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Gearboxes

These angular transmissions with conics gears 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*).
• Aluminium case, anodised; stainless steel shafts
• Torque 45 Nm
• Radial load 75 kg - axial load 7,5 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
• output shafts: M = male /  F = female Ø14
  (see section "Overall dimensions").
• 2 outputs, weight gr. 1020; 3 outputs, weight gr. 1150.

➤ Available on request:
• Version with case and ouput shafts in stainless steel AISI 303
• Models with spiral bevel gears in versions A-B-C-Dratio 1/1-1/2-2/1*. The 'SP' spiral gearboxes allow high precision, silent operation, and 30% increased output torque.

 

Photogallery

OUTPUT SHAFTS

M = male


F = blind female


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


VERSION "A" M-M 

VERSION "A" M-F

VERSION "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

 

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

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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 = 750 N, radial load, is the load acting in perpendicular direction to the shaft/axise   

 

Fa = 75 N, axial load, is the load acting of the shaft/axis  

T = 45 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 

➜ For use in continuous, a grease nipple is provided, it is advisable to contact the technical department. 

 Max torque «Nm»
■ Recommended torque «Nm

 Output torque with ratio 1:1   
Max torque
45
37,9
31,9
26,8
22,5
19,6
Recommended torque 
30
25,3
21,3
17,9
15
13,1
Max torque 'SP'
 58,5 49,2  41,4  34,8  29,2  25,4 
Recommended torque 'SP'
 39  32,8 27,7  23,2  19,5  17 
rpm
50
100
200
400
800
1400
Efficiency = 90%

                                                                                                      

Output torque with ratio 1:2
Max torque
37,5
31,6
26,5
22,3
18,8
16,3
Recommended torque 
25
21,1
17,7
14,9
12,5
10,9
Max torque 'SP'
48,7
41
34,5
29
24,5
21,2
Recommended torque 'SP'
32,5
27,5
23
19,4
16,2
14,2
rpm
50
100
200
400
800
1400
Efficiency = 90%

                                                                                            

Output torque with ratio 2:1
Max torque
16,9
14,2
11,9
10
8,5
7,4
Recommended torque 
11,3
9,5
8
6,7
5,7
4,9
Max torque 'SP'
 22  18,5 15,5  13  11  9,7 
Recommended torque 'SP'
14,7  12,3  10,4  8,7  7,4  6,4 
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".