We have 45 kinds of O-Ring kit, they include AS-568 standard, Japanese standard, European standard and many mixed standards. We can also customize the O-ring kit according to the size you need.

We produce NBR O-Ring by molding, then box them. We can control their dimension very precisely. The minimum tolerance can be ±0.08mm.

O Ring Kit Includes​

10 - 4J5140

10 - 4J5267

10 - 4J0520

10 - 4J0522

10 - 4J0524

10 - 4J0527

4C-4782 0-RNG KIT 4J0524 6V9746 5K9090 6V8400 8T0315 6K6307
4C-4782 0-RNG KIT 4J0525 4J0521 4J0519 4J5140 3D2824 2S4078
4C-4782 0-RNG KIT 4J0526 4J0522 4J0520 4J5267 2M9780 7M8485
4C-4782 0-RNG KIT 4J0527 4J7533 4J0204 3J7354 1J9671 3J1907 4K1388
4C-4782 0-RNG KIT 4J0523 4J5477 6V8397 6V8398 7J9108 3K0360 304606
4C-4784 CATEEEEEEEEEEERPILAR OEM D-RING 1P3706 1P3705 1P3702 1P3700 1P3704 1P3703 1P3709 1P3708 1P3707
4C-8253 0-RING KIT 8M-4390 8M-4443 8M5240 8M-5254 9H-6067 9M9647
4C-8253 4C-8254 0-RING KIT 8M-4436 8M4432 8M4988 8M-4446 8M-4445 8M4435 8M-4991
4C-8253 4C-8254 0-RING KIT 8M-5010 8M4992 8M4987 8M-5248 1S0004 9M-7002
4C-8253 O-RING 8M-5252 8M5661 8M4986 8M4990 9M-4849 2S-2251

KOMATSU,KOBELCO,SUMITOMO,HITACHI,CATEEEEEEEEEEERPILLR,cx,DAEWOO,HYUNDAI,EC and more

O-rings are one of the most common seals used in machine design because they are inexpensive,

easy to make, reliable, and have simple mounting requirements.

The O-ring may be used in static appliCATEEEEEEEEEEEEions or in dynamic appliCATEEEEEEEEEEEEions where there is relative motion between the

parts and the O-ring.

Dynamic examples include rotating pump shafts and hydraulic cylinder pistons.