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66/8

Gearboxes

• Available with reduction ratios: 1:1 - 1:2 (standard) - 2:1 (not availabe in version «D»); (☞ Tab. 3 ).
• 1:2 and 2:1 ratios are only available with spiral gears.
• Aluminium case, anodised, stainless steel shafts AISI 303.
• Torque 90 Nm.
• Radial load 150 kg - axial load 15 kg (☞ Tab. 4 - Fig. 5 ).
• Models: 
 - Version «A» with 2 outputs,
 - Version «B» with 3 outputs, 
 - Version «C» (opposite rotation) with 3 ouputs,
 - Version «D» with 3 outputs, 2 through hollow shafts.
• Weight: version «A» = 2500 g; version «B» - «D» = 2700 g; version «C» = 2770 g.
• Output shafts: <M> = male / <F> =female Ø20 (☞  ).

➜ Available on request:
▪ Case in stainless steel AISI 303.
▪ Models with spiral bevel gears (☞ Tab. 2 - Fig. 2 ) are available in all versions. 
▪ Grease fitting is available in all versions (☞ Tab. 7 ).


 

 

Photogallery

 

AVAILABLE VERSIONS
⟪A⟫ ⟪B⟫ ⟪C⟫ ⟪D⟫
        

 

AVAILABLE OUTPUT SHAFTS
 M = male   F = female  F = female through shaft 
(available only on version "D")

 

DIMENSION DRAWINGS
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 ⟪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  

 

CONFIGURATION AND DIRECTION OF ROTATION Tab. 1
⟪A⟫ ⟪B⟫ ⟪C⟫ 
 
⟪D⟫ ⟪E⟫

The direction of rotation depends from the configuration and from the positioning; ☞  

REPRESENTATION OF BEVEL GEARS Tab. 2
Fig. 1 Fig. 2
Straight bevel gears Spiral bevel gears 'SP'
    
 Spiral gearbox with 2 outputs Spiral gearbox with 3 outputs
    
The spiral (Fig. 2) gearboxes allow high precision, silent operation, and 30% increased output torque. 
             
REPRESENTATION OF REDUCTION & MULTIPLYING RATIO  Tab. 3
Fig. 3 Fig. 4
Example

    

ratio 1:2 
SHAFT ‹1› = 10 RPM
SHAFT ‹2› =   5 RPM
---------------------------------- 
ratio 2:1*    
SHAFT ‹1› =   5 RPM
SHAFT ‹2› = 10 RPM

    

*ratio 2:1: on request; not available in version «D»
The ratio (Fig. 3-4) and configuration is determined by the shaft ‹1› always shown on the opposite side of the fixing bores (✳︎), the others shaft are defined following the clockwise direction .  

REPRESENTATION OF LOADS   Tab. 4
Fig. 5

Fr = max 1500 N  (radial load)        
Fa  = max 150 N (axial load)
T = 90 Nm  (output torque)

  
 

GREASE FITTING

 Tab. 7
Fig. 6 Fig. 7

Gearboxes with 2 outputs

Gearboxes with 3 outputs
   

 

Grease fitting: recommended when the work conditions are not within the parameters listed in Tab. 5 (page 6), to increase the lifetime of the unit, and if its position does not allow easy substitution.

It is necessary, based on the duty cycle, to restore the correct amount of lubricant at variable time intervals (contact our Tech Dept for further information).

The standard position of the grease fitting is shown in Fig. 6 and Fig. 7; it is possible to request a different position by contacting our Tech Dept.

 

 

 COUPLING BUSHES 2 piece bushing to couple gearboxes and shafts.

 
Available bores Ø: 6 - 8 -10 -14.
➜ for more complete information, see sec. "Flexible & semi-rigid shafts,..." in the drop-down menu on the left. 

Support units (with square flange) with o.ring, and ball-bearings.
• Available shafts Ø6, Ø8, Ø10, Ø14, Ø20.
They can be used severally on screws, female screws, shafts or can be combined with our gearboxes, flexible shafts, and our position indicators type “OP”.
➜ for more complete information, see sec. "Flexible & semi-rigid shafts,..." in the drop-down menu on the left. 

Flanged supports with extension shaft for coupling with position indicators.
➜ for more complete information, see sec. "Flexible & semi-rigid shafts,..." in the drop-down menu on the left. 

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OUTPUT TORQUE WITH RATIO  1/1


Efficiency = 90%

 

OUTPUT TORQUE WITH RATIO  1/2

 

 

Efficiency = 90%

 

OUTPUT TORQUE WITH RATIO 2/1

 

Efficiency = 90%