Double tube linear actuators, single slider

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GN 491 / Double Tube Linear Actuators with Right or Left Hand Thread, Single Slider

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

see also...
• Mounting facilities of the end pieces
• Technical information / Load data
• Double tube linear actuators GN 492 (with double slider)
• Handwheels for linear actuators
• Position indicators GN 953 / GN 954
• Position indicators GN 9053 / GN 9054

How to Order

How to order	1	h₁
	2	l₁
	3	m₁
	4	Type

Specification

SCR • Guide tube DIN 2391
Steel, chrome-plated
• End pieces / Slider
Aluminum
- plastic 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 / Hexagon nuts DIN 985
Steel, zinc plated
• RoHS compliant

Accessory

• Installation kits GN 491.1 (for position indicators)

Dimensions


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

d₁	d₇		h₁	h₂	h₃	h₄	h₅	l₂	l₃	l₄	m₁	m₂	m₃	m₄
		for screw DIN 912						Total length
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	88	2	44	1.35	3xb+l₁	240	19	2xb+l1	216	185	55

d₁	m₅	m₆	m₇	m₈	m₉	s Hexagon	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

*** usable depth of thread min. 1.5 x d₄ ** usable depth of thread from both sides min. 2 x d₃ * normally not available from stock

Mounting Facilities of the End Pieces

Horizontal
with screws for thread d₄ or bore d₅ Vertical
From outside, with screws for thread d₃
From inside, with screws for bore d₆
From inside, with screws for bore d₅ / d₇

Mounting Facilities at the Slider

Mounting with screws for thread d₄ or bore d₅

Assembly of Position Indicator and Handwheel

Usage of installation kit, position indicator and handwheel

Data to be displayed: 30; 45; 60

Part Number
491-18-100-R1-SCR
491-18-150-R1-SCR
491-18-200-R1-SCR
491-18-250-R1-SCR
491-30-100-R1-SCR
491-30-150-R1-SCR
491-30-200-R1-SCR
491-30-300-R1-SCR
491-40-100-R1-SCR
491-40-150-R1-SCR
491-40-200-R1-SCR
491-40-300-R1-SCR
491-50-100-R1-SCR
491-50-150-R1-SCR
491-50-200-R1-SCR
491-50-300-R1-SCR
491-60-300-R1-SCR
491-60-400-R1-SCR
491-60-500-R1-SCR

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	Length l1	Diameter d1
595.72 €	1	Available	7 Days	100	18
613.92 €	1	Available	7 Days	150	18
632.18 €	1	Available	7 Days	200	18
650.40 €	1	Available	7 Days	250	18
656.70 €	1	Available	7 Days	100	30
675.66 €	1	Available	7 Days	150	30
694.56 €	1	Available	7 Days	200	30
732.40 €	1	Available	7 Days	300	30
762.46 €	1	Available	7 Days	100	40
785.30 €	1	Available	7 Days	150	40
808.16 €	1	Available	7 Days	200	40
853.86 €	1	Available	7 Days	300	40
901.58 €	1	Available	7 Days	100	50
926.08 €	1	Available	7 Days	150	50
950.58 €	1	Available	7 Days	200	50
999.56 €	1	Available	7 Days	300	50
1,449.88 €	1	Available	7 Days	300	60
1,515.36 €	1	Available	7 Days	400	60
1,580.82 €	1	Available	7 Days	500	60