lockring

Thân thiện

A mechanic tightens the lockring onto the axle of a bicycle wheel.

Definition

Noun: A lockring is a type of washer designed to prevent a nut from loosening or rotating unintentionally due to vibration or movement. It functions as a locking device in mechanical assemblies.

Usage

A lockring is used in mechanical and engineering contexts to secure fasteners. It is typically installed between a nut and the surface it is tightened against, or sometimes in conjunction with another nut, to create friction and prevent rotation.

Examples

• The mechanic installed a lockring on the axle nut to ensure it wouldn't come loose during the race.
• For safety, always use a lockring with the main nut on high-vibration machinery.
• The assembly diagram shows the lockring positioned directly under the flange nut.

Advanced Usage

• In bicycle maintenance, a lockring is a specific component used to secure a cassette or a threaded bottom bracket cartridge in place. This usage is a specialized application of the general locking principle.
  • Example: You need a special tool to tighten the cassette lockring on the rear wheel.

Variants and Related Words

• Lock washer (noun): A more general term for any washer designed to prevent loosening. A lockring is a specific type of lock washer, often circular with a designed feature (like teeth, ridges, or a bent shape) to bite into surfaces.
• Locknut (noun): A nut that has a built-in feature (like a nylon insert or deformed threads) to resist loosening, serving a similar purpose as a lockring and nut combination.

Synonyms

• Lock washer
• Anti-rotation washer
• Safety washer

Related Phrases

• To secure with a lockring: The action of using a lockring to fasten something.
  • Example: The bearing must be secured with a lockring to maintain proper alignment.

Học thuật

Noun

1. washer that prevents a nut from loosening

Từ đồng nghĩa

• lock ring
• lock washer