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  • Mason BBNR4X4 Natural Rubber Bridge Bearing Vibration Isolation Pad, 4" Length x 4" Width x 1" Thick
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by Mason

Mason BBNR4X4 Natural Rubber Bridge Bearing Vibration Isolation Pad, 4" Length x 4" Width x 1" Thick

5 customer reviews
| 5 answered questions

Currently unavailable.
We don't know when or if this item will be back in stock.

Specifications for this item
Brand Name Mason
Part Number BBNR4X4
Number of Items 1
Material Type Rubber
UPC 811765021076
EAN 0811765021076
Load Capacity 2400  pounds
UNSPSC Code 26101765

This Mason Industries BBNR4X4 bridge bearing 4x4" vibration isolation pad r... Read full product description



Product Features

  • Pad for reducing noise, vibration, and impact where loadings per square inch are high
  • Natural rubber for durability and maximum vibration isolation
  • Solid material for high tensile strength and elongation for added deflection
  • Material contains antioxidants and anti-ozonants for longer life
  • Stack with 1/8" steel plates between pads for higher deflections and greater efficiency

Product Details

  • Shipping Weight: 1.2 pounds
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B006W0PWF0
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (5 customer reviews)
  • Amazon Best Sellers Rank: #82,363 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Product Warranty: For warranty information about this product, please click here

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Product Description

This Mason Industries BBNR4X4 bridge bearing 4x4" vibration isolation pad reduces noise, high frequency vibration, and impact where loadings per square inch are high. These vibration isolation pads are made of natural rubber for durability and maximum vibration isolation. They are solid for high tensile strength and elongation for added deflection, and the material contains antioxidants and anti-ozonants for longer life. They can be stacked with 1/8" steel plates between them for higher deflections and greater efficiency. These vibration isolation pads are suitable for supporting bridges, highway overpasses, buildings or components such as structural floors or secondary floating floors.

Specifications
Dimensions*4 x 4 x 1 inches/100 x 100 x 25 mm (W x L x T)
MaterialNatural rubber
Maximum load capacity (per square)2,400 lb./1089 kg
Hardness50 Durometer
Deflection1/8 inch/3.175 mm / 12.5%

*W is the horizontal distance from left to right, L is the horizontal distance from front to back, T is the thickness from top to bottom

Shock and vibration control products (absorbers, mounts, and pads) reduce air and structure-borne dissonance by either blocking or absorbing sound waves, or damping or isolating vibrations that cause them.  Shock absorbers, vibration damping mounts, and vibration damping pads can extend equipment life and help protect work environments, and they are most commonly used in heating, ventilation, and air conditioning (HVAC) systems or in other large machinery operations. Weight distribution determines the number of mounts or pads needed. If evenly distributed, the maximum load capacity per mount or pad should equal the total weight of the machine divided by the number of mounting points available.

Mason Industries manufactures noise reduction, vibration isolation, and seismic restraint control products such as mountings, hangers, and flexible connectors for mechanical equipment. The company, founded in 1958, is headquartered in Hauppauge, NY.


Customer Questions & Answers

Customer Reviews

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Most Helpful Customer Reviews

3 of 3 people found the following review helpful By Gentile Joe on June 22, 2014
Verified Purchase
I put three of these under a 60-gallon vertical air compressor (270lbs) bolted to my garage floor. They do a very good job of absorbing vibration and keeping the compressor from shaking the concrete floor. They're constructed of solid, dense, rubber (i.e. not hollow or honeycombed internally) and a little stinky (rubber smell) when you get them - so just be aware of that. They were relatively easy to drill through for the bolts - just be sure to use a sharp drill bit. I'd also recommend pre-drilling your holes as trying to drill holes through them once they're in place is probably not going to be the easiest thing to do. On top of all that, they were reasonably priced - especially when compared to the "vibration kits" offered by compressor manufacturers.
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1 of 1 people found the following review helpful By J. Billingsley on August 23, 2013
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Swing away spare tire holders on jeeps are notorious for rattling or breaking. I used this to bridge bearing to help secure my spare tire holder.
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By Heinz on December 23, 2014
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Very dense high quality. Used on my air compressor. But in my opinion these are way overpriced.
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1 of 2 people found the following review helpful By A. Warrier on February 7, 2014
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I was using it under the speakers in my home theater, trying to cut down on vibrations and hopefully to dampen the noise in the room below. I think I feel/hear some improvement, but not sure..
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1 of 1 people found the following review helpful By MOONSUP P. on September 23, 2014
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Nice
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