Home Indexing and Positioning Elements Indexing plungers GN 817.8

GN 817.8

Indexing plungers

Steel / Stainless Steel, removable, with or without rest position

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GN 817.8

Indexing plungers

Indexing plungers, Steel

GN 817.8-NI

Indexing plungers

Indexing plungers, Stainless Steel

Description

Specification

Types

Type B: without rest position, without lock nut

Type BK: without rest position, with lock nut

Type C: with rest position, without lock nut

Type CK: with rest position, with lock nut

Version in Steel ST

blackened

Threaded body

Lock nut

Version in Stainless Steel NI

Threaded body, AISI 303

Lock nut, AISI 304

Stainless Steel AISI 303

Countersunk screw DIN 7991

Stainless Steel AISI 304

Knob

Plastic (Polyamide PA)

black, matt

Information

Indexing plungers GN 817.8 have been designed such that special versions of the indexing pins can also be made economically in smaller unit quantities.

If reqired, the indexing pins can be machined or made by the user as shown in the drawing above. They are assembled with a countersunk screw and can therefore be assembled several times. All parts are supplied in a non-assembled set.

The indexing plungers type C / CK are used for such applications where the plunger has to stay in its retracted position. To achieve this, the knob is rotated by 90° degrees after being retracted. A notch keeps the plunger in this position.

Operating instruction GN 817.8

Technical information

ISO-Fundamental Tolerances -

Stainless Steel characteristics

Plastic characteristics

GN 817.8

	d₁ Pin -0.02/-0.05 Bore H7	l₁	l₂	d₂	d₃	d₄	d₄ -0.05	d₅	k	l₃	l₄	l₅	l₆	l₇	l₈	l₈ ±0.1	t	A/F	Spring load in N ≈ initial	Spring load in N ≈ end
Code																						Actions
GN 817.8-7-6-B-ST	7	6	8	M12x1.5	23	5	5	M3	20	20	48	22	6	31	17.6	17.6	7	14	6.5	19	34
GN 817.8-7-6-BK-ST	7	6	8	M12x1.5	23	5	5	M3	20	20	48	22	6	31	17.6	17.6	7	14	6.5	19	46
GN 817.8-7-6-C-ST	7	6	8	M12x1.5	23	5	5	M3	20	20	48	22	6	31	17.6	17.6	7	14	6.5	19	36
GN 817.8-7-6-CK-ST	7	6	8	M12x1.5	23	5	5	M3	20	20	48	22	6	31	17.6	17.6	7	14	6.5	19	48
GN 817.8-7-9-B-ST	7	9	11	M12x1.5	23	5	5	M3	20	20	48	22	6	27.5	21.1	21.1	7	14	6	25	34
GN 817.8-7-9-BK-ST	7	9	11	M12x1.5	23	5	5	M3	20	20	48	22	6	27.5	21.1	21.1	7	14	6	25	46
GN 817.8-7-9-C-ST	7	9	11	M12x1.5	23	5	5	M3	20	20	48	22	6	27.5	21.1	21.1	7	14	6	25	37
GN 817.8-7-9-CK-ST	7	9	11	M12x1.5	23	5	5	M3	20	20	48	22	6	27.5	21.1	21.1	7	14	6	25	49
GN 817.8-8-8-B-ST	8	8	10	M16x1.5	28	6	6	M4	24	25	58	26	8	39	20.6	20.6	8	17	8.5	26	72
GN 817.8-8-8-BK-ST	8	8	10	M16x1.5	28	6	6	M4	24	25	58	26	8	39	20.6	20.6	8	17	8.5	26	88
GN 817.8-8-8-C-ST	8	8	10	M16x1.5	28	6	6	M4	24	25	58	26	8	39	20.6	20.6	8	17	8.5	26	72
GN 817.8-8-8-CK-ST	8	8	10	M16x1.5	28	6	6	M4	24	25	58	26	8	39	20.6	20.6	8	17	8.5	26	92
GN 817.8-8-12-B-ST	8	12	14	M16x1.5	28	6	6	M4	24	25	58	26	8	34	25.6	25.6	8	17	8.5	28	67
GN 817.8-8-12-BK-ST	8	12	14	M16x1.5	28	6	6	M4	24	25	58	26	8	34	25.6	25.6	8	17	8.5	28	87
GN 817.8-8-12-C-ST	8	12	14	M16x1.5	28	6	6	M4	24	25	58	26	8	34	25.6	25.6	8	17	8.5	28	73
GN 817.8-8-12-CK-ST	8	12	14	M16x1.5	28	6	6	M4	24	25	58	26	8	34	25.6	25.6	8	17	8.5	28	93
GN 817.8-10-12-B-ST	10	12	14	M16x1.5	28	7.5	7.5	M4	24	30	58	26	8	39.2	25.4	25.4	8	17	9.5	38	76
GN 817.8-10-12-BK-ST	10	12	14	M16x1.5	28	7.5	7.5	M4	24	30	58	26	8	39.2	25.4	25.4	8	17	9.5	38	94
GN 817.8-10-12-C-ST	10	12	14	M16x1.5	28	7.5	7.5	M4	24	30	58	26	8	39.2	25.4	25.4	8	17	9.5	38	81
GN 817.8-10-12-CK-ST	10	12	14	M16x1.5	28	7.5	7.5	M4	24	30	58	26	8	39.2	25.4	25.4	8	17	9.5	38	86
GN 817.8-12-15-B-ST	12	15	17	M20x1.5	33	9	9	M6	28.5	35	71.5	33	10	47.3	31.3	31.3	13.5	22	11.5	40	145
GN 817.8-12-15-BK-ST	12	15	17	M20x1.5	33	9	9	M6	28.5	35	71.5	33	10	47.3	31.3	31.3	13.5	22	11.5	40	181
GN 817.8-12-15-C-ST	12	15	17	M20x1.5	33	9	9	M6	28.5	35	71.5	33	10	47.3	31.3	31.3	13.5	22	11.5	40	158
GN 817.8-12-15-CK-ST	12	15	17	M20x1.5	33	9	9	M6	28.5	35	71.5	33	10	47.3	31.3	31.3	13.5	22	11.5	40	194

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