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US 7,041,020 B2Granted
Deflection pulley for a traction mechanism drive
AssigneeIna Walzlager Schaeffler oHG
InventorJohann Singer
Life of this patent
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Abstract
The invention relates to a deflection pulley (1), intended for a traction drive, which includes a rolling-contact bearing as well as a ring body (4). A securing screw (8) as well as a spacer sleeve (9) serve as retaining elements. In order to provide a transport safety system (17), the spacer sleeve (9) is provided with at least one radial inwardly directed projection (18) which radially overlaps a threaded section (20) of the securing screw (8).
Claims20
Deflection pulley (1) associated to a traction drive, comprising:
- a rolling-contact bearing (1) with a non-rotatable inner ring (7) and a rotating outer ring (3), which
- is surrounded by a ring body (4) having an outer surface area (5) for guiding a traction member (6), and
- retaining means such as a fastening screw (8) received in the inner ring (7) for joining by means of a transport safety system (17) the deflection pulley (1) together with a spacer sleeve (9) to form a unitary structure, wherein the spacer sleeve (9) is provided as transport safety system with at least one radial inwardly directed projection (18) which secures the fastening screw (8) in a force-fitting manner, wherein the fastening screw has a screw head, said spacer sleeve having an end surface which is distal to the screw head and formed with a recess, said radial projection being arranged axially inwardly adjacent to the recess so that the end surface has a stepped configuration.
A deflection pulley for a traction drive, comprising:
- a rolling-contact bearing having an inner ring and an outer ring;
- a ring body arranged in surrounding relationship to the rolling-contact bearing and having an outer surface area for guiding a traction member;
- a fastening screw for placement though a bore of the inner ring, said fastening screw having a screw shaft, wherein the fastening screw has a screw head, said spacer sleeve having an end surface which is distal to the screw head and formed with a recess, said radial projection being arranged axially inwardly adjacent to the recess so that the end surface has a stepped configuration;
- and
- a spacer sleeve received in the bore of the inner ring and provided with at least one radial inwardly directed projection to secure the fastening screw in place, said radial projection being so constructed as to be urged against an outer surface area of the screw shaft.
2 more elements
Dependencies are inferred from the claim text.