Tab Washers With Long And Short Tab

The Tab washers with long and short tab produced by the Xiaoguo® factory are locked mechanically rather than by friction. The mechanical locking fundamentally prevents rotation and the locking effect is very obvious.

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Product Description

The Tab washers with long and short tab, which complies with DIN 463 mechanical locking ring, is a single-piece, purely mechanical locking anti-loosening ring. It is formed through a single die-casting process, featuring one long ear piece and one short ear piece, with the two ear pieces forming an approximately 90° angle. It is used for hexagonal bolts / nuts, achieving anti-loosening through the bending of the one long and one short ear piece, and is suitable for high-vibration, dynamic load and thermal expansion and contraction conditions. This structure can completely prevent the relative rotation of the nut or bolt, achieving reliable mechanical locking.

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Structural features

The structural features of Tab washers with long and short tab are as follows:

（1）Integrated stamping molding

The entire Tab washers with long and short tab is made from a single sheet of metal through the cold stamping process. There is no welding or additional components, resulting in a simple structure, high strength and low cost.

（2）Double-ear design (one long and one short)

The main body of the Tab washers with long and short tab is circular, and two ear pieces extend outward along the outer edge:

Short Tab: Short in length

Long Tab: Longer in length

The two ear pieces form an angle of approximately 90 degrees with each other.

（3）There is a stress release structure at the root of the ear piece.

At the connection point between the ear piece and the circular body, rounded corners or slight width contraction are designed to reduce stress concentration during bending and prevent the ear piece from breaking.

（4）Cylindrical body

The thickness of the body is uniform. There are no teeth or inclined surfaces on the body, and the surface is usually smooth.

< style="text-align:center;"> Tab Washers With Long And Short Tab

Mon	φ3	φ 4	φ5	φ6	φ8	φ10	φ12	φ14	φ16	φ18	φ20
d max	3.5	4.5	5.6	6.76	8.76	10.93	13.43	15.43	17.43	19.52	21.52
d min	3.2	4.2	5.3	6.4	8.4	10.5	13	15	17	19	21
dc max	10	14	17	19	22	26	32	32	40	45	45
dc min	9.64	13.57	16.57	18.48	21.48	25.48	31.38	31.38	39.38	44.38	44.38
L min	11.65	13.65	15.65	17.65	19.58	21.58	27.58	27.58	31.5	35.5	35.5
L max	12.35	14.35	16.35	18.35	20.42	22.42	28.42	28.42	32.5	36.5	36.5
h	0.4	0.4	0.5	0.5	0.5	0.5	1	1	1	1	1
b1	7	9	11	12	16	19	21	25	32	38	38
r	2.5	2.5	2.5	4	4	6	10	10	10	10	10