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Free-Flex® Pivot

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The Free-Flex® Pivot is a simply packaged, compact and easily installed limited rotation bearing with predictable and repeatable performance. The pivot is made of flat, crossed springs supporting rotating sleeves. Originally patented by the Bendix Company in 1961, to date over eight million pivots have been put into service. The product line was purchased by the Riverhawk Company in 2004.

The Free-Flex® Pivot is a frictionless, stiction-free bearing uniquely suited for limited angular travel. Flex pivots are designed for applications that do not permit lubrication yet demand precise positioning and require infinite life. Along with a wide range of industrial applications, additional applications include guidance systems for missiles, scanning mirror assemblies for both satellites and ground applications, jet engine fuel control, and vibration sensors. Flexural pivots are the product of choice any time reliable, predictable rotation is needed.

A variety of pivot sizes and ratings are available in both cantilevered (Series 5000) and double-ended (Series 6000) designs. We are also fully capable of special designs and have all the testing equipment necessary to examine every mechanical property of our flexural pivots to include: fatigue testing, center shift testing, torsional spring rate testing, concentricity, roundness, radial / axial spring rate and static load testing. We also have a full metallurgy lab to perform a metallographic analysis.

Flexural pivots are made from 410 and 420 stainless steel for standard construction. Special materials have included Custom 455 Stainless, Inconel 718, Titanium and Maraging Steel. Special configurations have included flanges, grooves, flats, special spring rates, special lengths and gold plating.



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Item #

Nominal Outside Diameter - D

Load Capacity - VC

Load At Center of "A" - VT

Length - L

Length - A

Length - B

Length - C

5004-400 0.1250 in 25.5 lb 25.5 lb 0.200 in 0.095 in N/A N/A
5004-600 0.1250 in 8.9 lb 13.0 lb 0.200 in 0.095 in N/A N/A
5004-800 0.1250 in 0.97 lb 3.7 lb 0.200 in 0.095 in N/A N/A
5005-400 0.1562 in 39.5 lb 39.5 lb 0.250 in 0.120 in N/A N/A
5005-600 0.1562 in 13.8 lb 20.0 lb 0.250 in 0.120 in N/A N/A
5005-800 0.1562 in 1.50 lb 6.0 lb 0.250 in 0.120 in N/A N/A
5006-400 0.1875 in 56.0 lb 56.0 lb 0.300 in 0.142 in N/A N/A
5006-600 0.1875 in 19.8 lb 28.0 lb 0.300 in 0.142 in N/A N/A
5006-660 0.1875 in 12.2 lb 20.2 lb 0.300 in 0.142 in N/A N/A
5006-800 0.1875 in 2.1 lb 8.0 lb 0.300 in 0.142 in N/A N/A
5008-400 0.2500 in 101.0 lb 101.0 lb 0.400 in 0.190 in N/A N/A
5008-600 0.2500 in 35.5 lb 51.0 lb 0.400 in 0.190 in N/A N/A
5008-800 0.2500 in 3.7 lb 14.5 lb 0.400 in 0.190 in N/A N/A
5010-400 0.3125 in 158.0 lb 158.0 lb 0.500 in 0.238 in N/A N/A
5010-600 0.3125 in 55.0 lb 79.0 lb 0.500 in 0.238 in N/A N/A
5010-800 0.3125 in 5.8 lb 23.0 lb 0.500 in 0.238 in N/A N/A
5012-400 0.3750 in 228.0 lb 228.0 lb 0.600 in 0.285 in N/A N/A
5012-600 0.3750 in 80.0 lb 114.0 lb 0.600 in 0.285 in N/A N/A
5012-800 0.3750 in 8.4 lb 32.8 lb 0.600 in 0.285 in N/A N/A
5016-400 0.5000 in 403.0 lb 403.0 lb 0.800 in 0.380 in N/A N/A
5016-600 0.5000 in 141.0 lb 202.0 lb 0.800 in 0.380 in N/A N/A
5016-800 0.5000 in 14.6 lb 58.0 lb 0.800 in 0.380 in N/A N/A
5020-400 0.6250 in 634.0 lb 634.0 lb 1.000 in 0.475 in N/A N/A
5020-600 0.6250 in 222.0 lb 317.0 lb 1.000 in 0.475 in N/A N/A
5020-800 0.6250 in 23.0 lb 93.0 lb 1.000 in 0.475 in N/A N/A
  Results 1 - 25 of 61 1 2 3 
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