Clover®Springs
Stock Sizes in stainless steel and carbon steel
Clover®Dome spring washers are well suited for applications where a
Belleville washer or disc spring does not provide adequate deflection, or where
the load obtained from a wave washer is not sufficient for the application. By
combining washers in varying sequences, each size provides multiple
load-carrying or deflection possibilities. These washers have had the set
removed during the manufacturing process.
Material
- Stainless Steel Type 17-7 PH - Chemistry per AMS 5529
- Carbon Steel SAE 1070 to SAE 1074 (based on availability at time of
manufacture)
- Certificate of compliance available upon request.
- Certificate of chemical analysis available at extra cost.
Load and Deflection
Typical load-deflection curves for four characteristic proportions of washers
listed are shown in Figure 1 below. From them, loads at intermediate heights may
be estimated. The nominal amount of dish or cone (h) is found by subtracting "t"
from "H".
EXAMPLE: Using part BC-0709-015-S, estimate the load at 50%
deflection. h/t = .050/ .015 ~ 3.5.
From Figure 1 above, using the curve for h/t = 3.5, the load at 50% of the
deflection is approximately 85% of the load at flat position. From the table
(see Order page), the load at flat is 27 lbs. To calculate the load at 50%, 27
lbs x .85 = 22.95 lbs.
The typical curves in Figure 1 show deflections beyond 75%. The area beyond
75% deflection should be avoided due to the partial bottoming of the Clover®Dome and excessive stress concentrations above 75% deflection.
 
Stacked Clover® Washers
Additional load of deflection can be obtained by stacking washers in series
or in parallel. See charts below.
Contact our engineering department for tolerances.
Shown below are comparative force/deflection graphs by alternate methods of
stacking.
CLOVER®DOME
US Patent #6,705,813. Patents pending outside USA.
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Other dimensions and custom designs are available.
Please call 1-800-345-7732 or visit
www.cloverspring.com for additional information. |
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