Summary of Contents for SNR NTN SNOE 200 Series
- Page 1 Assembly, servicing and maintenance instructions SNOE 200 SNR bearing housings N° TS5142 www.ntn-snr.com With You...
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Page 2: Table Of Contents
Contents 1. Types of housing with oil-lubricated pillow block 2. Preparation for assembly 3. Mounting the shaft 4. Finalising 5. Disassembly 6. Commissioning 7. Lubrication 8. Servicing p. 11 9. Screws and bolts p.12 10. Screws, threads and measurements p.13 11. -
Page 3: Types Of Housing With Oil-Lubricated Pillow Block
Assembly, servicing and maintenance instructions 1. Types of housing with oil-lubricated pillow block Single locking Dual opening 1. Upper part of housing 15. Oil level indicator 2. Outer side cover 16. Lower part of bearing (in several parts) hou-sing 3. Ventilation filter 17. -
Page 4: Preparation For Assembly
Heat the inner labyrinth seal (11) (the longer one) to approximately 90°C, using, for exam-ple, an SNR Fast Therm 20, Fast Therm 35 or Fast Therm 150 induction heater and thread it on to the shaft, applying pressure to the collet during the whole of its cooling time. -
Page 5: Finalising
Assembly, servicing and maintenance instructions d) Using the same procedure, fit the fixed bearing on to the shaft (max. temperature 120°C). Pay attention to the fitting orientation ( the markings must be pointing towards the end of the shaft). Finally, also fit the stop plate (5) and slotted round nut (6) to lock the bearing (7) in the axial direction. - Page 6 e) Apply Marston sealing paste or similar to both sides of the cover seals (4) and first screw the inner cover (17) into its locating points. IMPORTANT Allow evaporation time (manufacturer’s data sheet, page 14) Tighten the cover screws as per the method and the following diagram: Level 1: 10% torque Level 2: 50% torque Level 3: 100% torque...
- Page 7 Assembly, servicing and maintenance instructions k) Fix the oil level indicator supplied with the housing (15) at one of the four connection points. Secure the oil level indicator thread in its housing with Loctite 222 thread locking compound or similar. Each time the assembly is taken apart, a new copper sealing ring should be fitted between the cage surfaces and the oil level indicator fixing points.
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Page 8: Disassembly
5. Disassembly a) Drain the assembly, for this you can use the fixing bolts (19). b) Undo the bolts and screws (13 and 14). c) Remove the upper part of the housing (1) and the covers (2 and 17). IMPORTANT Since flat seals (4) can disintegrate when removing the covers, it is recommended that they are changed. -
Page 9: Lubrication
Assembly, servicing and maintenance instructions 7. Lubrication The quantities of oil given in this table are for indication purposes only. The essential criterion is the level of oil during service. Oil level in service [mm] Approx. oil Housing reference H min. H max. - Page 10 Diagram 1 Viscosity 1 Diagram 2 Viscosity [mm Temperature/viscosity for mineral oils Operating temperature t [°C] Operating viscosity...
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Page 11: Servicing
Assembly, servicing and maintenance instructions 8. Servicing At regular intervals, it should be checked that the bearing units are operating normally and at the right temperature. Unusual noises or temperatures are signs of a malfunction.. If possible, the cause should be determined immediately. An unbalanced load or insufficient greasing could, for example, alter the usual noise during operation. -
Page 12: Screws And Bolts
9. Screws and bolts Recommended tightening torques Guide pin Fixing bolts Labyrinth seal Recommended Cover screw pillow block bolts (with nut lock com- Upper/lower parts pound) Standard ISO 4014 ISO 4017 DIN 916 ISO 4014 Property class (n° 13) (n° 14) (n°... -
Page 13: Screws, Threads And Measurements
Assembly, servicing and maintenance instructions 10.Screws, threads and measurements For any further information you may require, please contact us at the following address: SNR WÄLZLAGER GMBH - INDUSTRY ENGINEERING DIVISION BIELEFELD - Postfach 17 01 45 33701 Bielefeld Tél.: 05 21 924 00 0... -
Page 14: Appendix
11. Appendix Data sheet MARSTON Colour: Density (at 25°C): 1.1 g/cm³ Base material 63 to 67% polyurethane Solvent: mixture of acetone and ethyl acetate 33 to 37% Minimum thermal resistance: -50°C Maximum thermal resistance: +270°C Max. filling capacity: approx. 0.2 mm State when delivered liquid Behaviour in respect of corrosion... - Page 16 I N D U S T R Y NTN-SNR ROULEMENTS – www.ntn-snr.com - 1 rue des Usines – 74000 Annecy – France – Tel. +33 (0)4 50 65 30 00 S.A. au capital de 11 359 542 € - RCS ANNECY B 325 821 072 – Id. Fiscale : FR 48 325 821 072 – SIRET 325 821 072 00015 – Codes APE 2815 Z – Code NACE...
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