Rotary shafts – gudgeons – housings – and flexible couplings for ro – Housing – Flexible housing
Patent
1998-03-12
2000-07-04
Melius, Terry Lee
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Housing
Flexible housing
277571, F16C 126
Patent
active
06083109&
ABSTRACT:
A unitized seal assembly (10) for a rotary shaft (16) having a main section (20) rotatably supported in a housing (14) and a telescopic end (22) axially extendable relative to the main section (20). The seal assembly (10) comprises a generally rigid annular carrier body (28) supporting a flexible annular sealing member (36) and a inner wear sleeve (44) in running engagement with the sealing member (36). The inner wear sleeve (44) includes an annular mounting skirt (54) which is attached to one end of a pleated elastomeric boot (58). The other end of the boot (58) is attached to the telescopic end (22) of the rotating shaft (16). The boot (58) accommodates extension and retraction of the telescopic end (22) of the shaft (16) as it reciprocates during rotation. Therefore, as the shaft (16) rotates during operation, the boot (58) together with the wear sleeve (44) rotate relative to the sealing member (36) and the outer carrier body (28). As the telescopic end (22) shifts axially due to loads imposed upon it during normal operation, the boot (58) expands and contracts, thereby protecting the spline connection (26). The boot (58) may be packed with grease or the like. The boot (58) also protects the sealing member (36) from rapid wear by isolating it from axial forces as the telescopic end (22) reciprocates.
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Binda Greg
Federal-Mogul World Wide Inc.
Melius Terry Lee
LandOfFree
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