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Professional production of rubber membranes and rubber seals
Spring energy storage sealing ring Spring-energized seal Perfluoroether O-ring (FFKM) Fully wrapped O-ring Check valve Double layer wrapped O-ring Wrap rectangular circle O-RING Ultra low temperature -196 degree sealing component PEEK flood plug seal for specific machinery PCTFE rod plate material PEEK rod sheet material Shaft seal Hole sealing rotary seal
Shaft seal with Stele seal
Shaft seal with Stele seal
HOTLINE021-64501126 Consultation
DESCRIPTION / Introduction
Shaft seal with Stele seal
The shaft seal is composed of a low friction filled PTFE stepped ring and a rubber elastic body (O-ring). It is a coaxial sealing ring for piston rods and a one-way acting element, suitable for high-pressure system oil cylinders with high and low speed linear reciprocating motion. Due to the similar dynamic and static friction coefficients, it is the preferred choice for sealing servo oil cylinders. Using two shafts with a seal can achieve zero leakage, and it is generally used in conjunction with a guide ring to withstand the radial force of the piston rod. Choosing a double lip dust ring has a better effect.


Technical data
Pressure ≤ 80MPa
Speed ≤ 15m/s
Temperature -54 ℃~+200 ℃ (depending on the O-ring composite)
Medium petroleum based hydraulic oil, flame retardant hydraulic oil, environmentally friendly and safe hydraulic fluid (bio oil), water and others
Surface roughness Ra Rt
Piston rod surface ≤ 0.2 μ m ≤ 3 μ m
Bottom of groove ≤ 1.6 μ m ≤ 6.3 μ m
Groove side ≤ 1.6 μ m ≤ 16 μ m


advantage

- Good resistance to extrusion

- Stable size, not affected by temperature

- No trapped pressure will occur, so multiple sealing rings can be installed
- Excellent buffering effect on strong impact systems
- Excellent anti friction properties, low friction force, long service life Even after a long period of inactivity, there is no crawling phenomenon during startup

- Good dynamic and static sealing characteristics

- Suitable for any piston rod with a maximum diameter of 2500mm


Installation dimension data


Piston rod diameterdf8groove sizetrench widthMaximum radiusMaximum GapＳmax
standard conditionST200overload Type-/1light load Type-/2DH9L+0,2R10MPa20MPa40MPa
3-7,9--8-18,9d +4,92,20,40,300,200,15
8-18,9--19-37,9d +7,33,20,60,40,0,250,15
19-37,98-18,938-199,9d +10,74,21,00,400,250,20
38-199,919-37,9200-255,9d +15,16,31,20,500,300,20
200-255,938-199,9256-649,9d +20,58,11,50,600,350,25
256-649,9200-255,9650-999,9d +24,08,11,80,600,350,25
650-999,9256-649,9
d +27,39,52,50,700,500,30
≥1000d +38,013,83,01,000,700,60



Material for ordering shaft seals (unit: mm)


Order modelpiston rod
diameter df8		Groove diameter
DH9		trench width
L+0,2		Maximum radial clearance SmaxMaximum radius R
10MPa20MPa40MPa
ST200-0044,08,92,20,300,200,150,4
ST200-0055,09,92,20,300,200,150,4
ST200-0066,010,92,20,300,200,150,4
ST200-0077,011,92,20,300,200,150,4
ST200-0088,015,33,20,400,250,150,6
  ST200-008/28,012,92,20,300,200,150,4
ST200-01010,017,33,20,400,250,150,6
ST200-01212,019,33,20,400,250,150,6
ST200-01414,021,33,20,400,250,150,6
ST200-01515,022,33,20,400,250,150,6
ST200-01616,023,33,20,400,250,150,6
ST200-01818,025,33,20,400,250,150,6
ST200-02020,030,74,20,400,250,201,0
ST200-02222,032,74,20,400,250,201,0
ST200-02525,035,74,20,400,250,201,0
ST200-02828,038,7,20,400,250,201,0
ST200-03030,040,74,20,400,250,201,0
ST200-03232,042,74,20,400,250,201,0
ST200-03535,045,74,20,400,250,201,0
ST200-03636,046,74,20,400,250,201,0
ST200-03838,053,16,30,500,300,201,2
ST200-04040,055,16,30,500,300,201,2
ST200-04242,057,16,30,500,300,201,2
ST200-04545,060,16,30,500,300,201,2
ST200-05050,065,16,30,500,300,201,2
ST200-05555,070,16,30,500,300,201,2
ST200-05656,071,16,30,500,300,201,2
ST200-06060,075,16,30,500,300,201,2
ST200-06363,078,16,30,500,300,201,2
ST200-06565,080,16,30,500,300,201,2
ST200-07070,085,16,30,500,300,201,2
ST200-07575,090,16,30,500,300,201,2
ST200-08080,095,16,30,500,300,201,2
ST200-08585,0100,16,30,500,300,201,2
ST200-09090,0105,16,30,500,300,201,2
ST200-09595,0110,16,30,500,300,201,2
ST200-100100,0115,16,30,500,300,201,2
ST200-105105,0120,16,30,500,300,201,2
ST200-180180,0195,16,30,500,300,201,2
ST200-190190,0205,16,30,500,300,201,2
ST200-200200,0220,58,10,600,350,251,5
ST200-210210,0230,58,10,600,350,251,5
ST200-220220,0240,58,10,600,350,251,5
ST200-230230,0250,58,10,600,350,251,5
ST200-240240,0260,58,10,600,350,251,5
ST200-250250,0270,58,10,600,350,251,5
ST200-260260,0284,08,10,600,350,251,8
ST200-270270,0294,08,10,600,350,251,8
ST200-280280,0304,08,10,600,350,251,8
ST200-290290,0314,08,10,600,350,251,8
ST200-300300,0324,08,10,600,350,251,8
ST200-310310,0334,08,10,600,350,251,8
ST200-320320,0344,08,10,600,350,251,8
ST200-330330,0354,08,10,600,350,251,8
ST200-340340,0364,08,10,600,350,251,8
ST200-350350,0374,08,10,600,350,251,8
ST200-360360,0384,08,10,600,350,251,8
ST200-370370,0394,08,10,600,350,251,8
ST200-380380,0404,08,10,600,350,251,8
ST200-390390,0414,08,10,600,350,251,8
ST200-400400,0424,08,10,600,350,251,8
ST200-500500,0524,08,10,600,350,251,8
ST200-600600,0624,08,10,600,350,251,8
ST200-700700,0727,39,50,700,500,302,5
ST200-800800,0827,39,50,700,500,302,5
ST200-900900,0927,39,50,700,500,302,5
 ST200-10001000,01038,013,81,000,700,603,0
 ST200-11001100,01138,013,81,000,700,603,0
 ST200-12001200,01238,013,81,000,700,603,0
 ST200-13001300,01338,013,81,000,700,603,0
 ST200-14001400,01438,013,81,000,700,603,0
 ST200-15001500,01538,013,81,000,700,603,0