Ratchet & Pawls

Standard Materials
Steel S45C

Outside Diameter
Max. 200mm
Min. 33mm

Pitches
2.09mm, 3.14mm, 6.28mm, 9.42mm, 12.56mm

Face Width
6mm – 25mm

Notes
Ratchets with hubs can be made to order.

• Contact us to get the full HPC Catalog by Post
• We can manufacture a non standard part per drawing

Ratchets & Pawls: A Guide to Their Design and Applications

Ratchets and pawls are essential mechanical components used to control motion in one direction while preventing motion in the opposite direction. They are commonly found in a wide range of applications, including tools, machinery, and devices requiring controlled rotational or linear movement.

How Ratchets and Pawls Work

A ratchet is a toothed wheel or bar that allows motion in one direction. The pawl is a lever or catch that engages the teeth of the ratchet, locking it against movement in the opposite direction. When force is applied in the allowed direction, the pawl slides over the teeth of the ratchet, creating the characteristic clicking sound often associated with these mechanisms.

Standard Materials and Dimensions

• Material:
  • Steel S45C is the standard material used for ratchets and pawls due to its excellent balance of strength, hardness, and machinability.
• Outside Diameter:
  • Maximum: 200mm
  • Minimum: 33mm
• Pitches:
  • Available in 2.09mm, 3.14mm, 6.28mm, 9.42mm, and 12.56mm, allowing customization for various applications.
• Face Width:
  • Ranges from 6mm to 25mm, offering flexibility in design for different load and space requirements.

Customization and Additional Features

• Custom Manufacturing:
  • Ratchets with hubs can be made to order, providing solutions tailored to specific mechanical designs.
  • Non-standard parts can also be manufactured per customer-provided drawings, ensuring compatibility with unique systems.

Applications

• Tools:
  • Commonly used in wrenches to allow tightening or loosening of fasteners in confined spaces.
• Winches and Hoists:
  • Prevent reverse motion under load, ensuring safety.
• Machinery:
  • Control incremental motion or prevent reverse rotation in automated systems.
• Clocks and Watches:
  • Regulate motion for precise timekeeping.

Why Choose Our Ratchets and Pawls?

• High-quality steel construction ensures durability and reliability.
• Wide range of standard sizes and pitches meets diverse requirements.
• Custom manufacturing capabilities allow tailored solutions for complex applications.