KZK Rotary Seals

Function and Usage
KZK Rotary Seal is composed of a high wear resistance, low friction filled PTFE slip ring, and a rubber o ring. The O ring provides preload, compensate to the wear of the slip ring. At the same time,, according to the slip ring section size, processing one or two annular grooves in the sealing surface to form a lubricating oil cavity, further reduces the friction force, enhances the sealing surface specific pressure, achieves the good sealing effect. The standard KZK rotary seals are used to the sealing condition which do have rotate or swing rods, shafts, pins, swivel joints, and etc.
 
Advantage
--Small frictional force
--Start no creep, no stick
--Wear resistance, good dimensional stability
--Simple trench, easy to install
--With a lubrication chamber
 
Material
Slip Ring Material: Filled PTFE   Our Material Code: T605
Elastomer Material: Nitrile Rubber (NBR)   Our Material Code: N800  
Combination Code: T605N
 
If the working condition is under high temperature or chemical resistant medium, we suggest to use FKM for the elestomer , Our Material Code: F800. Combination Code: T605F
 
If the working condition is under low temperature, we suggest to use low temperature resistance Nitrile Rubber (NBR) for the elestomer , Our Material Code: NV705, Combination Code: T605NV
 
Technical Data
Working Pressure: ≤40MPa
Speed: ≤2m/s  
Working Temperature: Nitrile Rubber (NBR)   -35℃ to +120℃ 
                   FKM  -20℃ to +200℃ 
When the working temperature is greater than 60℃, the continuous working pressure must be reduced.
Working Medium: Hydraulic oil, emulsion, water, air, and etc.
Tips: Limit value of the above data, can not be used at the same time. The maximum working pressure depends on the type of material, the pressure, the temperature, the gap, and etc.. In actual usage, due to the mutual influence of working parameters, the maximum value setting is lower.
 
Installation
Groove: Both Closed and Opened (Open type groove is recommended for the limit diameter and limit cross section.)
In order to avoid the damage of the seals, during the installation, the seals should be leave away with the shape edge of the parts and tools. The sharp edges and burr in the installation area of the seal must be removed.
 
Example of the Order Part No. :
KZK Rotary Seal
Series No.: KZK  Cylinder Diameter: D=100mm 
Part Number: KZK10004T605N
KZK : Series Number
100: Cylinder Diameter
04: Groove Diameter
T605N: Material Code
 

Series No.	O Ring CS （mm）	Recommended Standard  Cylinder Bore Diameter Range              d(mm)		Groove Diameter  d(mm)	Groove Width L(mm)	Chamfer radius r	Maximum Clearance    E(mm)
		≥	≤				25MPa	40MPa
KZK	1.8	10	38	D-4.9	2.2	0.40	0.15	0.10
	2.65	40	75	D-7.5	3.2	0.60	0.20	0.15
	3.55	80	130	D-11	4.2	1.00	0.20	0.15
	5.3	135	320	D-15.5	6.3	1.30	0.20	0.15

When the pressure is more than 40MPa, it is recommended to reduce the extrusion gap, or please contact with us for the best sealing solution.

KZK Rotary Seal
D	d	L	C	Part No.
10	5.1	2.2	4	KZK01002
12	7.1	2.2	4	KZK01202
14	9.1	2.2	4	KZK01402
15	10.1	2.2	4	KZK01502
16	11.1	2.2	4	KZK01602
18	13.1	2.2	4	KZK01802
20	15.1	2.2	4	KZK02002
22	17.1	2.2	4	KZK02202
25	20.1	2.2	4	KZK02502
28	23.1	2.2	4	KZK02802
30	25.1	2.2	6	KZK03002
32	27.1	2.2	6	KZK03202
35	30.1	2.2	6	KZK03502
38	33.1	2.2	6	KZK03802
40	32.5	3.2	6	KZK04003
42	34.5	3.2	6	KZK04203
45	37.5	3.2	6	KZK04503
48	40.5	3.2	6	KZK04803
50	42.5	3.2	6	KZK05003
55	47.5	3.2	6	KZK05503
60	52.5	3.2	6	KZK06003
63	55.5	3.2	6	KZK06303
70	62.5	3.2	6	KZK07003
75	67.5	3.2	6	KZK07503
80	69	4.2	8	KZK08004
85	74	4.2	8	KZK08504
90	79	4.2	8	KZK09004
95	84	4.2	8	KZK09504
100	89	4.2	8	KZK10004
105	94	4.2	8	KZK10504
110	99	4.2	8	KZK11004
115	104	4.2	8	KZK11504
120	109	4.2	8	KZK12004
125	114	4.2	8	KZK12504
130	119	4.2	8	KZK13004
135	119.5	6.3	10	KZK13506
140	124.5	6.3	10	KZK14006
150	134.5	6.3	10	KZK15006
160	144.5	6.3	10	KZK16006
170	154.5	6.3	10	KZK17006
180	164.5	6.3	10	KZK18006
190	174.5	6.3	10	KZK19006
200	184.5	6.3	10	KZK20006
210	194.5	6.3	10	KZK21006
220	204.5	6.3	10	KZK22006
240	224.5	6.3	10	KZK24006
250	234.5	6.3	10	KZK25006
260	244.5	6.3	10	KZK26006
270	254.5	6.3	10	KZK27006
280	264.5	6.3	10	KZK28006
300	284.5	6.3	10	KZK30006
320	304.5	6.3	10	KZK32006
If any special requirements of the materials and sizes, please contact with us.