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Gearboxes


These gearboxes are suitable for the transmission of rotating motions between two shafts at right-angles.

• Available with reduction ratios: 1:1 - 1:2 in reducing (standard) - 2:1 in multiplying (on request available in version A-B-C,
not availabe in version D)
• Anodized aluminium case, stainless steel shafts AISI 303
• Torque 4 Nm
• Radial load 15 kg - axial load 1,5 kg
• Models: 
Version A with 2 outputs
Version B with 3 outputs 
Version C with 3 ouputs with opposite rotation
Version D with 3 outputs, 2 through hollow shafts
Version E with 4 outputs 
• output shafts: M = male / F = female Ø8
   (see section "Overall dimensions")
• 2 outputs, weight gr. 145; 3 outputs, weight gr. 150

➤ Available on request:
• Output shafts male / female Ø10 - Ø12 - Ø14*
• Version with case in stainless steel AISI 303
• Models with spiral bevel gears in versions A-B-C-D, ratio 1/1. The 'SP' spiral gearboxes allow high precision, silent operation, and 30% increased output torque.

Photogallery

OUTPUT SHAFTS
 
M = male  
    

F = female 
                                                          

 F female through shaft (available only on version "D")


VERSION  "A" M-M



VERSION "A" M-F
 

VERSIONE  "A" F-F

 


VERSION  "B" M-M-M



VERSION  "B" F-M-M


VERSION  "C" M-M-M with opposite rotation


VERSION  "C" M-F-F with opposite rotation 



VERSION  "C" F-M-M with opposite rotation 


VERSION  "C" F-F-F with opposite rotation



VERSION  "D" M-F-F with through-hollow shaft

               

1. 2 x set screws M4
2. through female shaft 

VERSION  "D" F-F-F with through-hollow shaft



1. 2 x set screws M4
2. through female shaft 

VERSION  "E" M-M-M-M



VERSION  "E" F-F-F-F



1. 2 x set screws M4
2. Through shafts

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REPRESENTATION OF REDUCTION AND MULTIPLYING RATIOS          

                                                   

                               

Example:
1:2
in reducing                   2:1 in mulitplying (not available in version D)
n1 
= 1000 rpm                   n1 = 1000 rpm
n2 
= 500 rpm                     n2 = 2000 rpm

The ratio and the configuration are determined by the input shaft (always shown in the bottom of the drawing n1), the others shaft following clockwise.
                                                                           

     RADIAL AND AXIAL LOAD 
      Fr = 150 N, radial load, is the load acting in perpendicular direction to the shaft/axise   



Fa = 15 N, axial load, is the load acting of the shaft/axis  

T = 4 Nm output torque

The loads acting on the shafts can be of two types (referred to the axis of the shaft):
Fr - radial load 
Fa - axial load, when ordering specify whether the axial load is 'pull' or 'push' type. 
«The loads are generated by the items connected to the gearbox and can be created for example by the pull of belt drives, accelerations and decelerations, structural misalignments, vibrations, shocks, etc.»  

 GEARBOX LIFETIME CALCULATION
Straight bevel gears  Spiral bevel gears 'SP'
      
THEORETIC EXPECTED LIFE = 10.000H X Fu


                   RECOMMENDED TORQUE (Nm) 
Fu = --------------------------------------------
            APPLIED TORQUE (Nm)
 
       


 The lifetime of 10.000h considers the following conditions:
• Applied torque = advised torque (see tables)
• Maximum of 8 working hours per day
• Working temperature 20 °
• No shocks
• The spiral bevel gearboxes 'SP' allow a 30% increased output torque 

➜ In case of continuous use, please contact our Technical Dept. In such applications, a grease fitting will be installed to allow periodic addition of lubricant with a frequency based on the work conditions.

 Max torque «Nm»
  Recommended torque «Nm» 

Output torque with ratio 1:1
Max torque 
6
5,3
4,4
3,8
3,2
2,7
Recommended torque
4
 3,5
2,9
2,5
2,1
1,8
Max torque 'SP' 7,8  6,9  5,7  4,9  4,1  3,5 
Recommended torque 'SP'  5,2  4,5 3,7  3,2  2,7  2,3 
rpm
50
100
200
400
800
1400
  Efficiency = 90%

                                                                                                 

Output torque with ratio 1:2
Max torque
5,3
4,6
3,9
3,3
2,8
2,4
Recommended torque
3,5
3,1
2,6
2,2
1,9
1,6
rpm
50
100
200
400
800
1400
  Efficiency = 90%

 

Output torque with ratio 2:1
Max torque
2,4
2,1
1,8
1,5
1
0,82
Recommended torque 
1,6
1,4
1,2
1
0,85
0,7
rpm
50
100
200
400
800
1400
 Efficiency = 90%


⦿ 
To choose the most suitable gearbox, we advise to consult also the figures, table, and the technical data shown in the "General Information".