Series 300 Cylindrical Mountings
For loads to 142 pounds in compression; 64 pounds in shear
Description
The small, yet rugged design and the broad range of sizes make Estco MM314 Series 300 cylindrical mountings ideal for a wide range of applications. They have been used on electric motors and generators, fans and blowers, relays and control panels, business machines timing devices and air handling equipment.
Estco cylindrical mountings can be loaded in compression, in shear, or in combination compression and shear. Additional standard stud combinations have been added to the line to allow wider applications of these mountings to a customer’s design requirements.
All engineering data herein apply to mountings with a studded or tapped insert at each end.
The maximum unthreaded portion of the stud does not exceed 1/16-inch.
Dimensions
Dimensions tables are long and do not adequately fit on mobile devices.
View this page on a tablet or computer, or call Estco with questions about dimensions:
SELECTION GUIDE
| COMPRESSION | MINIMUM LOAD FOR 81% ISOLATION (LBS) | ||||||||||
| LOAD RATING | MAXIMUM LOAD (LBS) | FORCING FREQUENCY IN CYCLES PER MINUTE | |||||||||
| 950 | 1100 | 1250 | 1500 | 1750 | 2000 | 2250 | 2500 | 3000 | 3600 | ||
A | 56 | 50 | 38 | 28.5 | 22.5 | 18 | 12.5 | ||||
B | 73 | 73 | 51 | 39 | 30.5 | 24.5 | 16.5 | 12 | |||
C | 109 | 85 | 63.5 | 50 | 41 | 28 | 20 | ||||
D | 142 | 129 | 99 | 78 | 64 | 44 | 30 | ||||
| SHEAR | MINIMUM LOAD FOR 81% ISOLATION (LBS) | ||||||||||
| LOAD RATING | MAXIMUM LOAD (LBS) | FORCING FREQUENCY IN CYCLES PER MINUTE | |||||||||
| 950 | 1100 | 1250 | 1500 | 1750 | 2000 | 2250 | 2500 | 3000 | 3600 | ||
A | 32 | 23 | 18 | 14.5 | 10 | 7.5 | * | * | * | * | * |
B | 38 | 32 | 24.5 | 19 | 13 | 9.5 | 7 | * | * | * | * |
C | 51 | 44.5 | 36 | 26 | 19.5 | 14 | 12 | 10 | * | * | |
D | 64 | 58 | 46.5 | 34 | 27 | 20.5 | 17 | 14 | 9.5 | * | |
* At these forcing frequencies lesser loads will yield 81% isolation.
DIMENSIONS
| LEFT STUD (IN.) | RIGHT STUD (IN.) | |||
| THREAD | LENGTH | THREAD | LENGTH | SUFFIX |
5/16 – 18 | 1/2 | 5/16 – 18 | 1/2 | 68 |
5/16 – 18 | 1/2 | 5/16 – 18 | 3/4 | 69 |
5/16 – 18 | 9/16 | 5/16 – 18 | 9/16 | • 76 |
5/16 – 18 | 9/16 | 5/16 – 18 | 3/4 | 75 |
5/16 – 18 | 3/4 | 5/16 – 18 | 3/4 | 70 |
• standard stud
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
