DIN 71412 - 1987 Lubricating nipples; cone type


Unit: mm
德标DIN 71412 - 1987 DIN71412 71412DIN Lubricating nipples; cone type
Thread Size
d
M6
keg short
M8
keg short
M10
keg short
d self-forming tapered male thread
Whitworth pipe thread DIN 2999-1
L Form B
Form C
s h13 Form A
Form B / Form C
Core hole for self-forming tapered external thread
S6 S8X1 S10X1
/ / R 1/8
10 10 11
14.3 14.3 15.3
7 9 11
9 9 11
5.6 7.5 9.5
①,The connection with the associated cylindrical internal thread according to DIN 158 is self-sealing; when using the standard thread according to DIN 13 part 1 or the fine thread part 5, a sealant is required. The short version of the external thread - deviating from DIN 158 - has a smallest usable thread length of 4 mm.
②,Conical grease nipples with Whitworth pipe thread are no longer to be used for new designs. The distance to the reference plane is (1.5 ± 0.5) mm.
③,At the choice of the manufacturer.
④,For material with a tensile strength of more than 500 N / mm², the core hole must be made up to a maximum of 0.2 mm larger than specified.
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