Blower RPM • Sheave Diameter
B = (1/8” +
)
Sheave Width
2
Frame
Dimension
Max Allowable
Size
“A”
Shaft Load (lb-in.)
22, 24
0.61
80
32, 33, 36
0.80
300
42, 45, 47
1.02
640
53, 56, 59
1.13
1,110
65, 68, 615
1.36
1,550
76, 711, 718
1.16
2,300
NOTE: Arc of sheave belt contact on the smaller sheave not to be less than 170°
Driver to be installed on the inlet side for vertical units, and on the drive shaft side
for horizontal units.
A
LLOWABLE
O
VERHUNG
L
OADS FOR
V-B
ELT
D
RIVES
400 - 600 RAM
™
UNITS
A
1/8" Max
Belt Pull lbs =
27500 • Motor HP
Blower RPM • Sheave Diameter
Shaft Load (lb.in) = Belt Pull • (A + 1/8” +
)
Sheve Width
2
Max Allowable
Frame
Standard
Bottom Drive or
Shaft Load
Size
Unit
Double Shaft Seal
(lb-in.)
404, 406
1.90
2.11
3,200
409, 412, 418
1.90
2.11
3,200
616, 624
2.11
2.67
7,975
Dimension “A”
NOTE: Arc of sheave belt contact on the smaller sheave not to be less than 170°
Driver to be installed on the inlet side for vertical units, and on the drive shaft side for
horizontal units.
C = Distance between drive bearing center line and
sheave center line (A+B)
Shaft Load (lb.in) = Belt Pull • C
F
IGURE
2
Содержание UNIVERSAL RAI Series
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