JB/T 10117.4-1999 Internal taper holes in machine tool fixture parts and components

JB/T 10117.4-1999 This standard specifies the internal taper center with Morse taper No. 4 or No. 5. This standard is applicable to the front center of a lathe with a pneumatic or hydraulic tailstock. This standard was first published in 1983 as JB 3390-83 and first revised in 1991 as GB/T 12881-91. JB/T 10117.4-1999 Internal taper center for machine tool fixture parts and components JB/T10117.4-1999 Standard download decompression password: www.bzxz.net

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Machinery Industry Standard of the People's Republic of China
Parts and components of jigs and fixtures
The parts and units of jigs and fixtures1999-08-06Promulgated
National Machinery Industry Bureau
Implementation on 2000-01-01
Machinery Industry Standard of the People's Republic of China
Parts and components of jigs and fixtures
Inner taper bole centre
The parts and units of jigs and fixturesIner taper bole centre
The technical standard specifies the inner saw hole items with Morse taper of No. 4 and No. 5. The standard applies to the front end of pneumatic or hydraulic Kunku car. 2 Referenced Standards
JBT10117.4-1999
The texts contained in the following documents constitute the provisions of this standard through reference in the technical standards. When this standard is revised, the versions shown are valid. All standards will be revised. Parties using this standard should explore the possibility of using the latest versions of the following standards. GBT1298--[986 Technical conditions for high-efficiency tool steels GBT443--! 996 Self-ignition cone for bottom and T-tool tree JB/T8044—1999
3 Dimensions
Technical requirements for machine tool parts and components
Dimensions are shown in the figure below,
National Machinery Industry Council 1999-0-(06 approved 302
2000-01-01 implementation
Nominal diameter
(workpiece diameter)
14 -24
·30-40
38 ~ 48
46 - 56
SII- H5
70 - B5
80 - 95
4 Technical conditions
英民心雄
4.1 Material: T8 according to GB/T1298.
JBFF10117,4-1999
4.2 Heat treatment: 55-60HRC, taper handle 40-45HRC, 4.3 Other technical conditions according to IR/T8044, 5 Marking
s.1 Marking example:
Mohs certificate No. 5 nominal diameter 38~48mm internal hole tip: tip 538-48JB/T10117.4—1999
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