Industrial Fastener · Washers Series
Conical Spring Washer
Conical (Belleville) spring washers are dished steel washers that act as a stiff spring under bolt preload. As the bolt is tightened, the cone partially flattens, storing significant elastic energy. This stored energy maintains clamp load through vibration, thermal cycling, and gasket creep.
Product Overview
Conical Spring Washer sourcing essentials
Conical (Belleville) spring washers are dished steel washers that act as a stiff spring under bolt preload. As the bolt is tightened, the cone partially flattens, storing significant elastic energy. This stored energy maintains clamp load through vibration, thermal cycling, and gasket creep.
DIN 6796 (heavy-duty), DIN 2093 (precision Belleville)
Spring steel, Stainless
Conical (Belleville) spring washers are dished steel washers that act as a stiff spring under bolt preload. As the bolt is tightened, the cone...
Inspection records, lot labels, certificate options, and destination-ready packing.
Technical Data
Specification range
Final dimensions, mechanical properties, finish, and packing are confirmed against the RFQ and applicable standard.
| Standards | DIN 6796 (heavy-duty), DIN 2093 (precision Belleville) |
|---|---|
| Size Range | M3 – M30 |
| Material | Spring steel, Stainless |
| Surface Finish | Phosphate, Mechanical zinc, Stainless |
Common surface finishes
Select an option to review its sourcing note. Exact coating system, thickness, and corrosion requirement are confirmed with the order.
Quality Control
Checked before consolidation and export
Each order is matched to the specified standard and verified at practical control points before shipment.
RFQ confirmation
Standard, size, grade, pitch, finish, certificates, packing, and destination are locked before production.
Lot verification
Critical dimensions, thread fit, markings, finish appearance, and packing labels are sampled and recorded.
Shipment approval
Photos and required reports are organized before consolidated loading and export documentation.
Buyer Questions
Frequently asked questions
How is a Belleville washer different from a split lock washer?
A Belleville washer is far stiffer and stores much more elastic energy. Under preload it doesn't fully flatten — it acts as an active spring maintaining clamp load. A split lock washer fully flattens and provides essentially negligible reserve. For maintaining preload over time, Bellevilles work; split locks largely don't.
Ready to quote Conical Spring Washer?
Send the standard, size, grade, finish, quantity, packing requirement, and destination. Availability and lead time are confirmed with the inquiry.