CRITERIA for Joints selection.
The table shows the Maximum allowable torque (expressed in Kgm) calculated on the basis with an angle of 10° and with continuous use. If the angle is more than 10°, the indicated values will be reduced in accordance with the torque factors shown below.
Example: criteria for selection of joint after taking into account the power to be transmitted,
the speed and the angle of inclination.
- power N 3 CV
- speed 2000 RPM.
- angle a 20°
To calculate the corresponding torque moment, follow the example:
716,2 x N 716,2 x 3
Mt = = = 1,074Kgm
The torque to be transmitted is 1074 Kgm but, since the joint angle is 20°, the user must select a joint with larger dimension and torque in order carry the needed torque on it.
Since the torque factor for 20° is 0,75 (as indicated on the table), divide Mt by F. Follow the example.
= MT 1,432Kgm
The appropriate joint should have a torque capability of 1432 Kgm or higher.
Per you reference, selected the proper Joint from the table of joint with needle bearings (, in the example, the V Series becasue of its speed). Model, in the example, is 105V.
Pay attention that 1 Kgm corresponds 9,80665Nm.
ROTAR is a brand owned by OFFICINA MECCANICA FRATELLI ARAMINI - Via Dordoni 5, Castelleone - 26012 - CR - ITALY - Phone +39 0374 58306 - VAT N. 00107640195