Plural bearing and sheave assembly

Details Plural bearing and sheave assembly Plural bearing and sheave assembly

1976-09-20

1978-02-21

Blix, Trygve M.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

114109, 308 18, 308189R, B66D 304

Patent

active

040748928

ABSTRACT:
A plurality of adjacent sheaves are disposed around a common shaft. Each sheave carries a plurality of ball bearings engaged between an inner race of the sheave and the shaft. The ball bearings in one sheave are exposed on one side and bear against an adjacent sheave around the shaft such that friction between a sheave and the shaft and between adjacent sheaves is minimized.

REFERENCES:
patent: 525560 (1894-09-01), Marshall
patent: 811254 (1906-01-01), Smith
patent: 2260345 (1941-10-01), Smith et al.
patent: 3125126 (1964-03-01), Engels
patent: 3528645 (1970-09-01), Harken

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