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 K51 and K53 Vibro-Insulator® Rebound Mounts

 

 The K51, K531, and K531 Mounts are designed to be used in applications where one mount is required, or in conjunction with other mounts that are in the K50 Series.  The rebound mount is used to limit movement from low frequency vibration and shock. 

These mounts are also refered to as torsional mounts, ring mounts and donut mounts, machinery mounts and rebounds.

 

 Some popular combinations include: 

  • K50 & K51; K50 & K50; K50 & K53; K50 & K531
  • K52 & K53; K52 & K52; K53 & K53

 

Features and Benefits:

  • Low cost
  • easy installation and no maintenance
  • Available in 30, 40, 50, 60, and 70 Durometer Shore A
  • Available in Natural Rubber, Neoprene, and Nitrile (Buna-N)
  • 2-D PDF prints are available for each mount
  • 2-D DWG, 3-D IGES, and 3-D SolidWorks are available upon request.
  • Made in the USA

 

Applications:

  • Motors, blowers, fans, radiators, cabs, gensets, engine mounts,
  • Military, transporation, HVAC, rail, construction, off highway

 

Environmental Data:

  • All static load test data for the Torsional Style Vibro-Insulator® Mounts is based on Neoprene.
  • Operating temperatures should not exceed 180° F.
  • Other elastomers such as Natural Rubber and Nitrile (Buna-N) are available upon request.

 

Natural Rubber (NR)

Advantages:  Outstanding resilience; high tensile strength; superior resistance to tear and abasion; excellent rebound elasticity (snap); good flexibility at low temperatures (-40° F to 155° F).

Limitations:  Poor resistance to heat, ozone, and sunlight; very little resistance to oil gasoline, and hydrocarbon solvents.

  • Operating temperatures should not exceed 155° F.
  • Natural Rubber is not recommended from exposure to oil, gasoline, ozone sunlight.

 Neoprene (CR)

All static load test data for the Torsional Style Vibro-Insulator® Mounts is based on Neoprene.

Advantages:  Good inherent flame resistance; moderate resistance to oil and gasoline; very good resistance to weather, ozone, and natural aging; good resistance to flex cracking; very good resistance to alkalis and acids.

Limitations:  Poor to fair resistance aromatic and oxygenated solvents; limited flexibility at low temperatures (10° F to 180° F).

Nitrile (Buna-N)

Advantages:  Very good resistance to oil and gasoline; superior resistance to petroleum-based hydraulic fluids; wide range of service temperatures (-65° F to 300° F); good resistance to hydrocarbon solvents; very good resistance to alkalis and acids.

Limitations:  Inferior resistance to ozone, sunlight, and natural aging; poor resistance to oxygenated solvents.

Source: American Chemical Society

 

Delivery is 6 weeks.

 

 

 

 

 

 

K51 and K53 Style With and Without Offset (Locator) 1
K51 and K53 Style With and Without Offset (Locator) 2
K51 and K53 Style With and Without Offset (Locator) 3
Product Code
Bottom Outside Diameter - in (A)
Top Outside Diameter - in (B)
Mounting Hole Diameter - in (C)
Inside Diameter - in (D)
Height - in (E)
Step - in (F)
Compression Spring Rate - lb/in
Compression Maximum Recommended Deflection - in
Compression Load at Maximum Deflection - lb
Durometer
Elastomer
Dimensional CAD Drawing (pdf)
Product Code
1.75
1.50
1.12
.625
.688
.124
750
.175
130
40
Natural Rubber
1.75
1.50
1.12
.625
.688
.124
750
.175
130
40
Neoprene
1.75
1.50
1.12
.625
.688
.124
750
.175
130
40
Nitrile
1.75
1.50
1.12
.625
.688
.124
1150
.175
200
50
Natural Rubber
1.75
1.50
1.12
.625
.688
.124
1150
.175
200
50
Neoprene
1.75
1.50
1.12
.625
.688
.124
1150
.175
200
50
Nitrile
1.75
1.50
1.12
.625
.688
.124
1450
175
250
60
Natural Rubber
1.75
1.50
1.12
.625
.688
.124
1450
175
250
60
Neoprene
1.75
1.50
1.12
.625
.688
.124
1450
175
250
60
Nitrile
1.75
1.50
1.12
.625
.688
.124
2300
.175
400
70
Natural Rubber
1.75
1.50
1.12
.625
.688
.124
2300
.175
400
70
Neoprene
1.75
1.50
1.12
.625
.688
.124
2300
.175
400
70
Nitrile
2.50
1.775
N/A
.625
1.00
N/A
750
.10
75
40
Natural Rubber
2.50
1.775
N/A
.625
1.00
N/A
750
.10
75
40
Neoprene
2.50
1.775
N/A
.625
1.00
N/A
750
.10
75
40
Nitrile
2.50
1.775
N/A
.625
1.00
N/A
1000
.10
100
50
Natural Rubber
2.50
1.775
N/A
.625
1.00
N/A
1000
.10
100
70
Neoprene
2.50
1.775
N/A
.625
1.00
N/A
1000
.10
100
50
Nitrile
2.50
1.775
N/A
.625
1.00
N/A
1500
.10
150
60
Natural Rubber
2.50
1.775
N/A
.625
1.00
N/A
1500
.10
150
60
Neoprene
2.50
1.775
N/A
.625
1.00
N/A
1500
.10
150
60
Nitrile
2.50
1.775
N/A
.625
1.00
N/A
2500
.10
250
70
Natural Rubber
2.50
1.775
N/A
.625
1.00
N/A
2500
.10
250
70
Neoprene
2.50
1.775
N/A
.625
1.00
N/A
2500
.10
250
70
Nitrile
2.25
1.64
N/A
.625
.90
N/A
550
.12
60
40
Natural Rubber
2.25
1.64
N/A
.625
.90
N/A
550
.12
60
40
Neoprene
2.25
1.64
N/A
.625
.90
N/A
550
.12
60
40
Nitrile
2.25
1.64
N/A
.625
.90
N/A
800
.12
90
50
Natural Rubber
2.25
1.64
N/A
.625
.90
N/A
800
.12
90
50
Neoprene
2.25
1.64
N/A
.625
.90
N/A
800
.12
90
50
Nitrile
2.25
1.64
N/A
.625
.90
N/A
1100
.12
130
60
Natural Rubber
2.25
1.64
N/A
.625
.90
N/A
1100
.12
130
60
Neoprene
2.25
1.64
N/A
.625
.90
N/A
1100
.12
130
60
Nitrile
2.25
1.64
N/A
.625
.90
N/A
1900
.12
220
70
Natural Rubber
2.25
1.64
N/A
.625
.90
N/A
1900
.12
220
70
Neoprene
2.25
1.64
N/A
.625
.90
N/A
1900
.12
220
70
Nitrile
Bottom Outside Diameter - in (A) Top Outside Diameter - in (B) Mounting Hole Diameter - in (C) Inside Diameter - in (D) Height - in (E) Step - in (F) Compression Spring Rate - lb/in Compression Maximum Recommended Deflection - in Compression Load at Maximum Deflection - lb Durometer Elastomer Dimensional CAD Drawing (pdf)

Use the sort keys located at the bottom of the table to find the exact Vibro-Insulator© you require. Please contact us for selection help.