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US 6,668,533 B2Granted
Reel mower and bearing assembly
AssigneeAmerican Lawn Mower Co.
InventorsRichard W. Beckman, Robert E. Kersey
Life of this patent
Estimating the term…
Abstract
A reel mower includes a bearing system having a spring that biases a plurality of ball bearings toward a cone. The cone is fixedly mounted on the reel shaft. The cone can be conically constructed, and used in combination with a washer that is fixedly attached to the reel shaft.
Claims19
A reel mower comprising a frame,
- a reel having a shaft with opposite ends, and
- a bearing system disposed between at least one end of the shaft and the frame,
- the bearing system comprising
- a cone fixedly mounted on the shaft so as to prohibit rotational and axial movement on thc shaft and a bearing cup fixed to the frame and opening toward the cone, the cone and the cup being concentric, the cone having a tapered surface facing the bearing cup, and
- a plurality of ball bearings in contact with the tapered surface and the cup.
2 more elements
A reel mower comprising
- a frame,
- a reel rotatably coupled to the frame, the reel having a central shaft with opposite ends, and
- a bearing configured to support the reel for rotatable movement relative to the frame, the bearing comprising
- a cone fixedly mounted on the shaft so as to prohibit rotational and axial movement on the shaft,
- a bearing cup fixed to the frame and configured to concentrically receive one end of the shaft and the cone,
- a plurality of ball bearings disposed between the bearing cup and the cone, and
- a spring disposed between the bearing cup and the ball bearings and configured to bias the ball bearings toward the cone.
4 more elements
A method of constructing a bearing, comprising the steps of
- providing a shaft,
- press-fitting a cone on the shaft such that the cone is prohibited from rotationally and axially movement relative to the shaft,
- providing a frame having a bearing cup,
- positioning a spring in the bearing cup,
- positioning a plurality of ball bearings adjacent the spring, and
- fitting thc cone-bearing shaft in the bearing cup such that the cone is positioned adjacent the plurality of ball bearings and the plurality of ball bearings is biased by the spring toward the cone.
3 more elements
Dependencies are inferred from the claim text.