Pivot Mechanism for Clamping Arms | Component Specifications

Product Specifications

Technical details and manufacturing context for Pivot Mechanism

Definition

The pivot mechanism is a critical component within a clamping arm system that enables controlled rotational movement at the joint, allowing the arm to articulate and position the clamping head precisely. It serves as the fulcrum point where different sections of the arm connect and rotate relative to each other. This component is designed for use in machinery and equipment manufacturing, specifically in clamping arm assemblies where precise positioning and load-bearing capacity are required. The pivot mechanism is available in configurations using steel, stainless steel, or bronze bushings, depending on the application's environmental and load requirements. Key parameters include a rated load capacity of 500–2000 N, a rotation angle of 0–180°, an operating torque of 10–50 N·m, and a bearing diameter of 12–30 mm. Radial runout is specified at ≤0.05 mm per ISO 1101, and the operating temperature range is -20 to 80°C. Ingress protection ratings of IP54–IP65 per IEC 60529 are available. Material grades may include 45# or 40Cr per GB/T 699, with surface hardness of HRC 40–50 per GB/T 230.1. The weight ranges from 0.5 to 2.5 kg. These values are reference ranges and must be verified for the specific model and application with the legal manufacturer or supplier. The pivot mechanism is a component, not a standalone product, and its performance depends on proper integration with the clamping arm system. Always confirm model-specific values and standards with the manufacturer or supplier before procurement.

Working Principle

The pivot mechanism operates on the principle of a rotating joint, typically using bearings, bushings, or precision pins to reduce friction and enable smooth rotational movement. When force is applied to the clamping arm, the pivot allows sections to rotate around a fixed axis, changing the arm's position while maintaining structural integrity at the joint. The mechanism's design ensures that the rotational movement is controlled and precise, with minimal play or deviation. The choice of bearing or bushing material affects friction, wear, and load capacity. The pivot's rated load capacity and operating torque are critical for ensuring that the mechanism can handle the forces exerted during clamping operations without permanent deformation. The rotation angle of 0–180° provides the full range of motion needed for positioning the clamping head. The radial runout tolerance ensures that the rotation is accurate, which is essential for precise positioning. The operating temperature range and ingress protection rating define the environmental conditions under which the pivot can operate reliably. Proper lubrication and maintenance are necessary to maintain smooth operation and prevent premature wear.

Common Materials

Steel, Stainless Steel, Bronze Bushings

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Load Capacity	500–2000 N	Maximum force the pivot can sustain without permanent deformation.
Rotation Angle	0–180 °	Full range of motion for clamping arm positioning.
Operating Torque	10–50 N·m	Torque required to rotate the pivot under load.
Bearing Diameter	12–30 mm	Shaft diameter for mounting and alignment.
Radial Runout	≤0.05 mm	Precision of rotation; lower is better for accuracy.ISO 1101
Operating Temperature	-20–80 °C	Range for continuous operation without performance loss.
Ingress Protection	IP54–IP65	Protection against dust and water jets.IEC 60529
Material Grade	45# / 40Cr	Steel grades for strength and wear resistance.GB/T 699
Surface Hardness	HRC 40–50	Hardness after heat treatment for durability.GB/T 230.1
Weight	0.5–2.5 kg	Mass of the pivot mechanism, affects handling.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Pivot Pin Part
Central shaft that provides the axis of rotation

Material: Hardened Steel
Bearing/Bushing Part
Reduces friction between moving parts

Material: Bronze or Polymer
Retaining Ring Part
Secures components in position

Material: Spring Steel

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Clamping Arm

View system integration details

Boom Structure

View system integration details

Manufacturers of Pivot Mechanism

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Frequently Asked Questions

What is the rated load capacity of the pivot mechanism?

The rated load capacity is specified as 500–2000 N, which is the maximum force the pivot can sustain without permanent deformation. This is a reference range; the exact value depends on the specific model and application. Always verify with the manufacturer or supplier.

What is the rotation angle range?

The rotation angle is 0–180°, providing the full range of motion for clamping arm positioning. This range is typical, but the actual usable angle may vary based on the arm design and installation. Confirm with the manufacturer for your specific setup.

What materials are available for the pivot mechanism?

The pivot mechanism can be made of steel, stainless steel, or include bronze bushings. The material choice affects corrosion resistance, friction, and load capacity. The specific material grade (e.g., 45# or 40Cr) and hardness (HRC 40–50) are reference values; verify with the supplier.

What is the operating temperature range?

The operating temperature range is -20 to 80°C, within which the pivot can operate continuously without performance loss. This is a reference range; ensure that your application's environment falls within this range, and confirm with the manufacturer for any special conditions.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 10 MPa (static), 5 MPa (dynamic)
other spec:	Max angular deflection: ±45°, Max torque: 500 Nm, Lubrication required for high-cycle applications
temperature:	-40°C to 120°C

Pivot Mechanism

Product Specifications

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