Colored O-Ring Chain and X-Ring Chain (420, 428, 520 etc.)
X-ring chains and O-ring chains :420\428\428H\520\520H
O-ring chain is mainly suitable for the adverse environment, such as water,mud,or dust.So It 's more demanding for its performance.And the service life is about 3-5 times than standard chains
1. The "O" ring or "X" ring will greatly reduce the wearing.
2. Model: 420V, 428V, 428VM, 520V, 428V-X, 428VM-X, 520V-X, 420Hz, 428Hz, 520NZ,
3. Color: Self, gold, nickel, blue, red, orange, green, yellow, pink etc.
4. Certificate of Quality: ISO 9001: 2000,
5. The grease is made in USA.
6. O-ring and X-ring are made in Tianwan.
7. The chains have high tensile strength.
8. Quad-rited pins(pitch≥ 15.875mm)
9. The sealing performance of X-ring is better than O-ring.
Products are made of high quality alloy steel production. The plates are punched and squeezed bores by precision technology. The pin, bush, roller are machined by high-efficiency automatic equipment and automatic grinding equipment, then through heat treatment of carburization, carbon and nitrogen protection mesh belt furnace, surface blasting process etc. Assembled precision by Internal hole position, spin riveted by pressure to ensure the performance of the entire chain.
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