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Tensioning Forces
Belt Section
SPZ
SPA
SPB
SPC
A
B
BEARING LUBRICATION
Fan equipped with deep grooved ball bearing inserted in rubber damper has sufficient high
grade grease sealed in at the time of manufacture, there is no need for replenishment while in
use at normal speed & normal condition.
Fan equipped with deep grooved ball bearing inserted in pillow block also has sufficient high
grade grease sealed in at the time of manufacture, there is no need for replenishment while in
use at normal speed & normal condition. The pillow block housing has lubrication point suitable for
lubricating when the bearing operating temperature exceeding its nominal of 70 degree, or the
bearing is used in very dusty or damp or high contamination environment.
Fan equipped with spheriodical roller bearing assembly in the plummer block housing has
lubrication point when the life of the grease is expectancy.
The bearings must be greased at regular intervals in order to attain the maximum permissible
life of the bearing under more severe operating conditions.
The re-lubricating interval depends on the operating temperature, relevant operating conditions
speed and the type of grease used should be set by the operator.
Force required to deflect belt
16mm per metre of span
Small Pulley
Newton (N)
Diamter (mm)
56 - 95
100 - 140
80 - 132
140 - 200
112 - 224
236 - 315
224 - 335
85 - 115
375 - 560
115 - 150
80 - 140
125 - 200
Kilogram
force (Kgf)
13 - 20
1.3 - 2.0
20 - 25
2.0 - 2.5
25 - 35
2.5 - 3.6
35 - 45
3.6 - 4.6
45 - 65
4.6 - 6.6
65 - 85
6.6 - 8.7
8.7 - 11.7
11.7 - 15.3
10 - 15
1.0 - 1.5
20 - 30
2.0 - 3.1
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