F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
74/244
F16H 55/49 (2006.01) F16H 15/10 (2006.01)
Patent
CA 1116440
DRIVE DISC-PULLEY ASSEMBLY ABSTRACT A sheet metal drive disc-pulley assembly adapted for driving rotation by a V-belt to drive a friction wheel such as that in a lawn mower or other mechanism using a drive assembly. Two of three, coaxial, circular pieces of sheet metal define a bearing pocket, which axially and radially locates a bearing unit, and a V-belt receiving groove which, in the preferred embodiment, is spaced outwardly and radially aligned with the bearing pocket for proper resistance to belt tension. The marginal edge of the gener- ally planar, third piece is bent and clamped around the periphery of a conical brace extending from the flared edge of the V-belt groove on one of the first two pieces to form a radially extending friction wheel engaging disc. Either the third piece, or a fourth circular piece of sheet metal clamped between the third piece and conical brace, may radially locate a second, axially self-locating bearing unit which is coaxial and spaced an axial distance from the first bearing unit to prevent preloading of the assembly and to reduce rotational wobble due to any bearing eccentricities or slight bearing misalignment. The bearing units preferably include internal seals. An external seal retained by the bearing pocket may also be included. -1-
330052
Van Der Meulen Douglas J.
Weis Siegfried K.
Borden Ladner Gervais Llp
Frost (c. L.) & Son Inc.
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