Cantilevered (Single-Ended) Flexures

Cantilevered Free-Flex® Pivots are the most common type of flexure. Our single-ended flexures are attached or supported on one end which allows the other end to rotate. General applications include gimbal rings, mirror mounts, linkage systems and vibration isolation systems.

Overview

  • One end fixed with the other end free to rotate
  • Supports overhung loads
  • Most popular configuration
  • 30 standard design offerings
  • Click HERE for solid model downloads

Features

The flexure body is AISI 410 corrosion-resistant steel and the springs are AISI 420 corrosion resistant steel. These flexures utilize a brazed construction consisting of a silver/copper and nickel filler material.

The spring rates are usually within ±10% or less of the tabulated values above. However, the tolerances can be much larger for spring rate values below .0018 in-lb/deg. Contact our engineering staff if closer tolerances or actual values are required.

For use with high applied loading and low rotational angles, electron beam welded construction is available. If welded construction is desired please contact our engineering staff for assistance. For applications where the 

For applications where a tighter diameter tolerance is required, +0.0000/-0.0002 inches, specify “T2” after the catalog number. If other tolerance variations are desired please contact our engineering staff for assistance.

CHARACTERISTICS CHART

Radial load capacities noted below correspond to vertical radial loads resulting in compression (Vc) or tension (Vt) of the flexures, as depicted below.

Use the Pivot Characteristics Chart PDF in combination with our life cycle curves to determine the proper pivot for your application:

Nominal Outside Diameter (Inch) D +0.0000 -0.0005 Catalog Number Load Capacity – (Pounds)  Load At Center of “A” Torsional Spring Rate  See Note (2) in – lb Degree
See Note (1)
Series 5000 Cantilevered (size-type)   Vc   Vt L ±0.003 A ±0.005
0.1250 5004-400 25.5 25.5 0.200 0.095 0.0140
5004-600 8.9 13.0 0.0017
5004-800 1.0 3.7 0.0002
0.1562 5005-400 39.5 39.5 0.250 0.120 0.0279
5005-600 13.8 20.0 0.0035
5005-800 1.5 6.0 0.0004
0.1875 5006-400 56.0 56.0 0.300 0.142 0.0473
5006-600 19.8 28.0 0.0057
5006-660 12.2 20.2 0.0037
5006-800 2.1 8.0 0.0007
0.2500 5008-400 101.0 101.0 0.400 0.190 0.1141
5008-600 35.5 51.0 0.0143
5008-800 3.7 14.5 0.0018
0.3125 5010-400 158.0 158.0 0.500 0.238 0.2234
5010-600 55.0 79.0 0.0286
5010-800 5.8 23.0 0.0036
0.3750 5012-400 228.0 228.0 0.600 0.285 0.3840
5012-600 80.0 114.0 0.0480
5012-800 8.4 32.8 0.0058
0.5000 5016-400 403.0 403.0 0.800 0.380 0.9080
5016-600 141.0 202.0 0.1134
5016-800 14.6 58.0 0.0142
0.6250 5020-400 634.0 634.0 1.000 0.475 1.8500
5020-600 222.0 317.0 0.2321
5020-800 23.0 93.0 0.0295
0.7500 5024-400 910.0 910.0 1.200 0.570 3.1800
5024-600 318.0 455.0 0.3980
5024-800 33.0 130.0 0.0500
1.0000 5032-400 1620.0 1620.0 1.600 0.770 7.5200
5032-600 567.0 815.0 0.9390
5032-800 60.0 236.0 0.1175
  1. Pounds at zero deflection based on pure radial load. When the load is applied directly through a single spring, multiply capacity by 0.707. Pivot orientated such that a radial load puts flexures in Compression (Vc) or Tension (Vt).
  2. At zero load.

compression loading life cycle curves

tension loading life cycle curves

To learn more about Riverhawk’s Cantilevered (Single-Ended) Pivot Bearing, please contact a member of our team. We are happy to assist you with your project needs.

Resources

Read our Technical Papers and Case Studies to learn more about our products and their functions.