mp546e.pdf

SKF TMDS 9Mounting Star Instructions for use Table of contents Page Safety recommendations . . . . . . . . . . . . . . . . . . . . . 4 1. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3. Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4. Bearings and Accessories . . . . . . . . . . . . . . . . . . . 7 5. (Dis)Mounting procedures for shaft no. 1 . . 5.1 Mounting bearing 6208 on shaft 1 . . . . . 5.2 Dismounting of bearing 6208 on shaft 1 (1) 5.3 Dismounting of bearing 6208 on shaft 1 (2) 7 7 8 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6. (Dis)Mounting procedures for shaft no.2 . . . 6.1 Mounting bearing 7308 BECBP on shaft 2 . . 6.2 Dismounting bearing 7308 BECBP on shaft 2 6.3 Mounting ball bearing 6308 on shaft 2 . . . . 6.4 Dismounting ball bearing 6308 on shaft 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 9 9 10 . 10 7. (Dis)Mounting procedures for shaft no. 3 . . . . . . . . . . . 11 7.1 Mounting bearing 21312 E/C3 on shaft 3 . . . . . . . . . . 11 7.2 Dismounting bearing 21312 E/C3 on shaft 3 . . . . . . . . . 11 8. (Dis)Mounting procedures for shaft no. 4 . . . . . . . . . . . 12 8.1 Mounting bearing 21312 EK/C3 on shaft 4 . . . . . . . . . 12 8.2 Dismounting bearing 21312 EK/C3 on shaft 4 . . . . . . . . 13 9. (Dis)Mounting procedures for shaft no. 5 . . . . . . . . . . . 14 9.1 Mounting bearing 21312 EK/C3 on shaft 5 . . . . . . . . . 14 9.2 Dismounting bearing 21312 EK/C3 on shaft 5 . . . . . . . . 14 2 SKF TMDS 9 . . . . . 15 10.4 Dismounting ball bearing 6212 on shaft 8 . 9 . . . . . .1 Mounting bearing NU 2212 ECP on shaft 9 . 8 . . . 16 12. 12. . . . . . . 17 . . . . . . (Dis)Mounting procedures for shaft no. . .2 Dismounting self-aligning ball bearing 1209 EKTN9/C3 on shaft 7 . . . . . . . (Dis)Mounting procedures for shaft no. . 15 10. . . . . . . 18 . . . . . . . .2 Dismounting ball bearing 6214 on shaft 8 12. . . . .1 Mounting self-aligning ball bearing 1209 EKTN9/C3 on shaft 7 . . . . 18 13. . 16 11. . . (Dis)Mounting procedures for shaft no. . . . . . 7 . . . . . . . . . .2 Dismounting bearing NU 2212 ECP on shaft 9 . (Dis)Mounting procedures for shaft no. 19 SKF TMDS 9 3 . . 16 11. 17 . . . . . . . 18 . .1 Mounting ball bearing 6214 on shaft 8 . . . . . . .3 Mounting ball bearing 6212 on shaft 8 . . . . . . 19 13. . . . . . . .1 Mounting bearing 21312 EK/C3 on shaft 6 . . 6 . . . . . . . . . 12. 12. . . . . . . . . . .10. .2 Dismounting bearing 21312 EK/C3 on shaft 6 . . . . . . . . . . . 15 11. 19 13. . . 4 SKF TMDS 9 .Safety recommendations – Never dismount a bearing from a tapered seating by means of the Oil Injection Method without having an hydraulic nut or an SKF locking nut screwed onto the shaft end. Description For a bearing to function properly and to last.Mounting and dismounting self-aligning ball bearing 1209 EKTN9/C3 on a shaft in housing SNL 509 TG. 7 . SKF has developed methods that simplify mounting and dismounting of bearings and also eliminate almost completely the risks of damaging these precise machine elements. This demonstration unit can be used for presentation of various methods including the SKF Oil Injection Method.Mounting and dismounting spherical roller bearing 21312 E/C3 with cylindrical bore on shaft. 8 . Mounting should. Shaft No.Mounting and dismounting angular contact ball bearing 7308 BECBP on shaft. 1 . The demonstration unit is used to show the following: Shaft No. 2 . be carried out in a clean and dust-free room and not in the immediate vicinity of dust producing machines. 5 . which is fitted on both shaft and housing.1. Shaft No.Mounting and dismounting cylindrical roller bearing NU 2212 ECP with cylindrical bore on cylindrical shaft. 9 . Shaft No. .Mounting and dismounting ball bearing 6214 on shaft. 4 .Mounting and dismounting ball bearing 6208. Shaft No. 6 . Shaft No.Mounting and dismounting spherical roller bearing 21312 EK/C3 with adapter sleeve on shaft. dismounting must be conducted with the appropriate care. Shaft No.Mounting and dismounting ball bearing 6308 on shaft. 3 . . SKF TMDS 9 5 . it is important that the correct mounting method and the suitable tools are being used. Care should also be exercised with regard to cleanliness.Mounting and dismounting ball bearing 6208. which is fitted in housing only. . The use of the SKF Oil Injection Method saves considerable effort and avoids unnecessary damages to the parts.Mounting and dismounting spherical roller bearing 21312 EK/C3 with withdrawal sleeve on shaft. If the bearing is to be re-used. Shaft No.Mounting and dismounting spherical roller bearing 21312 EK/C3 with tapered bore on shaft.Mounting and dismounting ball bearing 6212 0n shaft. Shaft No. whenever possible. 8 Shaft no. Tools Designation TMDS 9-11 TMDS 9-12 TMDS 9-13 TMDS 9-14 TMDS 9-15 TMDS 9-16 TMDS 9-17 TMDS 9-18 TMDS 9-19 TMDS 9-20 TMDS 9-21 TMDS 9-22 TMDS 9-23 TMDS 9-24 TMDS 9-25 TMDS 9-26 TMDS 9-27 TMDS 6-28 TMDS 9-29 Qty 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Description Designation Qty 20) 21) 22) 23) 24) 25) 26) 27) 28) 29) 30) 31) 32) 33) 34) 35) 36) 37) 38) 39) Hydraulic Handpump Hydraulic Nut Electronic Induction Heater Electronic Thermometer Mechanical Fitting Tool Bearing Puller Set Bearing Puller Locknut Spanner Aluminium Heating Ring Feeler Gauge Hook Spanner Quick Connections Nipple Mounting Fluid Dismounting Fluid Split Collet Puller Set Dial Indicator Lock Nut Socket Hook Spanner Hook Spanner High Pressure Pipe 729124 SRB HMV 12E TMBH 1 TMDT 2 TMFT 33 TMMD 61 TMMA 3 TMHN 7 TMBR NU2212EC 729865 A HN 13 729100 LHMF 300/5 LHDF 900/5 TMSC 30-60 TMCD 5P TMFS 10 HN 12 HN 8 1 1 1 1 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 40) 41) Nipple Strong Back Puller 6 721740 A/300 227963 TMBS 50 1 1 SKF TMDS 9 . 4 Shaft no. 1 Shaft no. 9 Intermediate ring 1 Intermediate ring 2 Disc Distance ring 1 Distance ring 2 Support ring Stool SNL 509 TG Dismounting adapter Turning Table (Shaft 2) (Shaft 2) (Shaft 2) (Shaft 5) (Shaft 6) (Shaft 5 + 6) (Shaft 7) (Shaft 7) (Shaft 7) 2072609 3.2. 2 Shaft no. 6 Shaft no. Components 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14) 15) 16) 17) 18) 19) Component Shaft no. 5 Shaft no. 3 Shaft no. 7 Shaft no. Shafts. SKF TMDS 9 7 . 5. Place the bearing to its seating and drive up using Fitting Tool TMFT 33. 1 Make sure that the bearing bore. Accessories and Tools (1 to 41). Shafts and Accessories (1 to 19). Bearings and Accessories Note: Bearing Qty Accessory Qty 21312 EK/C3 21312 E/C3 6208 6212 6214 1209 EKTN9/C3 6308 7308 BECBP NU 2212 ECP 3 1 1 1 1 1 1 2 1 H 312 AHX 312 KM 12 MB 12 KM 10 MB 10 H 209 ASNH 509 MB 8 KM 8 KM 13 1 1 2 2 1 1 1 1 1 1 1 Demonstration Unit TMDS 9 includes Turning Table.4. Demonstration Unit TMDS 9/1 includes Turning Table.1 Mounting bearing 6208 on shaft no. Apply a thin layer of oil. as well as the shaft and housing seating are clean. (Dis)Mounting procedures for shaft no.1 5. Select the correct combination of sleeve and impact ring from Fitting Tool TMFT 33. according to the selection chart. 5. 8 SKF TMDS 9 . 1 (1) Select the correct combination of puller arms and withdrawal screw from ball bearing puller TMMD 61.2 Dismounting of bearing 6208 on shaft no. extract by throwing the hammer towards the handle.3 Dismounting of bearing 6208 on shaft no. Tighten the collet nut to expand the extractor behind bearing. 1.1 but without the center part of shaft no. 1 (2) Mount bearing 6208 as in procedure 5. place the withdrawal screw in position and dismount the bearing.5. Insert the arms between the bearing rings. Connect the slide hammer. Select extractor TMSC 30-60 and insert this through bore of bearing. according to the instruction for the tool. one by one. in back-to-back arrangement onto the shaft without misalignment. Bearings should be heated about 80 to 90°C above the temperature of the shaft. but should never exceed 125°C. To handle the hot bearings.6. 2 Mounting bearings with cylindrical bore can best be done by heating them.1 Mounting bearings 7308 BECBP on shaft no. use clean gloves (TMBA G11) or clean lint-free cloth. 2 6. 6. push them.2 Dismounting bearings 7308 BECBP on shaft no. Dismount both bearings by means of the puller. (Dis)Mounting procedures for shaft no. When both bearings has reached the desired temperature. Press the bearing inner rings against the abutment face of the disc until an interference fit is obtained. 2 Place bearing puller TMMA 3 around the disc behind both angular contact ball bearings 7308 BECBP and release the spring of the puller. Heat both angular contact ball bearings on the Induction Heater TMBH 1. SKF TMDS 9 9 . 4 Dismounting ball bearing 6308 on shaft no. When the bearing has reached the desired temperature.3 Mounting ball bearing 6308 on shaft no.1. 2 Place bearing puller TMBS 50 behind ball bearing 6308 according to the instruction of the tool and dismount the bearing. 6. push it onto the shaft without misalignment. 10 SKF TMDS 9 . 2 6. Press the bearing inner ring against the abutment face of the longer intermediate ring until an interference fit is obtained. 2 Heat ball bearing 6308 with Induction Heater TMBH 1. as described in point 6. (Dis)Mounting procedures for shaft no.6. 3 Heat spherical roller bearing 21312 E/C3 with Induction Heater TMBH 1.2 Dismounting bearing 21312 E/C3 on shaft no.1 Mounting bearing 21312 E/C3 on shaft no. While pumping. (Dis)Mounting procedures for shaft no. 3 7.7. When the bearing has reached the desired temperature. SKF TMDS 9 11 . Connect the quick connection nipple to the adapter and connect pump 729124 SRB to quick connection nipple and pump oil between bearing and bearing seat until oil escapes at the end of the contact surface all around the shaft.1. dismount the bearing by means of the puller. 7. as described in point 6. push it onto the shaft against the abutment face until an interference fit is obtained. 3 Place bearing puller TMMA 3 around spherical roller bearing 21312 E/C3 and release the spring of the puller and tighten the puller by hand. Connect high pressure pipe with adapter on the shaft. having pump 729124 SRB (with open release valve) still connected. This is monitored by the SKF Dial Indicator TMCD 5P. The oil will flow back into the pump. Rotate the outer ring a few times to allow the rollers to assume their correct positions.8. Determine whether one or two surfaces slide during mounting. Drive the bearing up to the starting position by applying the HMV 12E-nut pressure found in the table. Remove the hydraulic nut after mounting and screw the shaft nut KM 12 to locking washer MB 12. Return the piston of the hydraulic nut in a vice.g.1 Mounting bearing 21312 EK/C3 on shaft no. Lightly oil all mating surfaces with a thin oil e. which can be put into the hole of the HMV E-nut. The easiest and best way of mounting spherical roller and CARB bearings is with the help of the SKF Drive-up Method. (Dis)Mounting procedures for shaft no. Monitor the pressure by the gauge on the SKF Hydraulic Pump 729124 SRB. Carefully read the step by step mounting procedure of MP512 (Accurate axial drive-up of spherical roller bearings). 4 During drive up the original radial clearance of the bearing is reduced. 12 SKF TMDS 9 .4 8. Drive the bearing up the taper to the required distance from the axial drive-up starting position. SKF LHMF 300 and carefully put the bearing on the shaft. 2 Dismounting bearing 21312 EK/C3 on shaft no. Tighten the release valve of the pump again and build up a new oil film between bearing inner ring and shaft.8. an oil film will appear between bearing inner ring and shaft. NOTE: Never dismount a bearing from a tapered seating by means of the Oil Injection Method without having an hydraulic nut or an SKF locking nut screwed onto the shaft end. Release the oil pressure by turning the release valve at the pump. The bearing will simply be shot off from its seating with force and without damaging the seat. Rescrew the shaft nut so far that a gap of about two coarses of the thread is left between the bearing and the nut. SKF TMDS 9 13 . 4 Connect pump 729124 SRB via quick connection nipple 729100 to the shaft end. Use hook spanner HN 12 to loosen and remove shaft nut KM 12 and locking washer MB 12. By pumping oil into the oil duct and distribution groove. and the bearing will slide from its seat. as described in point 8. adapter sleeve and shaft depends on how far the bearing is pressed onto the tapered seat. (Dis)Mounting procedures for shaft no. 9.1 Mounting bearing 21312 EK/C3 on shaft no. Press the piston of the hydraulic nut back. 14 SKF TMDS 9 . so that the piston is directed away form the bearing. as described in point 8. 5 Remove the sleeve’s nut with hook spanner HN 12 and take away the locking washer. Push the distance ring and the adapter sleeve onto the shaft. Then push the spherical roller bearing onto the adapter sleeve until the abutment face of the distance ring is reached.1.1. Place the locking washer and screw on the sleeve’s nut.1.9. Screw hydraulic nut with piston facing the bearing onto the adapter sleeve. Press the piston of the hydraulic nut back. Screw the support nut on the shaft until it is in contact with the hydraulic nut piston. 5 The tightness of the fit between bearing.2 Dismounting bearing 21312 EK/C3 on shaft no. For mounting the spherical roller bearing 21312 follow the instructions described in point 8. Then screw the hydraulic nut onto the adapter sleeve. This gap is required to move the adapter sleeve so far that the bearing gets detached from the adapter sleeve. Screw the hydraulic nut only so far that a gap of about two courses of the thread is left between the bearing and the nut. Pump oil into the hydraulic nut with pump 729124 SRB. 5 9. 6 Unscrew the KM 10 Lock nut and take away the locking ring MB 10 from the shaft. Place the bearing upright and rotate the inner ring a few times to allow the rollers to assume their correct positions.2 Dismounting bearing 21312 EK/C3 on shaft no. check again the clearance of the bearing. Therefore. Screw on lock nut KM 10 by the Lock Nut Socket TMFS 10 until the bearing is pressed far enough on the withdrawal sleeve. between the outer ring and the uppermost rollers. SKF TMDS 9 15 . 6 10. withdrawal sleeve and shaft depends on how far the bearing is pressed onto the tapered seat. using the feeler gauge 729865 A. Use as much force as needed to dismount spherical roller bearing 21312 EK/C3. 10. the spherical roller bearing is pushed manually on the shaft until the abutment face of the distance ring is reached. Remount shaft locknut KM 10 to locking washer MB 10. Finally. The clearance is measured. 6 The tightness of the fit between bearing. Screw Lock Nut KM 13 on the withdrawal sleeve using the HN 13 spanner. This is the case when the required reduction is obtained. After determination of the radial clearance (values of General Catalogue). (Dis)Mounting procedures for shaft no.10. Push the withdrawal sleeve under the bearing as far as possible. it is necessary to measure the radial clearance of the unmounted spherical roller bearing.1 Mounting bearing 21312 EK/C3 on shaft no. the clearance is now measured between the lowest rollers and the outer ring. Since the bearing is positioned on the shaft. Tighten the nut according to the instructions of the TMHN 7. Hand tighten the assembly with locknut KM 9. 11.11. so that the bearing will slide from the sleeve. 16 SKF TMDS 9 . 7 Take the shaft out of the holder. 7 11. Place self-aligning ball bearing 1209 EKTN9/C3 and locking washer MB 9 over the adapter sleeve.2 Dismounting self-aligning ball bearing 1209 EKTN9/C3 on shaft no. The bearing assembly is loose now and can be taken away. (Dis)Mounting procedures for shaft no.1 Mounting self-aligning ball bearing 1209 EKTN9/C3 on shaft no. Place adapter sleeve H 209 over the shaft. Gently hammer against the dismounting adapter which is placed against the bearing inner ring. 7 Unlock locknut KM 9 a few turns. Place the shaft and bearing assembly in its holder so that the bearing assembly fits in its housing. which will be dismounted without Oil Injection Method. 8 Mounting bearings with cylindrical bore can best be done by heating them. but should never exceed 125°C. Press the bearing inner ring against the abutment face until an interference fit is obtained. 8 Shaft no. which will be dismounted with Oil Injection Method. Bearings should be heated about 80 to 90°C above the temperature of the shaft.12. 8 will show the big differences in dismounting forces between ball bearing 6212. 12. When the bearing has reached the desired temperature. push it onto the shaft seat without misalignment. and ball bearing 6214. Heat ball bearing 6214 on the Induction Heater TMBH 1.1 Mounting ball bearing 6214 on shaft no. SKF TMDS 9 17 . To handle the hot bearings use clean gloves (TMBA G11) or clean lint-free cloth. (Dis)Mounting procedures for shaft no. While pumping. 18 SKF TMDS 9 . Mounting ball bearing 6212 on shaft no. 12. Connect the quick connection nipple to the adapter and connect pump 729124 SRB to quick connection nipple and pump oil between bearing and bearing seat until oil escapes at the end of the contact surface all around the shaft. Connect high pressure pipe with adapter on the shaft. Dismounting ball bearing 6212 on shaft no.8 Ball bearing 6212 should be mounted the same way as ball bearing 6214 (see point 12.12.3.4.1). 8 Place bearing puller TMMA 3 around ball bearing 6214 and release the spring of the puller. dismount the bearing by means of the puller.2 Dismounting ball bearing 6214 on shaft no. place bearing puller TMMA 3 around ball bearing 6212 and pull the bearing off. 8 After shaft and bearings are cooled down. 12. When the ring has reached the desired temperature press it against the abutment face of the shaft until an interference fit is obtained. Carefully open the handles and take away the bearing inner ring. 9 13. SKF TMDS 9 19 . Heat aluminium ring TMBR NU2212EC to temperature of approx. Coat the inner raceway with an oxidation resistant oil. 280°C by means of a hot plate or an open fire. (Dis)Mounting procedures for shaft no. Wait for a short time. then try to rotate the tool with ring until it comes loose from the shaft. 13.2 Dismounting bearing NU 2212 ECP on shaft no.13. as described in point 12. 9 Take away cage and roller assembly.1. then pull it off. (An ordinary kitchen hot plat can do this job). Place the aluminium ring round the bearing inner ring and press the handles together. 9 Slide away inner ring from bearing NU 2212 ECP and heat it with Induction Heater TMBH 1.1 Mounting bearing NU 2212 ECP on shaft no. which can stand heating. © Copyright SKF 2002/04 www.In line with our policy of continuous development of our products we reserve the right to alter any part of the above specification without prior notice.mapro.skf.com/mount MP546E SKF Maintenance Products .com www.skf.