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US 3,945,694 AGranted
Toolhead
AssigneeCincinnati Milacron-Heald Corporation
InventorBernard D. Vaillette
Life of this patent
Estimating the term…
Abstract
A toolhead having a spindle mounted in axially spaced bearings wherein one of the bearings is allowed to slide axially during dynamic effects on the bearings or thermal expansion and contraction of the spindle, the axial movement being made possible by the provision of rows of barrel-shaped rollers.
Claims5
A toolhead comprising
- a. a housing having a bore extending therethrough,
- b. a spindle rotatably mounted in the bore and extending therefrom,
- c. a first anti-friction bearing at one end of the spindle between the spindle and the bore, the bearing having an outer race fixed in the bore, an inner race fixed on the spindle, and rolling elements therebetween,
- d. a second anti-friction bearing at the other end of the spindle between the spindle and the bore, the bearing having an outer race, an inner race, and rolling elements therebetween,
- e. a sleeve mounted in the bore for sliding movement in the axial direction, the outer race of the second anti-friction bearing being fixed in the sleeve and the corresponding inner race being fixed to the spindle, and
- f. two axially-spaced rows of rolling elements residing between the sleeve and the bore to allow the said sliding movement, each row consisting of a plurality of rolling elements in the form of barrel-shaped rollers, the axis of each roller being tangential to a circle concentric with the spindle.
3 more elements
Dependencies are inferred from the claim text.