A Disc Cup Bearing Bowed Coil Coned Disk Washer | Exporter
2026 PREMIUM SUPPLIER
A Disc Cup Bearing Bowed Coil Coned Disk Washer โ
Engineered Precision for Global B2B Buyers
โ Stop overpaying for inconsistent spring washers. Direct factory sourcing for disc cup bearing bowed coil coned disk washers โ ISO/CE certified, 30+ countries served, 24h quoting.
๐ Free samples available | OEM/ODM welcome | ERP integration ready
โ ๏ธ The Hidden Cost of Cheap Spring Washers
When you source a spring washer from uncertified suppliers, the real price isn't on the invoice โ it's in downtime, rework, and lost contracts. Here are the five pain points we hear every week from corporate purchasers and technical directors across Europe and North America:
73% of procurement managers report that disc washers from low-cost suppliers fail tolerance checks (source: internal audit data, 2025). A 0.1mm deviation in a coned disk spring can cause bolt loosening at 80Nm torque.
A bearing spring washer that fails mid-cycle forces emergency maintenance. One automotive plant in Germany lost โฌ47,000 in a single shift because of a bowed spring washer that collapsed under load.
Typical Asian suppliers quote 45โ60 days. For a coil spring washer used in agricultural machinery, that delay can push a whole harvest season. You need high-speed delivery โ we ship within 15 days for standard orders.
No CE, no FCC, no RoHS โ many disk spring washer vendors can't provide traceable certifications. That means your compliance officer says no, and your competitor gets the deal.
You need a custom a spring washer is a type of fastener that fits your specific load curve. But most exporters just say "we only do standard." We offer OEM/ODM design with free CAD support.
๐ You don't need just any supplier. You need a partner who understands tolerance, torque, and timing.
โ Boen Fasteners: Your Trusted Exporter of Disc Cup Bearing Bowed Coil Coned Disk Washers
Since 2010, Handan Boen Fastener Manufacturing Co., Ltd. has been delivering precision-engineered spring washers to 30+ countries. We are not a trading company โ we are a manufacturing exporter with factory-direct pricing, full certification, and a 10-year track record.
Powerful Factory
8,000mยฒ production base in Handan, Hebei. 120+ skilled workers. 60+ press machines running 24/7.
Full Certification
ISO 9001, CE, RoHS, FCC, SGS reports. Every batch of disc washers is traceable.
High-Speed Delivery
15 days for standard orders. 25 days for custom bowed spring washer designs. Air freight available.
๐ Technical Specifications โ Disc Cup Bearing Bowed Coil Coned Disk Washer
Below are the standard parameters for our most popular series. Custom dimensions, materials, and finishes are available via OEM/ODM.
| Parameter | Disc Cup Washer | Bearing Spring Washer | Bowed Spring Washer | Coil Spring Washer | Coned Disk Spring |
|---|---|---|---|---|---|
| Material | Spring Steel 65Mn / SK5 | Stainless Steel 301/304 | Carbon Steel C67S | Phosphor Bronze / SS316 | Spring Steel 50CrV4 |
| Hardness (HRC) | 44โ48 | 40โ45 | 42โ47 | 38โ43 | 46โ50 |
| Load Capacity (N) | 800 โ 4,200 | 600 โ 3,800 | 500 โ 3,200 | 400 โ 2,800 | 1,000 โ 5,500 |
| Thickness (mm) | 0.5 โ 4.0 | 0.4 โ 3.5 | 0.6 โ 3.0 | 0.5 โ 2.5 | 0.8 โ 5.0 |
| Outer Dia (mm) | 8 โ 60 | 6 โ 50 | 8 โ 45 | 6 โ 40 | 10 โ 80 |
| Surface Finish | Zinc / Dacromet / Phosphate | Passivated / Electropolished | Zinc-Nickel / Black Oxide | Tin / Silver Plating | Phosphate + Oil / ZnNi |
๐ Note: All parameters can be customized. OEM/ODM welcome
๐ Agricultural Machinery
A coil spring washer in a tractor PTO shaft must withstand 1,200+ hours of vibration. We supplied 2.8 million pieces to a European OEM โ zero field failures in 18 months.
๐ Automotive & EV
A bearing spring washer in an EV battery pack requires consistent preload at 90ยฐC. Our coned disk spring design passed 500,000-cycle fatigue testing (ISO 16949).
๐๏ธ Construction & Structural
High-rise steel connections rely on disc washers to maintain tension under wind load. Our disk spring washer meets ASTM F436 and EN 14399.
โ๏ธ Industrial Machinery
A bowed spring washer in a gearbox compensates for thermal expansion. We custom-engineered a 0.3mm deflection with ยฑ0.02mm tolerance for a Swiss machine builder.
๐ Trusted by Industry Leaders in 30+ Countries
We don't just sell disc cup bearing bowed coil coned disk washers โ we build long-term partnerships with global brands.
+ 26 more global clients
โ
RoHS ยท SGS ยท CB ยท VDE compliant"We switched from a German supplier to Boen for coned disk springs. Cost down 37%, lead time reduced from 8 weeks to 18 days. Quality is identical โ we tested 5,000 pieces."
โ Lars H., Procurement Manager, Denmark (Agricultural Machinery)"Boen's bearing spring washers passed our 500-hour vibration test on the first try. Their engineering team helped us optimize the thickness for our EV battery pack."
โ Priya R., Technical Director, UK (Automotive EV)"The best disc washers we've sourced from Asia. Certifications were all in order, packaging was professional, and shipping was faster than expected."
โ Michael T., Supply Chain Manager, USA (Construction)"We needed a custom bowed spring washer for a new gearbox design. Boen provided CAD drawings, samples, and production in 22 days. Unbelievable speed."
โ Stefan G., R&D Engineer, Germany (Industrial Machinery)โ Frequently Asked Questions About Disc Cup Bearing Bowed Coil Coned Disk Washers
A spring washer is a type of fastener designed to provide axial flexibility and maintain bolt tension under vibration. Disc washers (including coned disk springs and bearing spring washers) are a subset of spring washers with a curved or conical profile. At Boen, we manufacture all variants: disc cup, bearing, bowed, coil, and coned disk washers.
Standard MOQ is 5,000 pieces per size. For OEM/ODM custom designs, MOQ is 10,000 pieces. However, we offer free samples (2โ5 pieces) for qualification testing. Contact us for sample requests.
We are ISO 9001:2015 certified. Our disk spring washers comply with CE, RoHS, FCC, and SGS standards. For automotive clients, we support IATF 16949 documentation. Certificates are available for download on request.
Absolutely. We specialize in OEM/ODM custom a spring washer designs. Send us your drawing, load requirements, or a sample โ our engineering team provides free CAD optimization and a quotation within 48 hours.
We accept T/T (bank transfer), L/C (letter of credit), PayPal, and Western Union. For first-time buyers, we recommend 30% deposit + 70% against copy of B/L. We also offer trade assurance on all orders.
Sea freight: 18โ28 days to US West Coast / Rotterdam. Air freight: 5โ7 days. We handle all customs documentation. Express (DHL/FedEx) for samples: 3โ5 days.
We offer a 12-month warranty against manufacturing defects. If any bearing spring washer fails under normal use due to material or process issues, we replace at no cost. Our zero-defect policy targets 99.8% on-time quality.
Yes. We integrate with Amazon, Shopify, and eBay platforms. We offer dropshipping-ready packaging and automated inventory updates. Our team handles duty/tax documentation for USA and EU markets.
โญ Real Reviews from Global Buyers
"Consistent quality on every batch of disc washers. We've ordered 6 times in 2025 โ zero defects."
โ Juan M., Supply Chain Lead, Spain โ โ โ โ โ
"The bearing spring washer samples arrived in 4 days. Our testing lab approved them immediately."
โ Amanda K., Purchasing Manager, Canada โ โ โ โ โ
"Best price-to-quality ratio for coned disk springs in the market. Our CFO is very happy."
โ David L., Operations Director, Australia โ โ โ โ โ๐ฌ Real Conversations with Our Clients
โ๏ธ About the Author โ James Chen
Senior Fastener Engineer & International Trade Specialist
With 14 years in the industrial fastener industry, James has overseen the production of over 200 million spring washers, disc washers, and coned disk springs for clients in 30+ countries. He is a certified ISO 9001 lead auditor and frequently speaks at B2B trade forums about supply chain optimization for precision fasteners. James leads the engineering team at Handan Boen Fastener Manufacturing Co., Ltd.
๐ Ready to Secure Your Supply Chain?
Get factory-direct pricing on disc cup bearing bowed coil coned disk washers โ with full certification and 15-day delivery.
๐ฏ Limited-time offer: Free samples + free CAD design for first-time OEM clients. Valid until 31 Dec 2026.
๐ Hanguang Industrial Park, Yongnian District, Handan City, Hebei, China | Daily 09:00 โ 17:00
๐ Your information is protected under our privacy policy. We never share your data with third parties.
