Why doesn't HEICO-LOCK(R) loosen?
HEICO-LOCK® Wedge Locking System
Why doesn't HEICO-LOCK® loosen?
Reliable, safe, and easy-to-use HEICO-LOCK(R) locking device An explanation of the principles supporting this locking device. 1. Hardness difference: H (HEICO) > H (material) The surface hardness of the washer is harder than that of the general fastening material and nut/bolt, and it firmly spikes into the surfaces of the fastening material and bolt/nut. 2. Friction difference: μ (a) > μ (i) Friction coefficient of the wedge-shaped cam surface on the inside of the washer: μ (i) Friction coefficient of the radial tooth surface on the outside of the washer: μ (a) 3. Angle difference: α > β Angle of the cam surface on the inside of HEICO-LOCK(R): α Lead angle of the screw: β 4. Axial force (preload) difference: F (dyn) > F (stat) Dynamic axial force (dyn) occurring in an environment where a load in the loosening direction is present Static axial force (stat) during tightening The locking effect of the HEICO-LOCK(R) series has been demonstrated through vibration tests in accordance with international standards. - German Industrial Standards (DIN 65151, DIN 25201-4) - U.S. Aerospace Standards (NASM 1312-7)
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basic information
■ A proven locking system that secures bolts even under high loads ■ Suitable for environments using lubricants ■ Reusable *depending on usage conditions ■ Very easy to install and remove ■ Provided in pairs in advance ■ Usable with high-strength bolts (8.8, 10.9, 12.9, A2-70, A4-80, etc.) ■ The basic outer diameter width comes in "2 types": narrow width / wide width ■ Standard materials: steel, stainless steel, 254 SMO, Inconel, etc. ■ A rich lineup tailored to usage purposes ■ Standard sizes: M3 – M76, ¼” – 3” *Custom sizes are also available ■ A wide range of products suited to various applications and environments － HEICO-LOCK(R) High Lock Wedge Lock Washer － HEICO-LOCK(R) High Lock Combination Washer － HEICO-LOCK(R) High Lock Wedge Lock Nut － HEICO-LOCK(R) High Lock Ring Lock Washer *For more details, please feel free to contact us.
Price information
◆ Prices may vary depending on the quantity. ◆ If you provide the size, material, and intended use, we can offer samples.
Delivery Time
P1
※The delivery time may vary depending on the quantity, so please feel free to contact us.
Applications/Examples of results
<Applications> ◆ Energy (gas turbines for power generation, wind power, hydropower, etc.) ◆ Shipbuilding and marine equipment (marine engines, propulsion equipment, etc.) ◆ Railways and logistics ◆ Construction, forestry machinery, and agricultural machinery ◆ Manufacturing equipment (machine tools, presses, material handling equipment, etc.) ◆ Plant engineering (steel mills, oil refineries, chemical plants, etc.) ◆ Civil engineering and construction (bridges, steel construction, etc.) ◆ Motorsports *For more details, please feel free to contact us.
Detailed information
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【Reading and Rules for Model Numbers】 (1) Series: - HL〈Wedge Lock Washer〉 - HK〈Combination Washer〉 - HLM〈Wedge Lock Nut〉 - HLR〈Ring Lock Washer〉 (2) Outer Diameter Type: - S〈Narrow Type (Standard)〉 - B〈Wide Type〉 (3) Nominal Diameter (4) Material: - No notation〈Made of Steel〉 - S〈Made of Stainless Steel〉 - SMO354〈254SMO(R)〉 - ALL718〈Alloy718〉
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Company information
HEICO, a German company, was able to celebrate its 120th anniversary in 2020 since its founding in 1900. This is entirely thanks to the long-standing support of all of you, for which we are grateful. Since its establishment in 1900, HEICO has been manufacturing fastening components for 120 years. Our company is committed to continuous improvement of production processes and equipment as a fundamental principle in order to create the highest quality products that are "Made in Germany." We never neglect our efforts to enhance innovation for quality improvement. To improve product quality and production efficiency, we actively develop and manufacture our own unique tools and processing machines, implement in-house heat treatment and surface processing, and introduce process control systems. Moving forward, we aim to develop products that achieve "reliable, safe, and easy fastening," responding to our customers' needs based on the extensive know-how cultivated from our many years of experience and achievements.