Device for transforming a rotational motion into a linear motion

Details Device for transforming a rotational motion into a linear motion Device for transforming a rotational motion into a linear motion

1977-08-15

1979-11-13

Scott, Samuel

Machine element or mechanism

Gearing

Teeth

74 25, 744248R, F16H 2522

Patent

active

041739078

ABSTRACT:
A device for transforming a rotational motion into a linear motion comprising a shaft and a sleeve enclosing the shaft, the shaft and sleeve adapted for relative axial movement upon relative rotation of the shaft and sleeve. A plurality of rolling bodies between the shaft and the sleeve arranged in a closed track with a load carrying part in the form of a spiral line and a relieved recirculation part. The sleeve includes an inner portion of flexibly deformable material suited for contracting the rolling bodies and have a helical race track therefor and an outer portion provided with a recirculation channel for the rolling bodies. The shaft which is enclosed by the sleeve has a smooth surface and the rolling bodies are urged against the shaft by means of the inner elastic portion of the sleeve.

REFERENCES:
patent: 3327551 (1967-06-01), Prueter
patent: 3534626 (1970-10-01), Elliott
patent: 4074587 (1978-02-01), Brusasco

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