Failsafe Rubber Shear Mount, or Bell Mount:

This bell-shaped anti-vibration mount, is a popular option for rubber/metal anti-vibration pedestal mounts when used with compression loads.

It provides a low-profile solution for isolation problems of numerous machines with rotation speeds of over 1500 revolutions per minute (compressors, motors, fans and pumps).

The elastomeric component is partially protected by the galvanised steel shell.

This isolator offers a good balance between isolation performance, mount height, and price.

This is a 'failsafe' shear mount, it is not double bonded.  There are pro's and con's to making a mount failsafe.  The main con of a mount which is not double bonded is that the rubber will wear out faster than a double bonded mount.

This mount is designed to be used when mounted to a flat horizontal surface.  The load applied then acts vertically downwards towards the ground.

One notable advantage of all Shear Cap, or Bell Mounts, is that their properties tend to be more uniform with small changes in direction of load.  E.g. if used on a ship, the rocking of the ship will have a reduced impact on isolation when compared to standard Pedestal mounts.

Features / benefits

• Load range from 150 to 1,300 Kg
• Low overall height
• Allows the machinery to be fixed to the floor

Sizes and Load Ratings:

• Dimensions in mm
• Loads in Kg.
• Spring Rate in Kg/mm in compression (tolerances are up to +/- 20%)

Lead Time

These items are manufactured by an AVMR supplier.  Typically these items are delivered in 3 working weeks (note: 2 weeks shutdown over Christmas/NY and 4 week shutdown for August).