Non-Contact Seals

www.gmn.deTolerance tableIndexHousingExtract of DIN ISO 286-2TolerancesBore diameter (OD) Nominal size [mm];above 10 18 30 50 80 120 180to 18 30 50 80 120 180 250Tolerances [µm]K7M7N7H7G7+6 +6 +7 +9 +10 +12 +13-12 -15 -18 -21 -25 -28 -330 0 0 0 0 0 0-18 -21 -25 -30 -35 -40 -46-5 -7 -8 -9 -10 -12 -14-23 -28 -33 -39 -45 -52 -60+18 +21 +25 +30 +35 +40 +460 0 0 0 0 0 0+24 +28 +34 +40 +47 +54 +61+6 +7 +9 +10 +12 +14 +15Shaft Extract of DIN ISO 286-2Shaft diameter (d) Nominal size [mm];above 10 18 30 50 80 120 180to 18 30 50 80 120 180 250Tolerances [µm]h6j6k6g6f60 0 0 0 0 0 0-11 -13 -16 -19 -22 -25 -29+8 +9 +11 +12 +13 +14 +16-3 -4 -5 -7 -9 -11 -13+12 +15 +18 +21 +25 +28 +33+1 +2 +2 +2 +3 +3 +4-6 -7 -9 -10 -12 -14 -15-17 -20 -25 -29 -34 -39 -44-16 -20 -25 -30 -36 -43 -50-34 -41 -50 -60 -71 -83 -96Abrasive contamination 10Advantages, ecological 10Advantages, economical 10Aluminium outer ring 19Applications 10,11Axial clearance, increased 15,28Axial clearance, Metal Seal 15Axial clearance, Plastic Seal 21Back transport (function) 8Back transport (product caracteristics) 15,21Basics 8Bearing sizes 30Benefits 10Calibration 19Capillary force 26Centrifugal force 9Characteristics, Labyrinth Metal Seal 15Characteristics, Labyrinth Plastic Seal 21Characteristics, sealing system(selection sealing system) 12Chemical Industry (application) 11Chemicals (selection sealing system) 12Chemicals, resistance against(product characteristics) 21Classification 6Cleanliness high (application) 10,11Comparison to contact seal 7Components around (funtion) 8Conical gap 9,21Contact Seal (comparison) 7Contamination (comparison) 7Design of Metal Seal 14Design of Plastic Seal 20Disc 26Drain groove Metal Seal 14,15,29Drain groove Plastic Seal 20,21,29Drain grooves 29Drain holes 26,29Drainage (installation) 28Draining (function) 8Dust (selection sealing system) 12Dusty contamination (application) 10Dynamic sealing systems 6Dynamic systems (applications) 11Electronic Industry (application) 11Encoder (application) 11Energy efficiency (selection sealing system) 12Face mounting 27Fibers (application) 11Food Industry (application) 11,12Free of dust (product caracteristic) 21Frictionless 15,21Function 9Functional benefits 10Functions of seal components 8Gap design 9Gap hight 9Grease, filled with (application) 10Greased seals 21High temperature applications 12Horizontal gap 9,15Horizontal installation position 26Installation (general) 26Installation inside the unit 27Installation situations, specific 28Labyrinth 9Labyrinth design 9Labyrinth Plastic Seal, greased 21Labyrinth Seal Type DS 24Labyrinth Seal Type S 20,21Labyrinth Seal Type SA 20,21Life time (selection Sealing system) 12Life time increased (application) 10Life time limit (comparison) 7Lifting-off speed 13Limits of use (seal) 13Linear extension (installation) 28Liquid level 13,29Liquid level (selection sealing system) 12Liquid splashing (selection sealing system) 12Lubrication of the seal (comparison) 7Machine standstill (function) 8Machine tool industry (applications) 11Machining spindles (application) 11Maintenance (selection sealing system) 12Maintenance, low costs (application) 10Mating parts 8,26Mating parts, hardening and grinding(comparison) 7Mating parts, Metal Seal 19Mating parts, Plastic Seal 25Mating parts, requirements to(selection sealing system) 12Mounting tolerances Metal Seal 19Mounting tolerances Plastic Seal 25Non-Contact Labyrinth Seal (comparison) 7Non-corrosive (product caracteristics) 21Oil shield 29Orientation of Plastic Seals (installation) 26,28O-ring 24Outer ring (alu) 19Paper Industry (application) 10Polyoxymethylene (POM) 21Positioning contactless and powerless(application) 11Power loss (comparison) 7Powerless positioning (application) 11Press fit 13Press fit (installation) 27Press fit Metal 19Press fit Plastic 25Pressure, difference of (selection sealing system) 12,13Product range Metal Seals 16,17Product range Plastic Seals 22,23Product range, overview 30,31Protection against splashing liquids 29Protective seal (application) 11Quality management 34Radial clearance Metal Seal 15Radial shaft seal (selection sealing system) 12Protecting (function) 8Ring groove 29Rotating housing 14,20Rotating shaft 14,20Rotation speed (selection sealing system) 12Rotation speed, high (application) 10Sealing air 29Sealing effect 9Sealing efficiency 29Sealing gap, conical 9,21Sealing gap, horizontal 9,15Sealing system characterisitcs(selection sealing system) 12Selection assistant of sealing system 12Shaft extension (installation) 28Shaft extension with temperature (installation) 28Shaft rotation (function) 8Shaft shoulder (installation) 26Shielding (function) 8Sizes (product range) 30,31Special material 18Specials Metal Seals 18Specials Plastic Seals 24Speed limit 13Speed limit (comparison) 7Spindle bearing pre-assembled (installation) 28Spindle head (application) 11Stainless steel 18Standard installation 26Static seals 6Switching (function) 8Tandem arrangement Metal Seal 28Tandem arrangement Plastic Seal 28Technical adavantages 10Technical data, Metal Seal 15Technical data, Plastic Seal 21Technical data, Metal material 15Technical data, Plastic material 21Temperature range (comparison) 7Temperature range, Metal Seal 15Temperature range, Plastic Seal 21Temperature, increasing (comparison) 7,15,21Textile industry (application) 10Thermal advantages 10Thermal effects (selection assistance) 12Thin design, metal 18Thin design, plastic 24Throttling (function) 8Tolerance table 33Tolerances, Metal Seal 19Tolerances, Plastic Seal 25Type DL 18Type DS 24Type L 14Type M 14Type S, SA 20,21Vertical installation 26,27,28Viscosity 29Water (selection sealing system) 12Wear (comparison) 7Wearless (product characteristic) 15,21Width, Metal Seal 15Width, Plastic Seal 2132 33