Babsl Hydraulic Pump Seal

Babsl Hydraulic Pump Seal

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Babsl Hydraulic Pump Seal

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Hydraulic Pump Oil Seals Solutions from China - NNK

Hydraulic Pump Oil Seals keep the lubricating medium in a defined space. They also protect the seal space from dirt, dust and other potentially damaging contaminants. For example, in a high-pressure hydraulic pump operating environment, the entire sealing system consisting of the shaft seal, shaft housing, fluid media and environment determines the required seal function and durability. Therefore, select a product that is easy to replace and install that provides a leak-free seal in a variety of operating environments. This selection should provide a low friction seal, thereby minimizing power loss and heat generation.

Hydraulic Pump Oil Seals are manufactured to strict quality standards and are always under control in accordance with common international specifications. This benefits the user, who is assured of a certain quality and fit, regardless of the manufacturer of the product. For continuity, typical names of oil seals include type, shaft diameter, outside diameter, height and material.

 

Hydraulic Pump Oil Seal Materials

A wide range of standard materials and an extended range of special materials are designed to handle most conventional oil seal applications. Among the standard seal types, NBR is the most widely used material.

NBR is characterized by good mechanical properties, high abrasion resistance, high tensile strength, low permeability, low compression set and high resistance to petroleum-based oils and fuels, silicone greases, hydraulic fluids, water and alcohols.

NBR is a copolymer of butadiene and acrylonitrile (ACN). The acrylonitrile content can vary from 18% to 50% depending on the application. Low ACN content improves cold flexibility at the expense of oil and fuel resistance. High ACN content increases resistance to oil and fuels while decreasing cold flexibility and increasing compression set. 

For oil seal materials, NNK does not recommend the use of:

- Fuels with high aromatic content, such as jet fuel, diesel, high octane gasoline and gasoline.
- Aromatics, such as toluene, naphthalene, phenanthrene, trinitrotoluene and o-dihydroxybenzene.
- Chlorinated hydrocarbons, such as the insecticide DDT and vinyl chloride, which are produced in large quantities to produce polyvinyl chloride and are produced to produce insecticides, solvents, precursors for various industrial processes, coatings, polymers and synthetic rubber products.
- Non-polar (lipophilic) solvents that dissolve non-polar substances such as oils, fats and greases. Examples include carbon tetrachloride, benzene, ethyl ether, hexane and methylene chloride.
- HFD fluids, anhydrous, synthetically produced and fire resistant.
- Brake fluid DOT 3 (glycol type); ethylene propylene diene monomer (EPDM) rubber is the material of choice for this application.
- Ozone; EPDM, FKM and PTFE recommended

Fluorinated rubber (FKM) is another common material characterized by resistance to ozone, weathering and aging. (e.g. acetic acid). 

Polytetrafluoroethylene (PTFE) is a fluorinated thermoplastic material that has many positive properties for use as a sealing material. These include high heat resistance and virtually unlimited chemical resistance. Compared to NBR and FKM materials, PTFE has the lowest coefficient of friction, making it most suitable for dynamic applications. The oil seal consists of PTFE and a filler. However, PTFE does not have any elastic properties and is usually energized with other complementary materials, such as elastomers or spring steel.

The most important seal materials in this group are:

- NBR (acrylonitrile butadiene). It has good mechanical properties, including abrasion resistance, and can be adapted to different tasks by varying the acrylonitrile content for a temperature range of -20°C to 100°C (-4°F to 212°F).

- FKM can be used even at temperatures up to
FKM is highly resistant to mineral oils and HFD fluids even at temperatures up to 200°C (392°F).


Standard and Special Seal Types

Operating parameters will typically determine whether the application requires a standard or special seal solution. As a rule of thumb, all standard seals are designed for non-pressure applications. If overpressure occurs in the unit to be sealed during operation, check that the vents are clean and open them if necessary, or use special seals designed for high pressure applications. However, standard types can control pressures up to 0.05 MPa (7 psi). 

If the application requires higher than normal pressures, special types and profiles using advanced materials or profiles can be used. hydraulic Pump Oil Seal consists of a shorter, harder seal lip than the standard seal type to prevent increased contact pressure. hydraulic Pump Oil Seal is designed for pressures up to 1.0 MPa (145 psi). The reinforcement ring is pulled down on the shaft diameter to better support the seal lip. The lower flexibility of the seal lip requires tighter tolerances in terms of dynamic runout and deflection. Application limitations depend on shaft speed and diameter.

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Category Type NO Size NO Size NO Size NO Size
oil seal BABSL 1 12-19-5 101 22-45-7 201 42-55-7 301 70-85-10
oil seal BABSL 2 12-20-5 102 22-47-7 202 42-55-8 302 70-90-10
oil seal BABSL 3 12-22-5 103 22-47-10 203 42-55-10 303 70-90-12
oil seal BABSL 4 12-22-7 104 24-35-6 204 42-62-7 304 70-95-10
oil seal BABSL 5 12-24-4.5 105 24-35-7 205 42-62-8 305 70-95-13
oil seal BABSL 6 12-24-7 106 24-37-7 206 42-72-8 306 70-100-10
oil seal BABSL 7 12-25-4.5 107 24-40-7 207 45-55-6 307 70-100-12
oil seal BABSL 8 12-28-7 108 24-40-8 208 45-55-7 308 70-110-12
oil seal BABSL 9 12-30-7 109 24-42-8 209 45-58-7 309 71-88-8
oil seal BABSL 10 12-32-7 110 25-33-4 210 45-60-7 310 72-90-10
oil seal BABSL 11 14-22-4 111 25-35-5 211 45-60-8 311 72-95-10
oil seal BABSL 12 14-24-7 112 25-35-6 212 45-60-10 312 72-105-13
oil seal BABSL 13 14-28-7 113 25-35-7 213 45-62-7 313 75-90-8
oil seal BABSL 14 14-30-7 114 25-37-5 214 45-62-8 314 75-90-10
oil seal BABSL 15 15-24-5 115 25-37-7 215 45-62-10 315 75-95-10
oil seal BABSL 16 15-24-7 116 25-38-7 216 45-65-8 316 75-95-12
oil seal BABSL 17 15-25-7 117 25-40-7 217 45-65-10 317 75-100-10
oil seal BABSL 18 15-26-7 118 25-40-8 218 45-68-10 318 75-100-12/13
oil seal BABSL 19 15-28-6 119 25-40-10 219 45-70-10 319 75-100-13
oil seal BABSL 20 15-30-7 120 25-42-7 220 45-72-8 320 75-105-12
oil seal BABSL 21 15-32-7 121 25-42-8 221 45-72-10 321 75-120-12
oil seal BABSL 22 15-35-7 122 25-42-10 222 45-75-8 322 80-100-10
oil seal BABSL 23 15-35-8 123 25-43-8 223 45-75-10 323 80-100-12
oil seal BABSL 24 15-40-10 124 25-43-9 224 45-80-7 324 80-100-13
oil seal BABSL 25 15-42-7 125 25-45-10 225 45-80-10 325 80-105-12
oil seal BABSL 26 16-22-4 126 25-47-7 226 48-62-8 326 80-110-10
oil seal BABSL 27 16-24-5 127 30-50-7 227 48-65-10 327 80-110-12
oil seal BABSL 28 16-28-7 128 30-50-8 228 48-68-10 328 80-120-13
oil seal BABSL 29 16-30-7 129 30-50-10 229 48-70-9 329 80-125-12
oil seal BABSL 30 16-32-7 130 30-52-7 230 48-72-10 330 82-105-12
oil seal BABSL 31 16-35-10 131 30-52-10 231 48-75-8 331 85-100-9
oil seal BABSL 32 17-28-7 132 30-55-10 232 48-80-10 332 85-105-12
oil seal BABSL 33 17-30-7 133 30-60-10 233 50-62-7 333 85-105-13
oil seal BABSL 34 17-32-7 134 30-62-7 234 50-65-8 334 85-110-12
oil seal BABSL 35 17-35-7 135 30-62-10 235 50-68-8 335 85-110-13
oil seal BABSL 36 17-40-7 136 31-52-7 236 50-68-10 336 85-120-12
oil seal BABSL 37 18-26-6 137 32-42-7 237 50-70-10 337 90-110-10
oil seal BABSL 38 18-28-7 138 32-45-7 238 50-72-8 338 90-110-12
oil seal BABSL 39 18-30-7 139 32-47-7 239 50-72-10 339 90-110-13
oil seal BABSL 40 18-32-7 140 32-47-8 240 50-72-12 340 90-115-13
oil seal BABSL 41 18-35-8 141 32-47-10 241 50-75-10 341 90-120-12
oil seal BABSL 42 19-30-7 142 32-48-7 242 50-80-8 342 90-120-13
oil seal BABSL 43 19-32-7 143 32-50-8 243 50-80-10 343 90-130-12
oil seal BABSL 44 19-35-10 144 32-52-7 244 50-85-10 344 90-140-13
oil seal BABSL 45 20-28-6 145 32-52-10 245 50-90-10 345 95-110-12
oil seal BABSL 46 20-30-5 146 34-52-8 246 52-68-8 346 95-120-12
oil seal BABSL 47 20-30-7 147 35-45-7 247 52-70-7 347 95-120-13
oil seal BABSL 48 20-31-7 148 35-47-6 248 52-72-8 348 95-125-12
oil seal BABSL 49 20-32-7 149 35-47-7 249 52-75-12 349 95-170-13
oil seal BABSL 50 20-35-5 150 35-48-7 250 52-80-10 350 100-115-9
oil seal BABSL 51 20-35-7 151 35-50-8 251 54-72-10 351 100-120-8
oil seal BABSL 52 20-35-10 152 35-50-10 252 55-70-8 352 100-120-10
oil seal BABSL 53 20-36-8 153 35-52-7 253 55-70-10 353 100-120-12
oil seal BABSL 54 20-37-8 154 35-52-8 254 55-72-8 354 100-120-13
oil seal BABSL 55 20-38-8 155 35-52-10 255 55-72-10 355 100-125-12
oil seal BABSL 56 20-40-6 156 35-55-8 256 55-75-8 356 100-125-13
oil seal BABSL 57 20-40-7 157 35-55-10 257 55-75-10 357 100-130-12
oil seal BABSL 58 20-40-10 158 35-56-10 258 55-75-12 358 100-130-13
oil seal BABSL 59 20-42-7 159 35-60-10 259 55-78-10 359 100-140-13
oil seal BABSL 60 20-45-7 160 35-62-7 260 55-80-8 360 105-130-12
oil seal BABSL 61 20-47-7 161 35-62-8 261 55-80-10 361 105-130-13
oil seal BABSL 62 20-47-10 162 35-62-10 262 55-85-10 362 105-140-12
oil seal BABSL 63 25-47-7 163 35-65-10 263 55-90-10 363 110-130-12
oil seal BABSL 64 25-47-10 164 35-72-7 264 58-72-8 364 110-140-12
oil seal BABSL 65 25-50-10 165 35-72-10 265 58-72-10 365 115-140-12
oil seal BABSL 66 25-52-7 166 35-80-10 266 58-80-10 366 115-150-12
oil seal BABSL 67 25-52-8 167 36-52-7 267 60-72-8 367 120-140-13
oil seal BABSL 68 25-52-10 168 36-52-10 268 60-75-8 368 120-150-12
oil seal BABSL 69 25-62-7 169 38-47-7 269 60-80-7/7.5 369 120-150-15
oil seal BABSL 70 25-62-10 170 38-50-7 270 60-80-8 370 120-160-12
oil seal BABSL 71 26-42-8 171 38-52-7 271 60-80-10 371 120-160-15
oil seal BABSL 72 26-47-7 172 38-52-10 272 60-80-12 372 125-150-12
oil seal BABSL 73 27-37-7 173 38-54-7 273 60-82-12 373 125-160-15
oil seal BABSL 74 27-41-10 174 38-55-7 274 60-85-8 374 130-150-12
oil seal BABSL 75 27-47-7 175 38-55-10 275 60-85-10 375 130-150-15
oil seal BABSL 76 28-38-7 176 38-56-10 276 60-90-8 376 130-160-12
oil seal BABSL 77 28-40-7 177 38-62-7 277 60-90-10 377 130-160-13
oil seal BABSL 78 28-42-7 178 38-62-10 278 60-95-10 378 130-160-15
oil seal BABSL 79 28-42-10 179 38-72-10 279 62-80-12 379 130-170-12
oil seal BABSL 80 28-45-8 180 40-50-5 280 62-85-10 380 135-160-12
oil seal BABSL 81 28-47-7 181 40-52-7 281 62-85-12 381 135-160-15
oil seal BABSL 82 28-47-10 182 40-52-10 282 62-90-10 382 135-170-12
oil seal BABSL 83 28-52-7 183 40-55-7 283 62-90-13    
oil seal BABSL 84 28-52-10 184 40-55-8 284 63-90-10    
oil seal BABSL 85 30-40-4 185 40-55-10 285 64-80-8    
oil seal BABSL 86 30-40-7 186 40-56-7 286 65-75-8    
oil seal BABSL 87 30-42-6 187 40-56-8 287 65-80-8    
oil seal BABSL 88 30-42-7 188 40-56-10 288 65-80-10    
oil seal BABSL 89 30-43-8 189 40-58-8 289 65-80-12    
oil seal BABSL 90 30-45-5 190 40-58-10 290 65-85-10    
oil seal BABSL 91 30-45-8 191 40-60-10 291 65-85-12    
oil seal BABSL 92 30-47-7 192 40-62-7 292 65-90-10    
oil seal BABSL 93 30-47-10 193 40-62-10 293 65-95-10    
oil seal BABSL 94 30-48-8 194 40-65-10 294 65-100-10    
oil seal BABSL 95 22-32-5.5 195 40-68-10 295 65-100-12    
oil seal BABSL 96 22-32-7 196 40-70-10 296 68-85-10    
oil seal BABSL 97 22-35-7 197 40-72-7 297 68-90-10    
oil seal BABSL 98 22-35-10 198 40-72-10 298 68-100-10    
oil seal BABSL 99 22-40-7 199 40-80-10 299 70-82-7    
oil seal BABSL 100 22-40-8 200 40-90-12 300 70-85-8    

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