Spinea 'B' Series Bearing Reducer

Spinea TwinSpin 'B' Series

Spinea "B" Series Zero Backlash High Reduction Ratio Bearing Reducer especially designed for B Axis of machine tools.  Single Size 240mm O/D, Ratios from 87:1 to 153:1, Repeated Peak Torques to 4,050Nm


The Twinspin bearing reducers are high precision reducers based on a new reduction mechanism and a new design of radial-axial output bearing.  As a result, they represent a new generation of power transmission systems.  The notion "bearing reducers"  indicates the full integration of a high precision trochoidal reduction gear and a radial-axial bearing in a single unit.


The TS bearing reducers are design for applications requiring ...

• High Reduction Ratio
• Zero Backlash
• High Kinematic Accuracy
• Low Lost Motion
• High Moment Capacity
• High Stiffness

... and a compact design with a limited installation zone and low mass

Spinea TwinSpin 'B' Series Range

One Frame Size


240mm O/D


Three Different Ratios


87, 121 & 153 


Two Input Versions


Smooth Shaft and Special Custom Shafts

Principle of Operation - Step One - Input Shaft @ 0 Degrees

The basic components of the TS bearing reducer are shown below ...

CASE

... at the same time incorporates the high capacity precision radial-axial output bearings integrated in the reducer


SEALING

... on the output flange side prevents the reducer from intenal comtamination and/or bearing lubricant leakage from the reducer

Principle of Operation - Step Two - Input Shaft @ 90 Degrees

FLANGES

... input and output flanges are fixed together by fixing bolts and rotate at reduced speed in the radial-axial output bearing relative to the case

Principle of Operation - Step Three - Input Shaft @ 180 Degrees

INPUT SHAFT

... high speed member of the reduction mechanism carried by roller bearings in the flanges.  Bearing raceways are ground directly on the shaft and the flanges.  The shaft eccentrics rotationally support the trochoidal gears via roller bearings

Principle of Operation - Step Four - Input Shaft @ 270 Degrees

TROCHOIDAL GEARS

... their almost 50% simultaneously meshing trochoidal teeth transmit a very high torque which ensures powerful and backlash free performance of the reducer

Principle of Operation - Step Five - Input Shaft @ 360 Degrees

TRANSFORMATION MEMBER

... transforms the planetary motion of the trochoidal gears to the rotary motion of a pair of flanges

Spinea TwinSpin CAD Drawings

2D CAD Drawings of the TwinSpin range of high precision bearing reducers are available on request.

Please CLICK HERE to request the particular drawing you require.

Thank you