©Copyright 2010-Sonic Air Systems Inc.
Page
21
of
26
Table 4 – Recommended Belt Tensioning Force for Belt P/N 12708
for applications with NEMA 40 HP motors
Motor
Sprocket
Part
Number
Blower
Sprocket
Part
Number
Motor
RPM
Blower
RPM
New
Belt
Tensioning
Force
[lbf]
Used
Belt
Tensioning
Force
[lbf]
New
or
Used
Belt
Span
Length
[IN]
12775
12772
3500
4200
19
14
25
12774
12772
3500
3967
20
14
26
12773
12772
3500
3733
20
14
26
12772
12772
3500
3500
21
15
26
Table 5 – Recommended Belt Tensioning Force for Belt P/N 12708
for applications with NEMA 50 HP motors
Motor
Sprocket
Part
Number
Blower
Sprocket
Part
Number
Motor
RPM
Blower
RPM
New
Belt
Tensioning
Force
[lbf]
Used
Belt
Tensioning
Force
[lbf]
New
or
Used
Belt
Span
Length
[IN]
12775
12772
3500
4200
22
16
25
12774
12772
3500
3967
23
16
26
12773
12772
3500
3733
23
17
26
12772
12772
3500
3500
24
17
26
Table 6
-
NEMA FRAME MOTORS
MOTOR / SPROCKET / QD BUSHING CROSS REF.
*
Contact Sonic for appropriate motor
Motor HP Motor Frame
Motor QD
Bushing
Bore Size
Motor
Sprocket
OD
Motor P/N
QD
Bushing
P/N
Sprocket
P/N
40
324 TS
1-7/8 in
6.2 in
*
12674
12775
324 TS
1-7/8 in
5.9 in
*
12673
12774
324 TS
1-7/8 in
5.5 in
*
12673
12773
324 TS
1-7/8 in
5.2 in
*
12673
12772
50
326 TS
1-7/8 in
6.2 in
*
12674
12775
326 TS
1-7/8 in
5.9 in
*
12673
12774
326 TS
1-7/8 in
5.5 in
*
12673
12773
326 TS
1-7/8 in
5.2 in
*
12673
12772