a-Level Round Nut Locking Nut Anti-Loosening Nut for Superior Strength

• Customization: Available
• Material: Carbon Steel
• Type: Round Head
• Model NO.: 1-1
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN
• Grade: 8.8
• Surface Treatment: Oxidation Black
• Product Grade: a-Level
• Thread Type: Full Thread
• Applicable Industries: Construction, Industry
• Transport Package: Container
• Specification: 1-100
• Trademark: Huilin
• Origin: Handan, Hebei
• HS Code: 0101101010
• Production Capacity: 50000

Product Description

Enchanting Overview of the Anti-Retreat Round Nut: A meticulous design that combines innovation and strength to ensure unparalleled security in fastening solutions.

The Anti-Loosening Round Nut, often referred to as the Anti-Loosening Round Nut or simply Round Nut, embodies a remarkable engineering feat. This specialized nut employs a robust mechanical or friction-based anti-loosening mechanism, offering steadfast security. Ideal for axial fixation of shaft components like rolling bearings, it tirelessly prevents unwarranted loosening from vibrations or impacts. Dive into its core features and discover its versatile uses:

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1, Basic Definition

The Anti-Backlash Round Nut is a precision-crafted thin-walled annular structure. It boasts a fine-threaded inner hole ranging from M10 × 1 to M200 × 3, accompanied by an outer circle groove or opening. This ingenious nut is designed for use with a stop washer, colloquially termed the "Wang Ba pad." The anti-loosening principles unfold in two primary categories:

Mechanical Locking: A triumphant synergy is achieved when the inner and outer teeth of the stop washer embed into the nut groove and shaft keyway, forming an unyielding rigid limit.

Friction Anti-Loosening: Select models feature a wedge-shaped inclined surface or an engineering plastic-coated surface, heightening the friction between threads. Exemplified by HARDLOCK nuts, this technique exemplifies sophisticated engineering prowess.

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Structural Features

1. Slot Design:

Equipped with equidistant open slots on the outer circle, these slots harmonize with the outer teeth of the stop washer. Upon installation, bent washer teeth lock in place, achieving mechanical locking with precision.

2. Material and Craftsmanship:

Carbon Steel (45# Steel): After undergoing meticulous heat treatment, the hardness ascends to HRC35-45, rendering it ideal for diverse industrial applications.

Stainless Steel (304/316): Known for its formidable corrosion resistance, this material is perfectly suited for humid or chemically intense environments.

Surface Treatment: Options include blackening, galvanizing, or the application of engineering plastics, each enhancing wear resistance and rust prevention to meet specific needs.

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3, Anti-Loosening Mechanism

1. Mechanical Locking Type:

Through the synchronized locking of the inner and outer teeth of the stop washer into their respective keyway and groove, this mechanism restricts any relative rotation between the nut and shaft. Tailored for high-vibration environments such as elevators and mining machinery.

2. Friction Anti-Loosening Type:

Wedge Slope Design: Employing an eccentric wedge-shaped contact surface, this design evenly distributes locking force. With exceptional anti-vibration capabilities, it is the choice for prestigious projects like Japan's Shinkansen.

Plastic Spraying Technology: This involves spraying engineering plastic onto the threaded surface, which undergoes elastic deformation upon tightening, thus amplifying friction. Note its temperature limitation of -50 ºC to 120 ºC.

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4, Application Scenarios

Bearing Fixation: Crucial for the axial locking of rolling bearings, this application confidently averts any shaft movement.

Heavy Machinery: Designed to endure the formidable vibration loads at shaft ends in mining equipment and bridge steel structures, ensuring secure fastening.

Rail Transit: From high-speed rail hubs to bogie assemblies, wedge-shaped anti-loosening nuts are indispensable for sustaining long-term stability and safety.