Stainless Steel DIN 6798J Double Conical Spring Washer

When clamped and compressed, the bidirectional taper generates stronger and more balanced restoring preload force, forming stable elastic support between bolt head and workpiece surface. Stainless Steel DIN 6798J Double Conical Spring Washer by Wanluo supplier perfectly solves the problems of insufficient pre-tightening force, uneven stress and easy loosening of single-sided washers under heavy load and strong vibration. With bidirectional self-leveling and dual anti-loosening performance, it is the preferred high-reliability fastener for heavy-duty mechanical connection and high-precision locking scenarios.

Hardware Structural Design & End-to-End Production Technology

DIN 6798J double conical washers are made of high-grade spring steel and corrosion-resistant stainless steel, adopting integral one-piece stamping, symmetrical double-taper forming and precision quenching & tempering treatment. The upper and lower opposite conical surfaces feature uniform radian and symmetrical elastic coefficient, realizing bidirectional balanced stress distribution during compression, effectively avoiding unilateral stress deviation. The double-sided smooth burr-free curved surfaces can perfectly fit bolt heads and mounting planes simultaneously, achieving dual-sided micro-leveling and gap compensation. After strict elastic calibration, the overall structure has ultra-high fatigue resistance and compression resistance, maintaining stable bidirectional elastic preload after millions of heavy-load compression cycles without permanent deformation or elastic attenuation. Standard dimensional tolerance ensures precise matching with all metric standard bolts, supporting standardized high-strength industrial assembly.

Product Parameter

Comprehensive Product Strength & Diversified Industry Usage

1. Innovative double-sided opposite conical symmetrical structure provides bidirectional elastic preload force, realizing balanced stress on both bolt end and workpiece surface. It completely avoids unilateral stress deviation and loose fastening caused by uneven compression of single-sided washers.

2. Higher elastic output and compression resistance than DIN 6798A single conical washers, capable of sustaining heavy load and strong alternating vibration impact. It can automatically compensate for large thread gaps and thermal deformation gaps, maintaining zero-loosening connection stability.

3. Dual-sided self-leveling function corrects assembly tilt and plane deviation in two directions, greatly improving the verticality and flatness of bolt assembly, effectively reducing equipment operation jitter and improving overall assembly precision.

4. Integral reinforced forming and high-temperature toughening treatment endow the washer with excellent anti-fatigue performance, no elastic attenuation or structural deformation after long-term heavy-duty operation, far exceeding the service life of ordinary spring washers.

5. Adaptable to harsh heavy-load working conditions, widely used in engineering machinery, wind power equipment, automotive heavy-duty parts, hydraulic equipment, railway facilities and other high-reliability locking assembly scenarios.

FAQ

Q1: What is the core difference between DIN 6798J and DIN 6798A?

A1: DIN 6798A is single-sided conical with one-way elastic force, suitable for light and medium-load precision leveling; DIN 6798J adopts double opposite conical bidirectional elastic structure, with doubled preload force and balanced stress, specially designed for heavy-load, strong-vibration high-strength anti-loosening connection.

Q2: Is DIN 6798J suitable for heavy vibration equipment?

A2: Yes. The bidirectional symmetrical elastic structure can resist strong vibration and mechanical impact without loosening or failure. It is an upgraded alternative to ordinary spring washers and single conical washers for harsh working conditions.

Q3: Does DIN 6798J need to be used with flat washers?

A3: It can be used independently for heavy-load locking. For ultra-precision surface protection scenarios, matching with DIN 125 flat washers is recommended to achieve dual effects of heavy-duty anti-loosening and workpiece protection.

Q4: What advantages does it have over DIN 127 spring washers?

A4: DIN 127 relies on split biting for locking and is prone to fatigue failure under heavy vibration; DIN 6798J uses integral bidirectional elastic preload for locking, with uniform stress, no workpiece damage, stronger stability and longer fatigue life.

Q5: Can customized reinforced specifications be provided?

A5: Yes. We support customizing thickened heavy-duty models, enhanced elastic coefficient, special sizes and super anti-corrosion surface treatment to meet heavy-load and harsh environment fastening requirements.