with Left or Right Hand Thread, Single Slider

GN 491 Double Tube Linear Actuators

Double Tube Linear Actuators GN 491 thumbnail

Double Tube Linear Actuators GN 491 sketch

Type

R1	Right hand thread, shaft journal at one end
R2*	Right hand thread, shaft journal at both ends
L1*	Left hand thread, shaft journal at one end
L2*	Left hand thread, shaft journal at both ends

Show filter

d₁	l₁ Travel (Adjustable stroke of the slider) Standard length				max. travel	Shaft thread	b	d₂	d₃ **	d₄ ***	d₅	d₆	for screw DIN 912

18	100	150	200	250	420	TR10x3	28	6	-	M 5	5,3	-	-
30	100	150	200	300	1500	TR14x4	50	8	M 6	M 6	6,5	9	M 5
40	100	150	200	300	2650	TR20x4	60	12	M 8	M 8	8,5	13,5	M 6
50	100	150	200	300	2760	TR20x4	72	12	M 10	M 8	8,5	13,5	M 8
60	300	400	500	-	2740	TR25x5	80	14	M 10	M 10	10,5	13,5	M 8

Filter combination produces no result.

d₁	d₇	for socket cap screw DIN 912	h₁	h₂	h₃	h₄	h₅	l₂ Total length	l₃	l₄	m₁	m₂	m₃	m₄

18	-	-	28	29	1	14,5	0,75	3xb+l1	81	16	2xb+l1	68	-	20
30	10,5	M 6	52	54	2	27	0,85	3xb+l1	130	16	2xb+l1	114	92	30
40	13,5	M 8	60	63	3	31,5	1,05	3xb+l1	180	17	2xb+l1	160	132	39
50	13,5	M 8	72	76	4	38	1,2	3xb+l1	206	18	2xb+l1	184	150	46
60	16,5	M 10	86	90	4	45	1,35	3xb+l1	240	19	2xb+l1	216	185	55

Filter combination produces no result.

d₁	m₅	m₆	m₇	m₈	m₉	s Hexagon	Parallel key DIN 6885	Installation kit	Position indicator		Handwheel

18	-	20	18	-	4,5	8	A2x2x12	GN 491.1	GN 955	-	GN 923.18
30	35	30	42	9,5	12	10	A2x2x12	GN 491.1	GN 954	GN 9054	GN 923.30
40	38	39	62	12,5	12	13	A4x4x12	GN 491.1	GN 953	GN 9053	GN 923.40 / GN 924.40
50	50	46	62	13	15	13	A4x4x12	GN 491.1	GN 953	GN 9053	GN 924.50
60	60	55	74	14	16,5	17	A5x5x16	GN 491.1	GN 953	GN 9053	GN 924.60

Filter combination produces no result.

* usually not available from stock** usable depth of thread from both sides min. 2 x d₃*** usable depth of thread min. 1,5 x d₄

Specification

Guide tubes DIN 2391
Steel, chrome-platedSCR

End pieces / Slider
Aluminum

Powder coated
Black, RAL 9005, textured finish
Fixing surface / mounting surface
Machined, blank

Spindle with trapezoidal thread

Steel, blank
with ball-bearing
Positioning accuracy ±0,2 mm / 300 mm travel

Follower nut
Gun metal

Cylinder head screws DIN 912
Steel, zinc plated

Hexagon nuts DIN 985
Steel, zinc plated

Operating instruction GN 491 / GN 492

RoHS

Accessory

Installation Kits (for Position Indicators) GN 491.1

Information

In addition to the standard travel lengths specified in the above table for the double tube linear actuator GN 491 any length inside the maximum travel length is available.

In order to measure the movement and positioning of the sliders, digital position indicators can be added.