About Us
Company Values
Engineering Excellence
We lean on over 10 years of power transmission expertise. Every one-way clutch, backstop, and specialized bearing is crafted with micron-level tolerances and rigorous heat-treatment to guarantee long service life.
Uncompromising Quality
Operating a modern CNC and precision-grinding facility, our quality control ensures low backlash and zero-failure backstopping. We focus on reliable performance that prevents unexpected industrial downtime.
Precision Customization
We understand that every machinery drivetrain is unique. Lisongtai provides flexible OEM/ODM customized services, tailoring torque ratings, material specs, and dimensions strictly according to your CAD blueprints.
Global B2B Support
As a trusted global mechanical component supplier, we provide seamless international shipping, transparent material certifications, responsive English technical assistance, and 100% brand interchangeability.
Why Choose LST Clutch & Bearing?
From advanced CNC manufacturing to certified quality control, we deliver reliable power transmission components tailored for your business.
Advanced WEDM-LS Technology for Sprag Clutches
Low-Speed Wire EDM: We utilize advanced WEDM-LS CNC wire cutting to manufacture our sprags, ensuring precise contact geometry and minimal surface roughness.
Metallurgical Control: By precisely calibrating pulse width and servo ratios, we control the micro-structural metamorphic layer strictly within 15 to 20 u m.
Extended Service Life: Verified by Scanning Electron Microscope (SEM) analysis, our optimized cutting process eliminates micro-defects, maximizing wear resistance under heavy cyclic loads.
CNC Lathe Machining & Precision Grinding
To ensure sub-micron tolerances and premium surface finishes, LST operates an advanced, fully equipped manufacturing facility:
Precision Grinding: Equipped with state-of-the-art flat grinding, OD/ID (outer/inner diameter), and centerless grinding machines.
Advanced CNC Machining: Utilizing high-precision CNC lathes, drilling machines, and advanced EDM / wire-cutting technology.
OEM Capabilities: Our comprehensive machinery fleet allows 100% in-house production control, guaranteeing strict quality and fast lead times for custom clutches and bearings.
Rigorous QC Management System
To guarantee that 100% of outbound products strictly match your technical drawings, LST implements an uncompromising quality control process:
4-Stage Independent Inspection: Every single clutch and bearing undergoes 4 separate rounds of inspection, each conducted by a different specialized QC technician to eliminate human error.
Dimensional Tolerance Verification: We verify all critical dimensions, housing clearances, and bore sizes against your original blueprints before packaging.
Zero-Failure Outbound Standard: This multi-layered quality assurance system ensures maximum reliability, low backlash, and zero-defect delivery for your peace of mind.
Secure Packaging & Global Shipping
LST ensures that every order is protected and delivered cost-effectively, anywhere in the world:
Heavy-Duty Protective Packaging: All clutches and bearings are treated with anti-rust oil and packed in specialized protective boxes or crates to withstand long-transit environments.
Flexible Shipping Options: We support flexible delivery methods tailored to your timeline and budget, including Air Freight, Sea Freight, and International Express (DHL, FedEx, UPS, Aramex, etc.).
Optimized Freight Costs: Utilizing our long-standing corporate courier accounts, we pass our high-volume discounts directly to you, significantly reducing your landed transportation costs.
Dedicated Cargo Lines: Through strategic partnerships with multinational dedicated-line freight forwarders, we guarantee fast, safe, and hassle-free customs clearance.
Inside Our Production Facility
Take a virtual tour of our modern CNC machining, wire-cutting, and grinding workshops.
Frequently Asked Questions
Find expert answers to frequently asked questions about LST one-way clutches, industrial backstops, sprag/roller freewheels, and precision bearings. Discover our advanced engineering capabilities, non-standard customization options, and brand interchangeability.
LST specializes in a comprehensive range of power transmission components, including sprag-type and roller-type overrunning clutches, heavy-duty industrial backstops, indexing freewheels, cam followers, and specialized non-standard precision bearings.
Yes, absolutely. Over 40% of our production consists of OEM/ODM customized orders. Our engineering team can verify your CAD/3D blueprints, optimize metallurgical heat-treatment specs, and calibrate precise torque ratings tailored to your specific mechanical environment.
Yes. All LST standard overrunning clutches, freewheels, and backstops are manufactured strictly according to global dimensional specifications. They feature 100% drop-in interchangeability with major premium European, American, and Japanese brands while offering highly competitive B2B pricing.
Sprag clutches utilize wedge-shaped cams to deliver higher torque density and exceptional wear resistance, making them ideal for high-speed overrunning and heavy backstopping. Roller-type clutches rely on cylindrical rollers and springs, offering superior precision for high-frequency indexing and light to medium-duty applications.