Dynaflex® Shear-Type Couplings
Part # J-1211-5-8
LORD Dynaflex® Shear-Type Couplings are compact, one-piece flexible couplings economically constructed to isolate low-frequency vibration and accommodate multidirectional misalignment.
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| HP @ 1750 rpm Ref. | 1/2 | ||||||||||||
| Torque Rating Lbs.-in | 20.00 lbs./in. | ||||||||||||
| Static Torsional Stiffness | 1.33 lb-in/deg +/- 20% | ||||||||||||
| Set Screw Size | 1/4-20 | ||||||||||||
| Part No. | J-1211-5-8 | J121158 | ||||||||||||
| Manufacturer | LORD Corporation | ||||||||||||
| Part Category | Vibration Control | ||||||||||||
| Part Section | DYNAFLEX® Couplings - Shear-Type | ||||||||||||
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| Dimensions | Technical Drawing | ||||||||||||||||||||||||
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Table 2 Standard Bore Tolerances |
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| NOTE: Intrusion should not exceed “E” bore length dimensions |
Maximum recommended misalignment
1/32 inch parallel, 2° angular
Intrusion
Intrusion should not exceed “E” bore length dimensions
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Table 2 Standard Bore Tolerances |
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Standard Construction
- Hubs - steel
- Bores - as listed
- Set Screws - one per hub furnished but not installed
- Flexing Element - neoprene
Tolerances
None Noted
Isolation Performance
Refer to Engineering Guide, Sample Problems section for a step by step method to calculate system natural frequencies and isolation efficiency.
Custom Designs
Customized designs and special elastomer compounds for specific problems are available. These may result in spring rates and dimensions other than shown.
Custom Parts
Our custom molding department can make a part just for your application.
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"Frequently vibration isolation problems require a system engineering analysis..." - Put us to work for you.
DeltaFlex has the computer capability, as well as specialized programs, for analyzing engine/transmission combinations. The output from these analyses is a mounting proposal which optimizes performance over the complete range of operating speeds. This service is available to you upon request. If you require this type of engineering assistance please call 800.657.0747 we will be glad to assist you.
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What is the impact of Vibration Control?
The biggest impact that vibration isolation can have, is with the end users of our customers products, more importantly their perception of the quality of those products.
Values states herein represent typical values as not all test are run on each lot produced. For formalized product specifications or specific product end uses, contact Customer Service 262.632.2345.
A part’s listing on this website does not guarantee its availability.