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ALUMINIUM
SERIES WORM GEARBOX
> BL SERIES
Selection
& Performance table of BL Series
Selection
example: (For type BL and BLM)
To select a worm gear box for the following application:
Load torque = 27 N.m. Out-put RPM
= 70.
Duty conditions: (a) Light loading, (b)
60 Starts/Hour, (c) 20 Hrs/Day
| 1. |
Refer
Table 1 and get the Duty factor "K" = 1.38
for the specified duty conditions. |
| 2.
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Calculate
permissible out put torque of the gear box.
M2 = K x Load torque = 1.38 x 27 =
37.3 N.m. |
| 3.
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To
select the gear box model and the power of
the drive motor refer Table NO.2.
Under the vertical column for N2 = 70 RPM
(Ratio i = 20 : 1) read various torque
values, Select the row which gives a figure
nearest to the calculated torque which is
M2 = 37.3 N.m. |
| 4.
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The
nearest torque value is 39 N-m. has two options
of gear boxes. One is with gear box model
BL 40 20 ... and second is with BL
50 20 ... |
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