RUBBER PARTS | Vibration & Shock Mounts
MM660 Series 600 Heavy-Duty Center-Bolt Safety Mountings
MM660
SERIES 600 HEAVY-DUTY CENTER-BOLT SAFETY MOUNTINGS
FOR LOADS TO 2400 POUNDS
DESCRIPTION
This ESTCO MM660 Series 600 Heavy-Duty Center-Bolt Safety Mounting is a versatile group of one-piece, low-deflection safety mountings designed for multidirectional isolation in heavy-duty applications.
The mountings are rated by static load in the axial direction and dynamic loads up to three times the rated load can be handled.
Although static loads in the radial direction are not recommended, dynamic radial loads are acceptable. The resilient element compressed during installation spreads at one end to form a self-contained rebound member. It features a bonded steel bushing that acts as a positive spacer.
To install, lubricate the end of the mounting lightly with soapy water and, with an arbor press, push on the bushing to seat the mounting in the bore of the supporting member. Tightening the bolt until stopped by the integral spacer completes the installation.
LOAD DEFLECTION GRAPH
Deflections below the line X—-X are considered safe practice for static loads; data above that line are useful for calculating deflections under dynamic loads
SELECTION GUIDE
STYLE 660
MINIMUM LOAD FOR 81% ISOLATION (LBS)
| FORCING FREQUENCY IN CYCLES PER MINUTE | ||||||||
|---|---|---|---|---|---|---|---|---|
| LOAD RATING | MAXIMUM LOAD (LBS) | 1250 | 1500 | 1750 | 2000 | 2500 | 3000 | 3600 |
| B | 950 | 950 | 670 | 500 | 500 | 240 | 170 | 120 |
| C | 1300 | 1050 | 800 | 600 | 400 | 270 | 180 | |
| D | 1850 | 1800 | 1350 | 1000 | 650 | 450 | 300 | |
| E | 2400 | 2000 | 1550 | 1000 | 700 | 500 | ||
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