belt tension calculator

FAG Strand-Force Calculating-Programm "TBTC" for guiding values of belt tensions at belt transmissions. Version: 1.1 Date: 07.04.2010 V-belts, Ribbed V-belts and Power belts: Belt type: Belt masses: [kg/m] V-belts: per belt SPZ 0.074 SPA 0.123 Effective diameter SPB 0.195 of the smaller wheel SPC 0.377 10 0.064 13 0.109 Length of the free belt trum 17 0.196 20 0.266 Please insert the following values: 22 0.324 Machine Power 400.00 kW 25 0.420 Number of belts 1 32 0.668 Rotations of the smaller wheel 1500 RPM 40 0.958 Length of the free belt trum 3650 mm Ribbed V-belts: per 10 ribs Effective diameter of the smaller wheel 400 mm PJ 0.082 Belt mass 2.000 kg/m PL 0.320 PM 1.100 Results: Power belts: per V-belt rib Belt-Frequency 10 Hz SPZ 0.120 10912 N SPA 0.166 SPB 0.261 ! Attention ! SPC 0.555 3V/9J 0.120 5V/15J 0.252 while they are in use. Ribbed V-belts and Power belts not ! 8V/25J 0.693 !! ATTENTION !! The Trum-Force may not be higher than half of the maximum axial bearing load. Please insert the following values: Belt type: Belt masses: [kg/m] Machine Power 15 kW Toothed belts: per 10 mm width Tooth-pitch 3 mm (Polyurethane) Rotations of the smaller wheel 1000 RPM T 2,5 0.015 Number of teeth of the smaller wheel 50 T 5 0.024 Factor for application-range / machine- 1 T 10 0.048 Length of the free belt trum 560 mm T 20 0.084 Belt mass 0.084 kg/m AT 3 0.023 AT 5 0.034 Results: AT 10 0.063 Belt-Frequency 239 Hz AT 20 0.106 6000 N !Attention! Tighten the toothed belts maximally up to the calculated trumm-force or frequency! !! ATTENTION !! T RUMMY B elt- T ension C alculator Belt-Strand-force (tension force V-belts need to be pulled with the Factor 1,3 compared to the calculated Force at he first mounting , because this will reduce Toothed Belts (Polyurethan) : Belt-Strand-force (tension force The Trum-Force may not rise above the half of the maximum axial Bearing- Loading. FAG Industrial Services GmbH makes its best efforts to ensure that the information presented is reliable and correct. However, FAG Industrial Services GmbH does not assume any liability for damage or loss directly or indirectly caused in connection with accessing or using this calculator owned and operated by third parties.

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FAG Strand-Force Calculating-Programm "TBTC" for guiding values of belt tensions at belt transmissions.

Version: 1.1 Date: 07.04.2010

V-belts, Ribbed V-belts and Power belts:Belt type: Belt masses: [kg/m]

V-belts: per beltSPZ 0.074SPA 0.123

Effective diameter SPB 0.195 of the smaller wheel SPC 0.377

10 0.064 13 0.109

Length of the free belt trum 17 0.19620 0.266

Please insert the following values: 22 0.324Machine Power 400.00 kW 25 0.420Number of belts 1 32 0.668Rotations of the smaller wheel 1500 RPM 40 0.958Length of the free belt trum 3650 mm Ribbed V-belts: per 10 ribsEffective diameter of the smaller wheel 400 mm PJ 0.082Belt mass 2.000 kg/m PL 0.320

PM 1.100

Results: Power belts: per V-belt rib

Belt-Frequency 10 Hz SPZ 0.120

10912 N SPA 0.166SPB 0.261

! Attention ! SPC 0.5553V/9J 0.1205V/15J 0.252

while they are in use. Ribbed V-belts and Power belts not ! 8V/25J 0.693

!! ATTENTION !!The Trum-Force may not be higher than half of the maximum axial bearing load.

Please insert the following values: Belt type: Belt masses: [kg/m]Machine Power 15 kW Toothed belts: per 10 mm widthTooth-pitch 3 mm (Polyurethane)Rotations of the smaller wheel 1000 RPM T 2,5 0.015Number of teeth of the smaller wheel 50 T 5 0.024Factor for application-range / machine-type 1 T 10 0.048Length of the free belt trum 560 mm T 20 0.084Belt mass 0.084 kg/m AT 3 0.023

AT 5 0.034

Results: AT 10 0.063

Belt-Frequency 239 Hz AT 20 0.106

6000 N

!Attention! Tighten the toothed belts maximally up tothe calculated trumm-force or frequency!

!! ATTENTION !!

The Trum-Force may not rise above the half of the maximum axial Bearing-Loading.

TRUMMY Belt-Tension Calculator

Belt-Strand-force (tension force)

V-belts need to be pulled with the Factor 1,3 compared to thecalculated Force at he first mounting, because this will reduce

Toothed Belts (Polyurethan):

Belt-Strand-force (tension force)

FAG Industrial Services GmbH makes its best efforts to ensure that the information presented is reliable and correct. However, FAG Industrial Services GmbH does not assume any liability for damage or loss directly or indirectly caused

in connection with accessing or using this calculator owned and operated by third parties.

B19

Insert here the motor power that drives the belt.

B20

Number of the belts, which are running parallel towards the axle.

B21

Usually quoted on the type label of the motor.

B22

Insert the length of the free- belt trum, according to the picture above.

B23

Insert the effective diameter of the smaller wheel, according to the picture above.

B24