Home Indexing and Positioning Elements Spring plungers GN 249.1

GN 249.1

Ball buttons

for spring plungers

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Description

Specification

Steel

hardened and ground

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.

Technical information

ISO-Fundamental Tolerances

GN 249.1

	d₁ p6	d₂	d₃ Ball-Ø spring plunger	l₁ ±0.05	l₂	s≈ for GN 615 GN 615.2 GN 615.3 GN 615.5 GN 815 GN 815.1	s≈ for GN 615.8 GN 615.9	s≈ for GN 614 GN 614.2 GN 614.5	s≈ for GN 614.3	s≈ for GN 614.8	s≈ for GN 615.1 GN 615.4	s≈ for GN 616 GN 616.1	w Compression
Code															Actions
GN 249.1-4-1,8	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	*	1
GN 249.1-6-2,5	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	*	2
GN 249.1-8-3,5	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	*	4
GN 249.1-10-4,5	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	*	7
GN 249.1-12-6	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	*	12
GN 249.1-16-7,5	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	*	27
GN 249.1-20-8,5	20	8.5	*	22	3	M 20=1.8	-	-	-	-	M 24=1.6	-	*	52

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