Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1988-06-28
1989-06-13
Rosenbaum, Mark
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29132, B21B 2700
Patent
active
048379085
ABSTRACT:
A roll assembly (50) for a fiber drafting machine is positioned on a spindle (51). First and second locking collars (52), (53) on spindle (51) define a space within which is positioned a pair of bearings (40). An annular bearing sleeve (55) is positioned in bearing contact with bearings (40). Bearing sleeve (55) includes a bore (56) from one end to the other which includes a stepped portion (57) defining two spaced-apart shoulders (58), (59). Flange (42) of the two bearings (40) seat flush against the innermost surface of locking collars (52), (53). A flange edge (45) of each of the bearings (40) is positioned in bearing contact with the inner walls of bearing sleeve (55) defining bore (56) to provide a radial bearing surface. Shoulders (58) and (59) abut and bear against shoulder (44) of flange (42) of bearings (40) and provide a thrust bearing surface along the axial length of spindle (51). Bearing (40) is preferably formed of a plastic resin, such as polyimide having a low coefficient of friction and a high temperature resistance. Bearing (40) is integrally formed by compression molding of a suitable resin powder, injection molding, or by machining.
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Brochure No. E-61482, (3/85), published by Du Pont Company.
Cuda Irene
Du Pont de Nemours & Co.
Huntley Donald W.
Rosenbaum Mark
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