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

Double Tube Linear Actuators GN 491: Steel, with Right or Left Hand Thread, Single Slider
Mounting Options Overview of Types Operating Instruction GN 491 / GN 492 Additional Information / Load Data

Product description

In addition to the standard stroke lengths of the double tube linear actuators GN 491 specified in the table, any stroke within the maximum stroke lengths is available.

In order to measure the movement or the position of the slider, digital position indicators can be attached.

Specification

  • Guide tubes DIN 2391
    Steel, chrome plated finishSCR
  • End pieces / slider
    Aluminum
    • Powder coated
      Black, RAL 9005, textured finish
    • Mounting surfaces
      Machined, plain finish
  • Trapezoidal thread spindle
    Steel, plain finish
    • Ball-bearing
    • Position accuracy ±0.2 mm / 300 mm stroke
  • Lead nut
    Gunmetal
  • Socket cap screws DIN 912
    Steel, zinc plated
  • Hex nuts DIN 985
    Steel, zinc plated
    Self-locking via polyamide ring

RoHS

Accessory

Installation Kits GN 491.1

On request

  • Version in stainless steel
  • Tube with longitudinal scale
  • Right-hand thread, shaft journal at both ends
  • Left-hand thread, shaft journal at one end
  • Left-hand thread, shaft journal at both ends
GN 491 Steel Double Tube Linear Actuators, with Right or Left Hand Thread, Single Slider sketch
Hide technical drawing
GN 491 Steel Double Tube Linear Actuators, with Right or Left Hand Thread, Single Slider sketch

Part Options / Table

Type

R1Right-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
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Metric

Dimensions in: Inch (change to Metric)
d1l1
Stroke
(adjustment travel of the slider)
Standard lengths
Max.
stroke		Threaded
spindle		bd2d3 **d4 ***d5d6
For
screw
DIN 912
0.713.945.917.879.8416.54TR10x31.100.24-M 50.21--
1.183.945.917.8711.8159.06TR14x41.970.31M 6M 60.260.35M 5
1.573.945.917.8711.81104.33TR20x42.360.47M 8M 80.330.53M 6
1.973.945.917.8711.81108.66TR20x42.830.47M 10M 80.330.53M 8
2.3611.8115.7519.69-107.87TR25x53.150.55M 10M 100.410.53M 8
Show / Hide columns
Dimensions in: Inch (change to Metric)
d1d7
For
screw
DIN 912		h1h2h3h4h5l2
Total
length		l3l4m1m2m3m4
0.71--1.101.140.040.570.033xb+l13.190.632xb+l12.68-0.79
1.180.41M 62.052.130.081.060.033xb+l15.120.632xb+l14.493.621.18
1.570.53M 82.362.480.121.240.043xb+l17.090.672xb+l16.305.201.54
1.970.53M 82.832.990.161.500.053xb+l18.110.712xb+l17.245.911.81
2.360.65M 103.393.460.081.730.053xb+l19.450.752xb+l18.507.282.17
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Dimensions in: Inch (change to Metric)
d1m5m6m7m8m9s
Hex		Parallel key
DIN 6885		Installation kitPosition
indicator		Handwheel
0.71-0.790.71-0.180.31A2x2x12GN 491.1EN 955-GN 9234
1.181.381.181.650.370.470.39A2x2x12GN 491.1EN 954EN 9054GN 9234
1.571.501.542.440.490.470.51A4x4x12GN 491.1EN 953EN 9053GN 9234
1.971.971.812.440.510.590.51A4x4x12GN 491.1EN 953EN 9053GN 9234
2.362.362.172.910.550.650.67A5x5x16GN 491.1EN 953EN 9053GN 9234
*Usually not available from stock

**Usable thread depth on both sides min. 2 x d3

***Usable thread depth min. 1.5 x d4

Build & Price
Diameter d1
Stroke l1
Type




Material

Diameter d1
Stroke l1
Type




Material

Mounting Options of 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
Sketch GN 491 horizontal Sketch GN 491 vertical

Mounting Options at the Slider

Mounting with screws for thread d4 or bore d5
Sketch GN 491 slider

Assembly of Position Indicator and Handwheel

Usage of installation kit, position indicator and handwheel
Sketch GN 491 handwheel

Load Capacity
Technische Beschreibung
Show / Hide columns
dFxFy
l = 500 mm
19.69
l = 1000 mm
39.37
l = 1500 mm
59.06		Mx
in Nm		My
in Nm		Mz
in Nm
1895.54 lbf (425 N)48.33 lbf (215 N)24.73 lbf (110 N)-223540
30191 lbf (850 N)247 lbf (1100 N)202 lbf (900 N)124 lbf (550 N)100100100
40247 lbf (1100 N)832 lbf (3700 N)629 lbf (2800 N)315 lbf (1400 N)150140170
50427 lbf (1900 N)866 lbf (3850 N)540 lbf (2400 N)472 lbf (2100 N)180220290
60607 lbf (2700 N)1551 lbf (6900 N)1281 lbf (5700 N)1147 lbf (5100 N)320350500
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dFz
l = 500 mm
19.69
l = 1000 mm
39.37
l = 1500 mm
59.06		Mx
in Nm		My
in Nm		Mz
in Nm
1823.60 lbf (105 N)17.98 lbf (80 N)-223540
30135 lbf (600 N)78.68 lbf (350 N)33.72 lbf (150 N)100100100
40472 lbf (2100 N)135 lbf (600 N)40.47 lbf (180 N)150140170
50697 lbf (3100 N)157 lbf (700 N)44.96 lbf (200 N)180220290
601416 lbf (6300 N)629 lbf (2800 N)80.93 lbf (360 N)320350500

Selected Part

Total (net)
Can$987.29
Available within 1-2 weeks
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Please note our quantity discounts (Canadian Dollars).
MinMaxPrice
14Can$987.29
59Can$905.02
1024Can$822.75
≥ 25Can$740.47
Prop 65: Not compliant
WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
RoHS: Compliant
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Weight: 1.411 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 1-800-397-6993

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Need Help?

Our service team is available from Monday to Friday between 8:00 AM and 5:30 PM Eastern Time: 800-397-6993

Special Requests | Contact our sales team

GN 491-18-100-R1-SCRGN 491-18-100-R2-SCRGN 491-18-100-L1-SCRGN 491-18-100-L2-SCRGN 491-18-150-R1-SCRGN 491-18-150-R2-SCRGN 491-18-150-L1-SCRGN 491-18-150-L2-SCRGN 491-18-200-R1-SCRGN 491-18-200-R2-SCRGN 491-18-200-L1-SCRGN 491-18-200-L2-SCRGN 491-18-250-R1-SCRGN 491-18-250-R2-SCRGN 491-18-250-L1-SCRGN 491-18-250-L2-SCRGN 491-30-100-R1-SCRGN 491-30-100-R2-SCRGN 491-30-100-L1-SCRGN 491-30-100-L2-SCRGN 491-30-150-R1-SCRGN 491-30-150-R2-SCRGN 491-30-150-L1-SCRGN 491-30-150-L2-SCRGN 491-30-200-R1-SCRGN 491-30-200-R2-SCRGN 491-30-200-L1-SCRGN 491-30-200-L2-SCRGN 491-30-300-R1-SCRGN 491-30-300-R2-SCRGN 491-30-300-L1-SCRGN 491-30-300-L2-SCRGN 491-40-100-R1-SCRGN 491-40-100-R2-SCRGN 491-40-100-L1-SCRGN 491-40-100-L2-SCRGN 491-40-150-R1-SCRGN 491-40-150-R2-SCRGN 491-40-150-L1-SCRGN 491-40-150-L2-SCRGN 491-40-200-R1-SCRGN 491-40-200-R2-SCRGN 491-40-200-L1-SCRGN 491-40-200-L2-SCRGN 491-40-300-R1-SCRGN 491-40-300-R2-SCRGN 491-40-300-L1-SCRGN 491-40-300-L2-SCRGN 491-50-100-R1-SCRGN 491-50-100-R2-SCRGN 491-50-100-L1-SCRGN 491-50-100-L2-SCRGN 491-50-150-R1-SCRGN 491-50-150-R2-SCRGN 491-50-150-L1-SCRGN 491-50-150-L2-SCRGN 491-50-200-R1-SCRGN 491-50-200-R2-SCRGN 491-50-200-L1-SCRGN 491-50-200-L2-SCRGN 491-50-300-R1-SCRGN 491-50-300-R2-SCRGN 491-50-300-L1-SCRGN 491-50-300-L2-SCRGN 491-60-300-R1-SCRGN 491-60-300-R2-SCRGN 491-60-300-L1-SCRGN 491-60-300-L2-SCRGN 491-60-400-R1-SCRGN 491-60-400-R2-SCRGN 491-60-400-L1-SCRGN 491-60-400-L2-SCRGN 491-60-500-R1-SCRGN 491-60-500-R2-SCRGN 491-60-500-L1-SCRGN 491-60-500-L2-SCR

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1-800-397-6993 sales@jwwinco.ca
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Important: Pricing

Attention Valued Customer,

Beginning February 16, 2026, we will implement a price adjustment. Some items will have a price decrease, while others will increase. The adjustment helps ensure our commitment to providing our customers with the best products and services.

We will honor current published prices through February 15, 2026.

Customers with pricing agreements will not be effected until annual pricing is reviewed.