Laboratory Tender, Lab Catalog Description and Lab Specifications
Worm and Roller Type
These bearings assistin reducing sliding friction between the worm and sector.
This design provides a variable steering ratio to permit faster and more efficient steering.
As the steering wheel turns the worm, the roller turns with it, forcing the sector and pitman arm shaft to rotate.
The worm and rotter steering gear is quite similar to the worm and
sector, except a roller is supported by ball or rotter bearings within
the sector mounted on the pitman arm shaft.
The hourglass shape of the worm, which tapers from both ends to the
center, affords better contact between the worm and roller in all
positions.
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