Cylindrical Mounts
AV Products cylindrical mounts are made with the finest quality rubber and metal to meet the most demanding requirements for effective vibration isolation and noise damping over a wide range of frequencies while managing motion. Cylindrical mounts, also called cylindrical bobbins or bobbin mounts are commonly used for both active and passive vibration suppression as well as shock and structure-borne noise control. Cylindrical vibration isolators can be installed in both compression and shear designs.
Each cylindrical mount is available with natural rubber as well as specialized compounds as seen below.
Additional compounds available: Chloroprene (Baypren, Neoprene), Ethylene Propylene Terpolymer, Ntrile Butadine (Perbunan), Styrene Butadiene, Butyl, Polyurethane, Silicone Rubber and Fluorocarbon (Viton). Stainless steel threads are available for substantial volume orders.
Click on the mount thread type or picture to see detailed specifications, drawings and graphs. Scroll down to read more about and compare each mount and its applications.
Types of Cylindrical Mounts
All the following mounts can be loaded in shear or compression. Stainless steel threads are available by request as well as non-standard thread lengths. These mounts can also be made with specialized compounds, see above for details.
Type A - Male/Male
Type A male/male cylindrical mounts have male threads on both sides of the mount. Metric, UNC and UNF threads are available.
Type B - Male/Female
Type B male/female cylindrical mounts have a male thread on one side and a female thread on the other side of the mount. Metric, UNC and UNF threads are available.
Type C - Female/Female
Type C female/female cylindrical mounts have female threads on both sides of the mount. Metric, UNC and UNF threads are available.
Type D - Single Male
Type D single male cylindrical mounts have only one male thread on one side of the mount, the other side is flat. Metric and UNC threads are available.
Type E - Single Female
Type E single female cylindrical mounts have only one female thread on one side of the mount, the other side is flat. Metric and UNC threads are available.
KP-D and KP-E
KP-D and KP-E mounts are often referred to as bumper mounts, rubber bumpers and rubber buffers. These mounts have male threads on both sides.

Benefits Cylindrical Mounts Provide
Simple and effective, cylindrical mounts are easily installed and maintenance free anti vibration mounts.
There are many sizes, studs and threads as well as tapped holes available for a wide variety of applications ranging from protecting sensitive electrical equipment to industrial applications such as shock and vibration reduction, even in commercial grinding machines.
Additional benefits:
- reduce wear and extend the life of the machinery
- increase machine protection
- reduced maintenance and repair costs
- improved work environment for your employees
- reduce shock to floors and foundations
Cylindrical mounts are often used as a buffer or sandwich between two objects such as a motor or fan and a mounting frame.
Applications: fans, motors, compressors, grinding machines, hvac equipment, pumps, relays, generator engines, blowers, bumpers, appliances, electric control panels and automotive equipment.