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

Standard pivots are brazed construction and consist of an AISI 410 corrosion-resistant steel body with AISI 420 flexures.

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.

Electron beam welded pivots are available for applications with high applied loads and low rotational angles. Please contact Riverhawk engineering for assistance or further information.

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 -0.0005Catalog NumberLoad 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   VtL ±0.003A ±0.005
0.12505004-40025.525.50.2000.0950.0140
5004-6008.913.00.0017
5004-8001.03.70.0002
0.15625005-40039.539.50.2500.1200.0279
5005-60013.820.00.0035
5005-8001.56.00.0004
0.18755006-40056.056.00.3000.1420.0473
5006-60019.828.00.0057
5006-66012.220.20.0037
5006-8002.18.00.0007
0.25005008-400101.0101.00.4000.1900.1141
5008-60035.551.00.0143
5008-8003.714.50.0018
0.31255010-400158.0158.00.5000.2380.2234
5010-60055.079.00.0286
5010-8005.823.00.0036
0.37505012-400228.0228.00.6000.2850.3840
5012-60080.0114.00.0480
5012-8008.432.80.0058
0.50005016-400403.0403.00.8000.3800.9080
5016-600141.0202.00.1134
5016-80014.658.00.0142
0.62505020-400634.0634.01.0000.4751.8500
5020-600222.0317.00.2321
5020-80023.093.00.0295
0.75005024-400910.0910.01.2000.5703.1800
5024-600318.0455.00.3980
5024-80033.0130.00.0500
1.00005032-4001620.01620.01.6000.7707.5200
5032-600567.0815.00.9390
5032-80060.0236.00.1175
  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.