B - Operations – Transporting – 24 – B
Patent
B - Operations, Transporting
24
B
51/161, 29/19
B24B 45/00 (2006.01) B23B 31/40 (2006.01) B27B 5/32 (2006.01) F16D 1/06 (2006.01)
Patent
CA 1313313
ABSTRACT OF THE DISCLOSURE A chucking device for portable grinders is part of an adjusting nut (17). The nut is screwed on a threaded step (13) of a driving spindle (10) to clamp a grinding disk (15). The adjusting nut supports a non-rotatable, axially shiftable chucking wheel (21) which is axially supported by support bodies (50). The support bodies include an outer race (51) for balls (24). The chucking wheel is provided with axially directed pins (36) acting as steps for the balls. An annular actuating element (28) is arranged between the chucking wheel and the adjusting nut and is provided with an inner race (32) and radial pins (35) projecting into the inner race and pressing via springs (38) against the balls (24). The inner race includes spherical recesses (33) for receiving the balls when radial load of the supporting bodies and axial load of the chucking wheel is relieved.
558250
Fetherstonhaugh & Co.
Robert Bosch Gmbh
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