PRODUCT CATALOGUE
KFA Piston Guide Rings
KFA Piston Guide Ring
Function and UsageKFA Piston Guide Ring plays a supporting and guiding role to the piston, which can bear high load, with low wear, and other characteristics.The special design structure makes the installation more reliable and stable. It is mainly used for heavy load condition.
Advantage
--Good pressure bearing capacity
--Inclined slice design is easy to install, and also, with high stability
--Low friction coefficient of material, long service life
Material
Filled Polyoxymethylene Delrin (POM) Our Material Code: S802
Technical Data
Working Temperature：-55℃ to +225℃ (Temperature refer to the material)
Speed: ≤1m/s
Dynamic Pressure:≤75N/mm² (60℃)
Working Medium: Mineral hydraulic oil, emulsion, water and other media
Tips: The operating limit to the load and temperature is maximum. In the actually usage, due to the interaction of work parameters the maximum must be lower.
Installation
Groove: Closed
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. The special design of KFA guide ring requires a high fitting surface tolerance for the components.
Example of the Order Part No. :
KFA Guide Ring
Series No.: KFA Cylinder Diameter: d=100mm
Part Number: KFA100092S802
KFA: Series Number
100: Cylinder Diameter
092: Groove Diameter
S802:Material Code
| KFA Piston Guide Ring | ||||||
 |
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| D | d | D1 | b | c | a | Part No. |
| 40 | 32 | 36 | 12 | 3.5 | 4.7 | KFA040032 |
| 45 | 37 | 41 | 12 | 3 | 4.7 | KFA045037 |
| 50 | 42 | 46 | 12 | 3 | 6.2 | KFA050042 |
| 55 | 47 | 51 | 12 | 3 | 6.2 | KFA055047 |
| 56 | 48 | 52 | 12 | 3 | 6.2 | KFA056048 |
| 63 | 55 | 59 | 12 | 3 | 6.2 | KFA063055 |
| 65 | 57 | 61 | 12 | 3 | 6.2 | KFA065057 |
| 70 | 62 | 66 | 12 | 3 | 6.2 | KFA070062 |
| 75 | 67 | 71 | 12 | 3 | 6.2 | KFA075067 |
| 80 | 72 | 76 | 10.6 | 3 | 3.8 | KFA080072A |
| 80 | 72 | 76 | 14 | 3 | 7.2 | KFA080072B |
| 85 | 77 | 81 | 14 | 3 | 7.2 | KFA085077 |
| 90 | 82 | 86 | 14 | 3 | 7.2 | KFA090082 |
| 100 | 92 | 96 | 10.6 | 3 | 3.8 | KFA100092A |
| 100 | 92 | 96 | 14 | 3 | 7.2 | KFA100092B |
| 105 | 97 | 101 | 14 | 3 | 7.2 | KFA105097 |
| 110 | 102 | 106 | 14 | 3 | 7.2 | KFA110102 |
| 120 | 112 | 116 | 10.6 | 3 | 3.8 | KFA120112A |
| 120 | 112 | 116 | 14 | 3 | 7.2 | KFA120112B |
| 125 | 115 | 121 | 17.5 | 4 | 9.2 | KFA125115 |
| 130 | 120 | 126 | 12.6 | 4 | 4.3 | KFA130120A |
| 130 | 120 | 126 | 17.5 | 4 | 9.2 | KFA130120B |
| 140 | 130 | 136 | 17.5 | 4 | 9.2 | KFA140130 |
| 150 | 140 | 146 | 17.5 | 4 | 9.2 | KFA150140 |
| 160 | 150 | 156 | 17.5 | 4 | 9.2 | KFA160150 |
| 170 | 160 | 166 | 20 | 6 | 9.2 | KFA170160 |
| 180 | 170 | 176 | 20 | 6 | 9.2 | KFA180170A |
| 180 | 170 | 175 | 24 | 7 | 8.5 | KFA180170B |
| 190 | 180 | 186 | 20 | 4.5 | 11.7 | KFA190180 |
| 200 | 190 | 196 | 20 | 4.5 | 11.7 | KFA200190 |
| 210 | 200 | 206 | 25 | 8 | 11.7 | KFA210200 |
| 220 | 210 | 216 | 25 | 8 | 11.7 | KFA220210 |
| 225 | 215 | 220 | 24 | 7 | 8.5 | KFA225215A |
| 225 | 215 | 221 | 25 | 8 | 11.7 | KFA225215B |
| 230 | 220 | 226 | 25 | 8 | 11.7 | KFA230220 |
| 240 | 230 | 236 | 33 | 15 | 11.7 | KFA240230 |
| 250 | 240 | 246 | 33 | 15 | 11.7 | KFA250240 |
| 275 | 265 | 271 | 33 | 15 | 11.7 | KFA275265 |
| 280 | 270 | 276 | 33 | 15 | 11.7 | KFA280270 |
| 290 | 280 | 286 | 33 | 15 | 11.7 | KFA290280 |
| 300 | 290 | 296 | 33 | 15 | 11.7 | KFA300290 |
| 310 | 298 | 304 | 35 | 8.5 | 13.25 | KFA310298 |
| 320 | 308 | 314 | 35 | 8.5 | 13.25 | KFA320308 |
| 340 | 328 | 334 | 35 | 8.5 | 13.25 | KFA340328 |
| 350 | 338 | 344 | 35 | 8.5 | 13.25 | KFA350338 |
| 360 | 348 | 354 | 35 | 8.5 | 13.25 | KFA360348 |
| If any special requirements of the materials and sizes, please contact with us. | ||||||
