Cantilevered (Single-Ended) Pivot Bearings

Cantilevered Pivot Bearing Cutaway

Cantilevered pivot bearings are the most commonly used type of pivot bearing. With these single ended bearings, one end is attached or supported which allows the other end to rotate. General cantilevered pivot bearing applications include gimbal rings, mirror mounts, various linkages, and vibration isolation systems.

The load capacities shown below represent maximum allowable forces in any single direction. If the intended application has multi-directional loading, such as combined axial and radial loads, bending moments, extreme temperatures, or will be subjected to vibration or shock loads please consult our engineering staff for assistance.

Pivot Characteristics Chart

Use the Pivot Characteristics Chart below in combination with our life cycle curves to determine the proper pivot for your application. Click here to see an example of how to choose the right pivot.

Nominal Outside Diameter (Inch) D +0.0000 -0.0005	Torsional Spring Rate (in-lb) (Degree) See Note 2	Radial Load Capacity (Pounds) Load at Center of "A" See Note 1		Axial Load Capacity (Pounds)			Catalog Number
Nominal Outside Diameter (Inch) D +0.0000 -0.0005	Torsional Spring Rate (in-lb) (Degree) See Note 2	Vc	Vt	Pa	L ±0.003	A ±0.005	Series 5000 Cantilevered
0.1250	0.0140	25.5	25.5	24.5	0.200	0.095	5004-400
	0.0017	8.9	13.0	12.3			5004-600
	0.0002	1.0	3.7	5.9			5004-800
0.1562	0.0279	39.5	39.5	38.7	0.250	0.120	5005-400
	0.0035	13.8	20.0	19.4			5005-600
	0.0004	1.5	6.0	9.7			5005-800
0.1875	0.0473	56.0	56.0	56.4	0.300	0.142	5006-400
	0.0057	19.8	28.0	27.9			5006-600
	0.0037	12.2	20.2	24.4			5006-660
	0.0007	2.1	8.0	13.9			5006-800
0.2500	0.1141	101.0	101.0	99.0	0.400	0.190	5008-400
	0.0143	35.5	51.0	49.4			5008-600
	0.0018	3.7	14.5	24.7			5008-800
0.3125	0.2234	158.0	158.0	154.0	0.500	0.238	5010-400
	0.0286	55.0	79.0	77.5			5010-600
	0.0036	5.8	23.0	38.8			5010-800
0.3750	0.3840	228.0	228.0	223.0	0.600	0.285	5012-400
	0.0480	80.0	114.0	112.0			5012-600
	0.0058	8.4	32.8	55.4			5012-800
0.5000	0.9080	403.0	403.0	392.0	0.800	0.380	5016-400
	0.1134	141.0	202.0	196.0			5016-600
	0.0142	14.6	58.0	98.0			5016-800
0.6250	1.8500	634.0	634.0	615.0	1.000	0.475	5020-400
	0.2321	222.0	317.0	308.0			5020-600
	0.0295	23.0	93.0	155.0			5020-800
0.7500	3.1800	910.0	910.0	884.0	1.200	0.570	5024-400
	0.3980	318.0	455.0	442.0			5024-600
	0.0500	33.0	130.0	221.0			5024-800
1.0000	7.5200	1620.0	1620.0	1570.0	1.600	0.770	5032-400
	0.9390	567.0	815.0	785.0			5032-600
	0.1175	60.0	236.0	392.0			5032-800
Notes: Pounds at zero deflection based on pure radial load. Performance of pivot is a function of number of cycles, angular travel, and loading. Must use life cycle curves for selection of proper pivot. When the load is applied directly through a single spring, multiply capacity by 0.707. At zero load, Torsional Spring Rate may change with radial load.

Standard Material

The pivot body is AISI 410 or 420 corrosion-resistant steel and the flexing elements are AISI 420 corrosion resistant steel. These pivots utilize brazed construction consisting of a silver/copper and nickel filler material.

Torsional Spring Rate

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.

Welded Construction

For applications where the braze alloy presents a problem, electron beam welded construction is available. If welded construction is desired please contact our engineering staff for assistance.

Tighter Diameter Tolerance

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