ASME B5-60:2002 pdf free download

ASME B5-60:2002 pdf free download
ASME B5-60:2002 pdf free download.GENERAL DESCRIPTION AND DEFINITIONS OF TERMS
GENERAL NOTES:
(a) D p nominal diameter of chuck; L p minimum distance of indicator contact point from the jaw face
(b) Five test bars of different diameters shall be used.
(c) The sizes of the test bar diameters shall be proportional to the scroll pitch so that the various scroll positions differ from one test bar to another through an arc of approximately 90 deg of scroll movement.
(d) To ensure the maximum stability of grip, the test bar diameter shall not exceed the diameter of the bore in the chuck.
(e) The contact on the test bars shall be made along the centerline of each jaw.
(f) Test bars shall be made of heat treated steel to withstand the grip of the jaws without deformation, internal or superficial,and shall be round and straight within 0.005 mm (0.0002 in.) for up to 400 mm (16 in.), 0.010 mm (0.0004 in.) for up to 630 mm (24 in.), and 0.025 mm (0.0010 in.) for up to 1 000 mm (40 in.) chuck diameter.
(g) For geometric tests the input torque shall be approximately two-thirds of the maximum allowed.
NOTES:
(1) This test shall be repeated no less than three times and maximum run-out shall be reported.
(2) Determination of Minimum Distance of Indicator Contact Point From the Jaw Face, L, is as follows:
GENERAL NOTES:
(a) Each jaw step shall be tested. A single test piece should be used for each step.
(b) The external diameter of the test piece shall be equal to or smaller than the diameter at which the steps of the jaws have been manufactured.
(c) Test pieces shall be made of heat treated steel to withstand the grip of the jaws without deformation, internal or superficial, and shall be round, straight, and square within 0.005 mm (0.0002 in.) for up to 400 mm (16 in.), 0.010 mm (0.0004 in.) for up to 630 mm (24 in.), and 0.025 mm (0.0010 in.) for up to 1 000 mm (40 in.) chuck diameter.
(d) For geometric tests the input torque shall be approximately two-thirds of the maximum allowed.
NOTE:
(1) This test shall be repeated no less than three times and maximum run-out shall be reported.