How to find the right Curved Washers AI guide
Written by an AI model from its trained knowledge.
What the AI looks for in Curved Washers
- Fit on the shaft or bolt
- The inner diameter must clear the shaft or bolt, and the outer diameter must fit the bore or counterbore it sits in. A tight ID binds and a large OD lets the washer walk off-center.
- Load and deflection
- Choose by the load at working height and the available deflection, not by thickness alone. Curved washers give light, low-rate preload. Too stiff a washer flattens immediately and acts as a plain shim.
- Duty level
- Use curved washers for light take-up of end play. Move to a wave washer or Belleville (conical) washer when you need more force in the same space. A single curve gives the lowest load of the spring washer types.
- Material
- Carbon spring steel for dry, indoor use. 302/17-7 stainless where there is moisture or heat. Corrosion and relaxation are the usual failure modes.
Brands that matter
- Associated Spring Raymond: Long-established source of curved, wave and disc spring washers.
- Smalley: Known for wave springs. Useful when a curved washer is too weak.
- Lee Spring: Spring maker with stock spring washers.
What to avoid
- Using a curved washer as a lock washer: it adds light preload but does not prevent loosening under vibration.
- Buying by bolt size alone without checking load at working height.
Questions
Curved, wave or Belleville?
For the same envelope, curved gives the least force, wave gives moderate force with more deflection, and Belleville (conical) gives high force with short travel.