Products | J.W. Winco Standard Parts

GN 351.1 Vibration Isolation Mounts Cylindrical Type, with Steel Components


Product description


GN 351.1 vibration isolation mounts, also known as vibration mounts, anti-vibration mounts, vibration bobbins or rubber bumpers, are suitable for the elastic mounting of machine units such as motors, compressors and pumps.

These rubber mounts are simple and economical construction elements. Their resilience and their broad range of different sizes and dimensions allow these mounts to be used in many applications that require vibration isolation.

For metric versions see GN 351.


Mount body
Natural rubber (NR)
  • Black
  • Vulcanized to the cover plate
  • Shore hardness A ±5

Cover plate, 2 threaded studs
Steel, zinc plated, molded-in

RoHS compliant

On request

Versions with shore hardness A ±5
  • Soft40
  • Hard70

Specials, with certain minimum quantities

Technical drawing

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GN 351.1 Vibration Isolation Mounts, Cylindrical Type, with Steel Components sketch

Part Options / Table

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Dimensions in: Inch (change to Metric)
Length lsSpring rate ≈
Hardness 55
Max. load
Hardness 55
Max. deflection ≈
0.390.518 x 320.510.04205 lbf/in (35.90 N/mm)20.00 lbf (88.96 N)0.18
0.550.5110 x 320.390.0490.97 lbf/in (15.93 N/mm)13.00 lbf (57.82 N)0.28
0.630.518 x 320.510.05440 lbf/in (77.05 N/mm)44.00 lbf (195.72 N)0.31
0.750.751/4 x 200.510.08296 lbf/in (51.83 N/mm)58.00 lbf (257.99 N)0.37
0.980.511/4 x 200.510.081043 lbf/in (182.65 N/mm)154 lbf (685.02 N)0.49
0.980.751/4 x 200.630.08684 lbf/in (119.78 N/mm)183 lbf (814.02 N)0.49
0.980.755/16 x 180.630.081220 lbf/in (213.65 N/mm)183 lbf (814.02 N)0.49
0.980.981/4 x 200.510.08670 lbf/in (117.33 N/mm)168 lbf (747.30 N)0.49
0.980.985/16 x 180.630.08616 lbf/in (107.87 N/mm)151 lbf (671.68 N)0.49
1.260.751/4 x 200.510.081886 lbf/in (330.28 N/mm)283 lbf (1258.84 N)0.63
1.260.755/16 x 180.630.081425 lbf/in (249.55 N/mm)280 lbf (1245.50 N)0.63
1.260.985/16 x 180.630.081090 lbf/in (190.88 N/mm)273 lbf (1214.36 N)0.63
1.380.985/16 x 180.630.081344 lbf/in (235.37 N/mm)336 lbf (1494.60 N)0.67
1.500.755/16 x 180.630.082615 lbf/in (457.95 N/mm)523 lbf (2326.41 N)0.75
1.500.983/8 x 160.630.081200 lbf/in (210.15 N/mm)300 lbf (1334.46 N)0.75
1.570.983/8 x 160.630.082000 lbf/in (350.25 N/mm)500 lbf (2224.11 N)0.79
1.570.985/16 x 180.630.081710 lbf/in (299.46 N/mm)336 lbf (1494.60 N)0.79
2.010.753/8 x 161.140.084093 lbf/in (716.79 N/mm)804 lbf (3576.37 N)0.98
2.011.613/8 x 160.630.081955 lbf/in (342.37 N/mm)576 lbf (2562.17 N)0.98
2.441.261/2 x 130.870.082582 lbf/in (452.17 N/mm)762 lbf (3389.54 N)1.18
3.112.241/2 x 131.260.1213282 lbf/in (2325.85 N/mm)2607 lbf (11596.51 N)1.38

Build & Price

Outside diameter d1
Height h
Thread d2

Selected Part

Total US Dollars (net)
In stock: 2480
In stock
Please note our quantity discounts (US Dollars).
≥ 250$0.59
Weight: 0.008 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
RoHS compliant: -
This part is new in our product range, no details are available at this time. For more recent details on the RoHS compatibility, please contact our Sales Department!
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

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