Industry-Verified Manufacturing Data (2026)

Torque Limiter

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Torque Limiter used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Torque Limiter is characterized by the integration of Friction Discs and Spring Assembly. In industrial production environments, manufacturers listed on CNFX commonly emphasize Alloy Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A safety device that prevents mechanical overload by limiting the maximum torque transmitted through a drive system.

Product Specifications

Technical details and manufacturing context for Torque Limiter

Definition
A torque limiter is a critical safety component within a spindle or torque head assembly that protects machinery from damage by disengaging or slipping when torque exceeds a preset threshold, preventing overload conditions that could damage gears, shafts, motors, or workpieces.
Working Principle
The torque limiter operates by maintaining a preset slip torque threshold. When the transmitted torque exceeds this threshold due to jamming, overload, or sudden shock loads, the device either slips (in friction-type limiters) or disengages (in shear-pin or ball-detent types), interrupting torque transmission until the overload condition is resolved and the device is reset.
Common Materials
Alloy Steel, Spring Steel, Friction Materials
Technical Parameters
  • Maximum torque capacity before disengagement/slipping occurs (Nm) Customizable
Components / BOM
  • Friction Discs
    Provide controlled slipping action when torque exceeds threshold
    Material: Sintered Bronze or Composite Friction Material
  • Spring Assembly
    Applies pressure to maintain engagement under normal operating conditions
    Material: Spring Steel
  • Housing
    Encloses and protects internal components while providing mounting interfaces
    Material: Aluminum Alloy or Steel
Engineering Reasoning
5-500 N·m
550 N·m shear pin yield point (AISI 1045 steel, σ_y = 530 MPa)
Design Rationale: Shear pin plastic deformation exceeding material yield strength under torsional overload
Risk Mitigation (FMEA)
Trigger Sudden load inertia spike exceeding 110% rated torque
Mode: Shear pin permanent deformation without disengagement
Strategy: Install overspeed detection sensor with 95 ms response time cutoff
Trigger Corrosive environment (pH < 4.0) exposure for >2000 hours
Mode: Shear pin stress corrosion cracking at 65% of yield strength
Strategy: Apply 25μm electroless nickel plating with 0.15% phosphorus content

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Torque Limiter.

Applied To / Applications

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

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Ambient pressure only (not a pressure-containing device)
speed range: Up to 10,000 RPM (depending on size and design)
temperature: -20°C to +120°C (standard), up to +200°C with special seals
torque range: 0.5 Nm to 50,000 Nm (depending on model)
Media Compatibility
✓ General industrial drives (conveyors, pumps, fans) ✓ Packaging machinery ✓ Material handling equipment
Unsuitable: Submerged or high-pressure hydraulic environments
Sizing Data Required
  • Required torque setting (Nm or lb-ft)
  • Maximum operating speed (RPM)
  • Drive system inertia (kg·m² or lb·ft·s²)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Slippage at incorrect torque
Cause: Wear or contamination of friction surfaces, improper calibration, or degraded spring force
Mechanical binding or failure to disengage
Cause: Corrosion, misalignment, foreign object ingress, or damage to internal components like balls or springs
Maintenance Indicators
  • Audible clicking or grinding noises during normal operation
  • Visible wear debris or oil leakage around the torque limiter housing
Engineering Tips
  • Implement regular torque calibration checks using certified equipment to ensure the limiter engages at the specified torque
  • Maintain proper alignment and cleanliness of connected shafts, and use sealed units or protective covers in contaminated environments

Compliance & Manufacturing Standards

Reference Standards
ISO 1940-1:2003 (Balance quality requirements for rotors in a constant rigid state) ANSI/AGMA 2000-A88 (Gear Classification and Inspection Handbook) DIN 743-1:2012 (Calculation of load capacity of shafts and axles)
Manufacturing Precision
  • Bore diameter: +/-0.02 mm
  • Torque setting accuracy: +/-5% of nominal value
Quality Inspection
  • Torque calibration test (verification of slip torque accuracy)
  • Hardness testing (Rockwell or Brinell method for critical components)

Factories Producing Torque Limiter

Verified manufacturers with capability to produce this product in China

✓ 92% Supplier Capability Match Found

T Technical Director from United States Jan 30, 2026
★★★★★
"The Torque Limiter we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."
Technical Specifications Verified
P Project Engineer from United Arab Emirates Jan 27, 2026
★★★★☆
"Found 30+ suppliers for Torque Limiter on CNFX, but this spec remains the most cost-effective. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Australia Jan 24, 2026
★★★★★
"The technical documentation for this Torque Limiter is very thorough, especially regarding technical reliability."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

11 sourcing managers are analyzing this specification now. Last inquiry for Torque Limiter from Poland (1h ago).

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Frequently Asked Questions

How does a torque limiter protect machinery from damage?

A torque limiter prevents mechanical overload by disengaging or slipping when torque exceeds a preset limit, protecting drive systems, motors, and connected equipment from damage caused by jams, shocks, or overload conditions.

What maintenance is required for torque limiters with friction discs?

Regular inspection of friction discs for wear, checking spring tension, and ensuring proper lubrication of moving parts. Replace worn friction discs and recalibrate torque settings as specified by the manufacturer.

Can torque limiters be adjusted for different torque settings?

Yes, most torque limiters feature adjustable spring assemblies that allow precise calibration of torque limits to match specific machinery requirements and operational conditions.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

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