for Spring Plungers

GN 249.1 Ball Buttons

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d₁ p6	d₂	d₃ Ball-Ø spring plunger	l₁ ±0,05	l₂	s ≈ Indentation depth of the ball into the recess for d₀ GN 615 GN 615.2 GN 615.3 GN 615.5 GN 815 GN 815.1	GN 615.8	GN 614 GN 614.2 GN 614.5	GN 614.3	GN 614.8	GN 615.1 GN 615.4	GN 616 GN 616.1	w Compression

4	1,8	*	5	1,5	M 4=0,4	M 6=0,4	Ø 3=0,4	Ø 3,5=0,4	Ø 5=0,4	M 5=0,4	M 5=0,4	*
6	2,5	*	8	1,5	M 5=0,7 / M 6=0,5	M 8=0,5	Ø 4=0,7 / Ø 5=0,4	Ø 4=0,7 / Ø 5=0,5	Ø 6=0,5	M 6=0,8 / M 8=0,5	M 6=0,8 / M 8=0,5	*
8	3,5	*	10	2	M 8=0,8	M 10=0,8	Ø 6=0,7	Ø 6=0,8	Ø 8=1,5	M 10=0,8	M 10=1	*
10	4,5	*	12	2	M 10=1	M 12=0,9	Ø 8=0,9	Ø 8=1	Ø 10=0,9	M 12=1	M 12=1	*
12	6	*	14	2,5	M 12=1,4	M 16=1,2	Ø 10=1,4	Ø 10=1,4	Ø 12=1,2	M 16=1,2	M 16=1,5	*
16	7,5	*	18	2,5	M 16=1,7	-	Ø 12=1,7	Ø 12=1,7	-	M 20=1,7	M 20=1,7	*
20	8,5	*	22	3	M 20=1,8	-	-	-	-	M 24=1,6	-	*

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* see spring plunger

Specification

Steel
Hardened and ground

ISO Fundamental Tolerances

RoHS

Information

Ball buttons GN 249.1 are mainly used with spring plungers when low wear and exact positioning are needed.

To achieve optimal locking of the spring plungers, the maximum distance a between the ball button and the spring plunger should not be exceeded. The maximum distance a is calculated from the difference between the compression w of the selected plunger and the indentation depth s of the ball in the recess.

These ball buttons are especially recommended for use with spring plungers with high spring loads.

How to order