FAG Hydraulic nuts. Technical Product Information

Transcription

1 FAG Hydraulic nuts Technical Product Information

2 Contents Application 2 Design 2 Design variants 3 Pressure generators, connectors 4 Dimension tables for FAG hydraulic nuts (metric) 6 Dimension tables for FAG hydraulic nuts inch thread 12 Dimension tables for FAG hydraulic nuts reinforced design 14 Securing against rotation 16 Mounting of rolling bearings using hydraulic nuts 17 Reduction in radial internal clearance of FAG spherical roller bearings with tapered bore 19 Reduction in radial internal clearance of FAG cylindrical roller bearings with tapered bore 20 Drive-up gauge for hydraulic nuts 21 Mounting Manager as an aid in mounting of bearings 22 General mounting aid for the hydraulic method 23 The designation system of the INA and FAG brands has been harmonised. This catalogue contains, for the first time, the new ordering designations, which are currently only valid for Europe. Customers outside Europe are requested to continue using the old ordering designations (please see the comparison on page 24).

3 Application Design Application FAG hydraulic nuts HYDNUT are used to drive up parts with a tapered bore onto their tapered seats. Presses are mainly used if the drive-up forces required cannot be applied using other devices, e.g. shaft nuts or pressure screws. They are mainly used for: mounting of rolling bearings with a tapered bore. The rolling bearings can be seated directly on a tapered shaft, on an adapter sleeve or an extraction sleeve. If the bearing is located using an extraction sleeve or an adapter sleeve, the hydraulic nut can also be used for dismounting. mounting of couplings, gears, impellers, ships propellers etc. Design FAG hydraulic nuts comprise a press ring and an annular piston, Figure 1. The piston is hydraulically operated. The pressure chamber is sealed by two soft PVC sealing cords mounted on rings. Hydraulic nuts are designed for a maximum oil pressure of 800 bar. The stroke is designed such that the rolling bearings or other components with a tapered bore can be mounted in a single operation. The bore d 2 of the press ring is available with a metric fine thread, a trapezoidal thread or an inch thread. A suitable FAG hydraulic nut is thus available for all common sleeve and shaft threads. For higher drive-up forces, FAG also supplies hydraulic nuts with a smooth bore (the reinforced design). FAG hydraulic nuts have oil connectors with a G. thread. In designs with a thread, there are two connectors on the end face and one on the circumferential face. The second connector on the end face allows the use of a dial gauge (page 21). In the reinforced design, both connectors are on the circumferential face. Hydraulic nuts with a thread have holes to make handling easier. As the size increases, so does the number of these holes, as per the table in Figure 2. Larger hydraulic nuts also have threaded holes for eye bolts to allow easier transport. 30 Handling holes Oil connector G 1 / 4 d 2 Oil connector G 1 / 4 2 1: FAG hydraulic nut (threaded design)

4 Design Design variants 2: Holes in the press ring for easier handling of hydraulic nuts Thread Handling holes d 2 Quantity Diameter End face Circumferential face mm inch mm , , , , , , , Design variants FAG hydraulic nuts are available in different variants: with a metric fine pitch thread and trapezoidal thread This design fits all standardised adapter and extraction sleeves with metric dimensions. Ordering designations: HYDNUT50 to HYDNUT200 (metric fine pitch thread to DIN 13) and HYDNUT205 to HYDNUT1180 (trapezoidal thread to DIN 103) with an inch thread These hydraulic nuts comply with ABMA Standards for Bearing Mounting Accessories, Section 8, Locknuts Series N-00. Ordering designations: HYDNUT90-INCH to HYDNUT530-INCH. of reinforced design These hydraulic nuts have a smooth bore machined to H7. They were primarily developed for shipbuilding, where higher mounting forces are required and hydraulic nuts are generally mounted on a nut with a centring spigot. Ordering designations: HYDNUT100-HEAVY to HYDNUT900-HEAVY Special design variants are available by agreement only. Replacement seals Seals are subject to wear. We supply replacement seals for all hydraulic nuts (1 set is supplied with the original delivery of each HYDNUT). Ordering examples: HYDNUT160.SEAL (for HYDNUT160 or HYDNUT160-INCH) HYDNUT600-HEAVY.SEAL (for HYDNUT600-HEAVY) Drive-up gauge for hydraulic nuts: see page 21. 3

5 Pressure generators Connectors Pressure generators, connectors Hydraulic nuts are operated by oil pressure. We supply a comprehensive, matched range of accessories including pressure generators and connectors. The FAG pressure generator required to operate the hydraulic nuts is shown in the scheme in Figure 3. FAG hand pump sets should preferably be used due to their ease of handling, large oil volume and suitability for universal use. 3: Allocation of FAG pressure generators to FAG hydraulic nuts Pressure generator required Hydraulic nut Hydraulic nut Hydraulic nut (see also TPI WL 80-50) (standard) in reinforced with inch thread design PUMP1000-0,7L (-DIGI) PUMP1000-4L (-DIGI) HYDNUT50 HYDNUT100-HEAVY HYDNUT90-INCH HYDNUT395 HYDNUT300-HEAVY HYDNUT380-INCH HYDNUT400 HYDNUT325-HEAVY HYDNUT400-INCH HYDNUT800 HYDNUT525-HEAVY HYDNUT530-INCH PUMP1000-8L (-DIGI) HYDNUT HYDNUT1120 HYDNUT550-HEAVY... HYDNUT675-HEAVY AGGREG-E700 HYDNUT1180 HYDNUT700-HEAVY (electrically operated) 4 4: FAG hand pump set for connection to hydraulic nuts up to HYDNUT395 (example)

6 Pressure generators Connectors FAG hand pump set PUMP1000-4L comprising 1) Hand pump with 4 litre oil container/1000 bar 2) Manometer, bar 3) High pressure hose, 2 m long 4) Coupling sleeve 5) Coupling nipple (connector G.) Connection on circumferential face Connection on end face 5: Connection of a hand pump set to a hydraulic nut up to HYDNUT800 (example) 5

7 FAG Hydraulic nuts G 1 /4 D m d 2 d k D k G 1 / 4 g b 1 FAG Hydraulic nuts Hydraulic nut Ordering designation Thread Dimensions Mass Drive-up force W d 2 D m b 1 D K d K g Stroke Piston surface at 800 bar mm cm 2 kg kn HYDNUT50 M50~1, ,6 2,3 245 HYDNUT55 M55~ ,2 2,6 250 HYDNUT60 M60~ ,6 2,8 253 HYDNUT65 M65~ ,5 3,1 284 HYDNUT70 M70~ ,4 328 HYDNUT75 M75~ ,8 3,6 359 HYDNUT80 M80~ ,8 392 HYDNUT85 M85~ ,3 3,9 394 HYDNUT90 M90~ ,2 395 HYDNUT95 M95~ ,3 416 HYDNUT100 M100~ ,5 4,7 435 HYDNUT105 M105~ ,6 4,7 453 HYDNUT110 M110~ HYDNUT115 M115~ ,8 5,2 487 HYDNUT120 M120~ ,4 504 HYDNUT125 M125~ ,6 520 HYDNUT130 M130~ ,8 520 HYDNUT135 M135~ , HYDNUT140 M140~ ,3 552 HYDNUT145 M145~ ,6 6, Hydraulic nuts can be secured in a manner similar to conventional nuts, see page 16. We also supply replacement seals for hydraulic nuts (suffix.seal). Ordering example (for HYDNUT115): HYDNUT115.SEAL. Each hydraulic nut is supplied with 1 set of seals in the original delivery.

8 FAG Hydraulic nuts G 1 /4 D m d 2 d k D k G 1 / 4 g b 1 FAG hydraulic nuts Hydraulic nut Ordering designation Thread Dimensions Mass Drive-up force W d 2 D m b 1 D K d K g Stroke Piston surface at 800 bar mm cm 2 kg kn HYDNUT150 M150~ ,3 6,8 602 HYDNUT155 M155~ ,8 7,2 654 HYDNUT160 M160~ , HYDNUT165 M165~ ,3 8,2 739 HYDNUT170 M170~ ,7 8,6 758 HYDNUT180 M180~ ,1 824 HYDNUT190 M190~ ,5 928 HYDNUT200 M200~ , HYDNUT205 Tr205~ ,2 12, HYDNUT210 Tr210~ , HYDNUT215 Tr215~ ,7 13, HYDNUT220 Tr220~ ,2 13, HYDNUT225 Tr225~ HYDNUT230 Tr230~ , HYDNUT235 Tr235~ ,7 15, HYDNUT240 Tr240~ ,3 16, HYDNUT250 Tr250~ , HYDNUT260 Tr260~ HYDNUT270 Tr270~ , HYDNUT275 Tr275~ , HYDNUT280 Tr280~ ,7 22, HYDNUT290 Tr290~ ,3 23, HYDNUT295 Tr295~ Hydraulic nuts can be secured in a manner similar to conventional nuts, see page 16. We also supply replacement seals for hydraulic nuts (suffix.seal). Ordering example (for HYDNUT260): HYDNUT260.SEAL. Each hydraulic nut is supplied with 1 set of seals in the original delivery. 7

9 FAG Hydraulic nuts G 1 /4 D m d 2 d k D k G 1 / 4 g b 1 FAG Hydraulic nuts Hydraulic nut Ordering designation Thread Dimensions Mass Drive-up force W d 2 D m b 1 D K d K g Stroke Piston surface at 800 bar mm cm 2 kg kn HYDNUT300 Tr300~ , HYDNUT310 Tr310~ HYDNUT315 Tr315~ ,5 27, HYDNUT320 Tr320~ , HYDNUT330 Tr330~ , HYDNUT335 Tr335~ HYDNUT340 Tr340~ , HYDNUT345 Tr345~ , HYDNUT350 Tr350~ HYDNUT355 Tr355~ , HYDNUT360 Tr360~ HYDNUT365 Tr365~ HYDNUT370 Tr370~ HYDNUT375 Tr375~ HYDNUT380 Tr380~ , HYDNUT385 Tr385~ HYDNUT395 Tr395~ HYDNUT400 Tr400~ HYDNUT410 Tr410~ HYDNUT415 Tr415~ Hydraulic nuts can be secured in a manner similar to conventional nuts, see page 16. We also supply replacement seals for hydraulic nuts (suffix.seal). Ordering example (for HYDNUT330): HYDNUT330.SEAL. Each hydraulic nut is supplied with 1 set of seals in the original delivery.

10 FAG Hydraulic nuts G 1 /4 D m d 2 d k D k G 1 / 4 g b 1 FAG hydraulic nuts Hydraulic nut Ordering designation Thread Dimensions Mass Drive-up force W d 2 D m b 1 D K d K g Stroke Piston surface at 800 bar mm cm 2 kg kn HYDNUT420 Tr420~ HYDNUT430 Tr430~ HYDNUT435 Tr435~ HYDNUT440 Tr440~ HYDNUT450 Tr450~ HYDNUT460 Tr460~ , HYDNUT470 Tr470~ HYDNUT480 Tr480~ HYDNUT490 Tr490~ HYDNUT500 Tr500~ HYDNUT510 Tr510~ HYDNUT520 Tr520~ HYDNUT530 Tr530~ HYDNUT540 Tr540~ , HYDNUT550 Tr550~ , HYDNUT560 Tr560~ HYDNUT570 Tr570~ HYDNUT580 Tr580~ HYDNUT590 Tr590~ HYDNUT600 Tr600~ Hydraulic nuts can be secured in a manner similar to conventional nuts, see page 16. We also supply replacement seals for hydraulic nuts (suffix.seal). Ordering example (for HYDNUT500): HYDNUT500.SEAL. Each hydraulic nut is supplied with 1 set of seals in the original delivery. 9

11 FAG Hydraulic nuts G 1 /4 D m d 2 d k D k G 1 / 4 g b 1 FAG Hydraulic nuts Hydraulic nut Ordering designation Thread Dimensions Mass Drive-up force W d 2 D m b 1 D K d K g Stroke Piston surface at 800 bar mm cm 2 kg kn HYDNUT610 Tr610~ HYDNUT625 Tr625~ HYDNUT630 Tr630~ HYDNUT650 Tr650~ HYDNUT655 Tr655~ HYDNUT670 Tr670~ HYDNUT680 Tr680~ HYDNUT690 Tr690~ HYDNUT695 Tr695~ HYDNUT710 Tr710~ HYDNUT720 Tr720~ HYDNUT740 Tr740~ HYDNUT750 Tr750~ HYDNUT760 Tr760~ HYDNUT780 Tr780~ HYDNUT800 Tr800~ HYDNUT830 Tr830~ HYDNUT850 Tr850~ HYDNUT880 Tr880~ HYDNUT900 Tr900~ Hydraulic nuts can be secured in a manner similar to conventional nuts, see page 16. We also supply replacement seals for hydraulic nuts (suffix.seal). Ordering example (for HYDNUT610): HYDNUT610.SEAL. Each hydraulic nut is supplied with 1 set of seals in the original delivery.

12 FAG Hydraulic nuts G 1 /4 D m d 2 d k D k G 1 / 4 g b 1 FAG hydraulic nuts Hydraulic nut Ordering designation Thread Dimensions Mass Drive-up force W d 2 D m b 1 D K d K g Stroke Piston surface at 800 bar mm cm 2 kg kn HYDNUT930 Tr930~ HYDNUT950 Tr950~ HYDNUT1000 Tr1000~ HYDNUT1060 Tr1060~ HYDNUT1080 Tr1080~ HYDNUT1120 Tr1120~ HYDNUT1180 Tr1180~ Hydraulic nuts can be secured in a manner similar to conventional nuts, see page 16. We also supply replacement seals for hydraulic nuts (suffix.seal). Ordering example (for HYDNUT1080): HYDNUT1080.SEAL. Each hydraulic nut is supplied with 1 set of seals in the original delivery. 11

13 FAG Hydraulic nuts Inch thread G 1 /4 D m d 2 d k D k Thread from HYDNUT90-INCH to HYDNUT320-INCH: American National Form Threads Class 3 Thread from HYDNUT340-INCH to HYDNUT530-INCH: Acme General Purpose Threads Class 3G G 1 / 4 b 1 g FAG hydraulic nuts, inch thread Hydraulic nut Thread Dimensions Mass d 2 Flank diameter Number D m b 1 D K d K g Stroke Piston W of turns surface Ordering designation mm inch mm inch per inch mm cm 2 kg kn Drive-up force at 800 bar HYDNUT90-INCH 89,586 3,527 88,212 3, ,2 395 HYDNUT95-INCH 94,742 3,730 93,368 3, ,3 416 HYDNUT100-INCH 99,517 3,918 98,143 3, ,7 435 HYDNUT105-INCH 104,699 4, ,325 4, ,7 455 HYDNUT110-INCH 109,855 4, ,481 4, HYDNUT120-INCH 119,786 4, ,412 4, ,4 504 HYDNUT130-INCH 129,692 5, ,318 5, ,8 520 HYDNUT140-INCH 139,624 5, ,25 5, ,3 552 HYDNUT150-INCH 149,555 5, ,181 5, ,3 6,8 602 HYDNUT160-INCH 159,614 6, ,551 6, , HYDNUT170-INCH 169,139 6, ,067 6, ,7 8,6 758 HYDNUT180-INCH 179,476 7, ,414 6, ,1 824 HYDNUT190-INCH 189,789 7, ,726 7, ,5 928 HYDNUT200-INCH 199,314 7, ,251 7, , HYDNUT220-INCH 219,151 8, ,089 8, ,2 13, HYDNUT240-INCH 239,827 9, ,076 9, ,3 16, HYDNUT260-INCH 258,877 10, ,126 10, HYDNUT280-INCH 279,502 11, ,751 10, ,7 22, Hydraulic nuts can be secured in a manner similar to conventional nuts, see page 16. We also supply replacement seals for hydraulic nuts (suffix.seal). Ordering example (for HYDNUT160-INCH): HYDNUT160.SEAL. Each hydraulic nut is supplied with 1 set of seals in the original delivery.

14 FAG Hydraulic nuts Inch thread G 1 /4 D m d 2 d k D k Thread from HYDNUT90-INCH to HYDNUT320-INCH: American National Form Threads Class 3 Thread from HYDNUT340-INCH to HYDNUT530-INCH: Acme General Purpose Threads Class 3G G 1 / 4 b 1 g FAG hydraulic nuts, inch thread Hydraulic nut Thread Dimensions Mass d 2 Flank diameter Number of turns D m b 1 D K d K g Stroke Piston surface W Ordering designation mm inch mm inch per inch mm cm 2 kg kn Drive-up force at 800 bar HYDNUT300-INCH 299,339 11, ,588 11, , HYDNUT320-INCH 319,075 12, ,324 12, , HYDNUT340-INCH 338,811 13, ,763 13, , HYDNUT360-INCH 359,918 14, ,87 14, HYDNUT380-INCH 379,908 14, ,86 14, , HYDNUT400-INCH 399,923 15, ,875 15, HYDNUT420-INCH 419,913 16, ,865 16, HYDNUT440-INCH 439,903 17, ,855 17, HYDNUT460-INCH 459,918 18, ,87 17, , HYDNUT480-INCH 479,908 18, ,86 18, HYDNUT500-INCH 499,923 19, ,875 19, HYDNUT530-INCH 530,022 20, ,339 20, Hydraulic nuts can be secured in a manner similar to conventional nuts, see page 16. We also supply replacement seals for hydraulic nuts (suffix.seal). Ordering example (for HYDNUT360-INCH): HYDNUT360.SEAL. Each hydraulic nut is supplied with 1 set of seals in the original delivery. 13

15 FAG Hydraulic nuts Reinforced design G 1 /4 b 1 D m d 2 d k D k FAG hydraulic nuts, reinforced design Hydraulic nut Ordering designation Dimensions Mass Drive-up force W d H7 2 D m b 1 D K d K Stroke Piston surface at 800 bar mm cm 2 kg kn HYDNUT100-HEAVY , HYDNUT125-HEAVY , HYDNUT150-HEAVY , HYDNUT175-HEAVY HYDNUT200-HEAVY HYDNUT225-HEAVY HYDNUT250-HEAVY HYDNUT275-HEAVY HYDNUT300-HEAVY HYDNUT325-HEAVY HYDNUT350-HEAVY HYDNUT375-HEAVY HYDNUT400-HEAVY HYDNUT425-HEAVY HYDNUT450-HEAVY HYDNUT475-HEAVY HYDNUT500-HEAVY HYDNUT525-HEAVY HYDNUT550-HEAVY HYDNUT575-HEAVY We also supply replacement seals for hydraulic nuts (suffix.seal). Ordering example (for HYDNUT100-HEAVY): HYDNUT100-HEAVY.SEAL. Each hydraulic nut is supplied with 1 set of seals in the original delivery.

16 FAG Hydraulic nuts Reinforced design G 1 /4 b 1 D m d 2 d k D k FAG hydraulic nuts, reinforced design Hydraulic nut Ordering designation Dimensions Mass Drive-up force W d H7 2 D m b 1 D K d K Stroke Piston surface at 800 bar mm cm 2 kg kn HYDNUT600-HEAVY HYDNUT625-HEAVY HYDNUT650-HEAVY HYDNUT675-HEAVY HYDNUT700-HEAVY HYDNUT750-HEAVY HYDNUT800-HEAVY HYDNUT850-HEAVY HYDNUT900-HEAVY We also supply replacement seals for hydraulic nuts (suffix.seal). Ordering example (for HYDNUT600-HEAVY): HYDNUT600-HEAVY.SEAL. Each hydraulic nut is supplied with 1 set of seals in the original delivery. 15

17 Securing against rotation In some applications, hydraulic nuts remain on the shaft or the adapter sleeve. For these cases, we supply three designs of anti-rotation locking devices, Figure 6. Locking devices of designs SA and SC comprise clamps and hexagon head cap screws. A slot is required in the shaft to the dimensions in Figure 7. Adapter sleeves have this slot as standard. The threaded holes for the hexagon head cap screws are drilled in the press ring before mounting. The anti-rotation locking device SB is secured by means of a set screw and a copper pin. Ordering example: Hydraulic nut with trapezoidal thread 400~5, U-shaped locking device with hexagon head cap screws: HYDNUT400-SC b w Shaft t 7: Dimensions of shaft slot for anti-rotation locking devices SA and SC Hydraulic nut Shaft slot Press ring with thread b w t from to mm HYDNUT100 HYDNUT HYDNUT155 HYDNUT HYDNUT205 HYDNUT HYDNUT270 HYDNUT HYDNUT310 HYDNUT HYDNUT420 HYDNUT HYDNUT480 HYDNUT HYDNUT530 HYDNUT HYDNUT630 HYDNUT HYDNUT710 HYDNUT HYDNUT930 HYDNUT Slot width b w t d 2 Design SA L-shaped locking device with hexagon head cap screws Design SB Locking by set screw and copper pin Design SC U-shaped locking device with hexagon head cap screws 6: Anti-rotation locking devices for FAG hydraulic nuts 16

18 Mounting of rolling bearings using hydraulic nuts The hydraulic nut is used to mount rolling bearings with a tapered bore. Mounting is either carried out dry or by means of the hydraulic method. In the hydraulic method, oil is pressed between the mating surfaces to form an oil film so that the hydraulic nut only needs to apply a slight displacement. Figure 8 shows a spherical roller bearing driven directly up a tapered shaft seat. The bearing is first located on the tapered seat and the hydraulic nut is then screwed onto the threaded portion of the shaft until the bearing is firmly seated. The bearing is pressed onto its seat by activating the hydraulic nut. The amount of axial displacement depends on the reduction required in the radial internal clearance of the bearing. During the drive-up process, the radial internal clearance must be continually measured using feeler gauges. If the hydraulic method is used, the oil pressure at the seat must be relieved for measurement of radial internal clearance. If the reduction in radial internal clearance cannot be measured, for example if the housing shape does not permit this, the axial drive-up can be measured instead. The values for the required reduction in radial internal clearance and the corresponding drive-up are given on pages 19 and 20 for cylindrical roller bearings and spherical roller bearings. If the hydraulic method is used, it takes about 10 to 30 minutes after drive-up, depending on bearing size, for the oil to escape completely from the joint. It is only at this point that the hydraulic nut is removed and the shaft or sleeve nut is screwed into place and secured. Rolling bearings with adapter or extraction sleeves can be mounted in the same way (Figures 9 and 10). 8: Drive-up of a spherical roller bearing onto a tapered shaft journal 9: Mounting of a spherical roller bearing with an adapter sleeve using the hydraulic method 10: Mounting of a spherical roller bearing with an extraction sleeve without using the hydraulic method 17

19 Mounting of rolling bearings using hydraulic nuts Hydraulic nuts are also suitable for mounting hydraulic extraction sleeves, see Figure 11. The piston of the hydraulic nut is abutted against a plate connected to the shaft. Such precautions are not necessary in mounting a hydraulic adapter sleeve, Figure 9. Dismounting of an extraction sleeve is shown in Figure 12. If the shaft is not long enough to prevent constriction of the threaded section, the extraction sleeve must be supported by a thick-walled auxiliary ring. An adapter sleeve can be dismounted if the bearing inner ring is located axially and the piston of the hydraulic nut is abutted, for example against a mounting plate, Figure : Mounting of a spherical roller bearing with an extraction sleeve using the hydraulic method 12: Dismounting of an extraction sleeve using the hydraulic method 13: Dismounting of an adapter sleeve 18

20 Reduction in radial internal clearance of FAG spherical roller bearings with tapered bore Reduction in radial internal clearance of FAG spherical roller bearings with tapered bore Nominal bearing bore diameter Radial internal clearance before mounting Reduction in radial internal clearance 1) Drive-up on taper 1:12 1) Drive-up on taper 1:30 1) Control value for radial internal clearance after mounting Internal clearance group d CN (normal) C3 C4 Shaft Sleeve Shaft Sleeve CN C3 C4 over incl. min max min max min max min max min max min max min max min max min min min mm mm mm mm mm mm ,03 0,04 0,04 0,055 0,055 0,075 0,015 0,02 0,3 0,35 0,3 0,4 0,015 0,02 0, ,035 0,05 0,05 0,065 0,065 0,085 0,02 0,025 0,35 0,4 0,35 0,45 0,015 0,025 0, ,045 0,06 0,06 0,08 0,08 0,1 0,025 0,03 0,4 0,45 0,45 0,5 0,02 0,03 0, ,055 0,075 0,075 0,095 0,095 0,12 0,03 0,04 0,45 0,6 0,5 0,7 0,025 0,035 0, ,07 0,095 0,095 0,12 0,12 0,15 0,04 0,05 0,6 0,75 0,7 0,85 0,025 0,04 0, ,08 0,11 0,11 0,14 0,14 0,18 0,045 0,06 0,7 0,9 0,75 1 1,7 2,2 1,8 2,4 0,035 0,05 0, ,1 0,135 0,135 0,17 0,17 0,22 0,05 0,07 0,7 1,1 0,8 1,2 1,9 2,7 2 2,8 0,05 0,065 0, ,12 0,16 0,16 0,2 0,2 0,26 0,065 0,09 1,1 1,4 1,2 1,5 2,7 3,5 2,8 3,6 0,055 0,08 0, ,13 0,18 0,18 0,23 0,23 0,3 0,075 0,1 1,2 1,6 1,3 1, ,1 4,2 0,055 0,09 0, ,14 0,2 0,2 0,26 0,26 0,34 0,08 0,11 1,3 1,7 1,4 1,9 3,2 4,2 3,3 4,6 0,06 0,1 0, ,16 0,22 0,22 0,29 0,29 0,37 0,09 0,13 1,4 2 1,5 2,2 3,5 4,5 3,6 5 0,07 0,1 0, ,18 0,25 0,25 0,32 0,32 0,41 0,1 0,14 1,6 2,2 1,7 2,4 4 5,5 4,2 5,7 0,08 0,12 0, ,2 0,27 0,27 0,35 0,35 0,45 0,11 0,15 1,7 2,4 1,8 2,6 4,2 6 4,6 6,2 0,09 0,13 0, ,22 0,3 0,3 0,39 0,39 0,49 0,12 0,17 1,9 2,6 2 2,9 4,7 6,7 4,8 6,9 0,1 0,14 0, ,24 0,33 0,33 0,43 0,43 0,54 0,13 0, ,2 3,2 5 7,5 5,2 7,7 0,11 0,15 0, ,27 0,36 0,36 0,47 0,47 0,59 0,15 0,21 2,4 3,4 2,6 3,6 6 8,2 6,2 8,4 0,12 0,17 0, ,3 0,4 0,4 0,52 0,52 0,65 0,17 0,23 2,6 3,6 2,9 3,9 6,5 9 5,8 9,2 0,13 0,19 0, ,33 0,44 0,44 0,57 0,57 0,72 0,2 0,26 3,1 4,1 3,4 4,4 7, ,4 0,13 0,2 0, ,37 0,49 0,49 0,63 0,63 0,79 0,21 0,28 3,3 4,4 3,6 4,8 8,2 11 8,4 11,2 0,16 0,23 0, ,41 0,54 0,54 0,68 0,68 0,87 0,24 0,32 3,7 5 4,1 5,4 9,2 12,5 9,6 12,8 0,17 0,25 0, ,46 0,6 0,6 0,76 0,76 0,98 0,26 0,35 4 5,4 4,4 5, ,5 10,4 14 0,2 0,29 0, ,51 0,67 0,67 0,85 0,85 1,09 0,3 0,4 4,6 6,2 5,1 6,8 11,5 15, ,21 0,31 0, ,57 0,75 0,75 0,96 0,96 1,22 0,34 0,45 5,3 7 5,8 7,6 13,3 17,5 13,6 18 0,23 0,35 0, ,64 0,84 0,84 1,07 1,07 1,37 0,37 0,5 5,7 7,8 6,3 8,5 14,3 19,5 14,8 20 0,27 0,39 0, ,71 0,93 0,93 1,19 1,19 1,52 0,41 0,55 6,3 8,5 7 9,4 15, ,4 22 0,3 0,43 0, ,78 1,02 1,02 1,3 1,3 1,65 0,45 0,6 6,8 9 7,6 10, ,32 0,48 0, ,86 1,12 1,12 1,42 1,42 1,8 0,49 0,65 7,4 9,8 8, , ,6 26 0,34 0,54 0, ,94 1,22 1,22 1,55 1,55 1,96 0,55 0,72 8,3 10,8 9,3 12, ,2 28,3 0,36 0,59 0, ,06 1,38 1,38 1,75 1,75 2,2 0,62 0,81 9,3 12,2 10,6 13,8 23,6 30,8 24,8 32,4 0,44 0,66 0, ,18 1,54 1,54 1,95 1,95 2,5 0,69 0,93 10, ,7 15,8 26,2 35,3 27,6 37,2 0,48 0,73 1, ,31 1,71 1,71 2,15 2,15 2,75 0,77 1,04 11,6 15,6 13,1 17,7 29,3 39,5 30,8 41,6 0,54 0,81 1, ,45 1,9 1,9 2,4 2,4 3,05 0,85 1,15 12,7 17,2 14,5 19,5 32,4 43, ,6 0,95 1, ,6 2,1 2,1 2,65 2,65 3,35 0,95 1,28 14,3 19,2 16,2 21,8 36,2 48, ,2 0,65 1,15 1,7 1) Valid only for solid steel shafts and hollow shafts with a bore no larger than half the shaft diameter. Note: Bearings with a radial internal clearance before mounting in the upper half of the tolerance range are mounted using the larger value for reduction in radial internal clearance or axial drive-up, bearings in the lower half of the tolerance range are mounted using the smaller value for reduction in radial internal clearance or axial drive-up. 19

21 Reduction in radial internal clearance of FAG cylindrical roller bearings with tapered bore Reduction in radial internal clearance of FAG cylindrical roller bearings with tapered bore Nominal bearing bore diameter Radial internal clearance before mounting Reduction in radial internal clearance 1) Drive-up on taper 1:12 1) Control value for radial internal clearance after mounting Internal clearance group d CN (normal) C3 C4 Shaft Sleeve CN C3 C4 over incl. min max min max min max min max min max min max min min min mm mm mm mm mm ,035 0,06 0,045 0,07 0,055 0,08 0,015 0,02 0,3 0,35 0,3 0,4 0,02 0,025 0, ,04 0,065 0,055 0,08 0,07 0,095 0,02 0,025 0,35 0,4 0,35 0,45 0,02 0,025 0, ,045 0,075 0,06 0,09 0,075 0,105 0,025 0,03 0,4 0,45 0,45 0,5 0,02 0,03 0, ,05 0,08 0,07 0,1 0,09 0,12 0,03 0,035 0,45 0,55 0,5 0,65 0,02 0,035 0, ,06 0,095 0,085 0,12 0,11 0,145 0,035 0,04 0,55 0,6 0,65 0,7 0,025 0,04 0, ,07 0,105 0,095 0,13 0,12 0,155 0,04 0,045 0,6 0,7 0,65 0,8 0,03 0,05 0, ,09 0,13 0,115 0,155 0,14 0,18 0,045 0,055 0,7 0,85 0,8 0,95 0,045 0,065 0, ,1 0,145 0,13 0,175 0,16 0,205 0,055 0,065 0,85 1 0,95 1,1 0,045 0,07 0, ,11 0,16 0,145 0,195 0,18 0,23 0,06 0,075 0,9 1,2 1 1,3 0,05 0,075 0, ,125 0,175 0,16 0,21 0,195 0,245 0,065 0, ,3 1,1 1,5 0,06 0,08 0, ,14 0,195 0,18 0,235 0,22 0,275 0,075 0,095 1,2 1,5 1,3 1,7 0,065 0,09 0, ,155 0,215 0,2 0,26 0,245 0,305 0,085 0,105 1,3 1,6 1,4 1,8 0,07 0,1 0, ,17 0,235 0,22 0,285 0,27 0,335 0,095 0,115 1,5 1,8 1,6 2 0,075 0,105 0, ,185 0,255 0,24 0,31 0,295 0,365 0,105 0,125 1,6 2 1,7 2,3 0,08 0,125 0, ,205 0,28 0,265 0,34 0,325 0,4 0,115 0,14 1,8 2,2 1,9 2,4 0,09 0,13 0, ,225 0,305 0,29 0,37 0,355 0,435 0,13 0,16 2 2,5 2,2 2,7 0,095 0,14 0, ,255 0,345 0,33 0,42 0,405 0,495 0,14 0,17 2,2 2,6 2,5 2,9 0,115 0,165 0, ,285 0,385 0,37 0,47 0,455 0,555 0,15 0,185 2,3 2,8 2,6 3,1 0,135 0,19 0, ,315 0,425 0,41 0,52 0,505 0,615 0,16 0,195 2,5 3 2,8 3,4 0,155 0,215 0, ,35 0,47 0,455 0,575 0,56 0,68 0,17 0,215 2,7 3,4 3,1 3,8 0,18 0,24 0, ,38 0,5 0,5 0,62 0,62 0,74 0,185 0,24 2,9 3,7 3,5 4,2 0,195 0,26 0, ,435 0,575 0,565 0,705 0,695 0,835 0,2 0,26 3,1 4,1 3,6 4,7 0,235 0,305 0, ,485 0,645 0,63 0,79 0,775 0,935 0,22 0,28 3,4 4,4 3,9 5,3 0,26 0,35 0, ,54 0,71 0,7 0,87 0,86 1,03 0,24 0,31 3,7 4,8 4,3 5,5 0,3 0,39 0, ,6 0,79 0,78 0,97 0,96 1,15 0,26 0,34 4,1 5,3 4,8 6,2 0,34 0,44 0, ,665 0,875 0,865 1,075 1,065 1,275 0,28 0,37 4,4 5,8 5,2 7 0,385 0,5 0, ,73 0,97 0,96 1,2 1,2 1,44 0,31 0,41 4,8 6,4 5,7 7,6 0,42 0,55 0, ,81 1,07 1,07 1,33 1,33 1,59 0,34 0,45 5,3 7 6,3 8,3 0,47 0,62 0,85 1) Valid only for solid steel shafts and hollow shafts with a bore no larger than half the shaft diameter. 20 Note: Bearings with a radial internal clearance before mounting in the upper half of the tolerance range are mounted using the larger value for reduction in radial internal clearance or axial drive-up, bearings in the lower half of the tolerance range are mounted using the smaller value for reduction in radial internal clearance or axial drive-up.

22 Drive-up gauge for hydraulic nuts If the radial internal clearance cannot be measured with a feeler gauge due to poor accessibility, the axial drive-up of the bearing can be measured on the tapered seat. This can be achieved by means of a gauge mounted on the end face of the hydraulic nut, Figure 14. If the axial threaded connector hole G. of the hydraulic nut is taken up by the pump, the second axial hole can be used for the drive-up gauge. a G 1 / 4 Ø3 (max 4) The bearing is first placed in its starting position. The oil pressure required is dependent on the bearing size and the number of displacement surfaces and is given in the user manual. A hand pump set with a digital manometer should be used, see TPI WL The dial gauge is set to zero. The bearing is driven up by pumping until the specified drive-up distance is achieved. b 15 The user can determine which of the metering needles supplied should be used from the comprehensive user manual included with each gauge. Ordering designation: HYDNUT.GAUGE-DISPLACE 1 drive-up gauge with dial gauge, 2 metering needles, 62 mm long, 2 metering needles, 70 mm long, 2 metering needles, 100 mm long, 2 Usit rings, 2 O rings, 1 plastic case with lining c 14a to c: Drive-up gauge HYDNUT.GAUGE-DISPLACE 21

23 Mounting Manager as an aid in mounting of bearings FAG Mounting Manager The FAG computer program MOUNTING MANAGER is a userfriendly aid for ensuring the correct mounting of bearings and offers the following options: it shows various mechanical and hydraulic mounting methods it calculates the data required for mounting in relation to reduction in radial internal clearance, drive-up and start pressure it gives useful mounting advice and it generates a list of the accessories and tools required Further information on mounting and dismounting of bearings is offered in the integrated library containing appropriate publications, Technical Information documents, etc. a) Mounting of bearings with tapered bore by measurement of the axial drive-up The bearing is placed in its starting position on the tapered bearing seat with a hydraulic nut. The required starting pressure defined for each individual bearing is set in the hydraulic nut by means of the digital manometer. The dial gauge mounted on the hydraulic nut is used to measure the axial drive-up until the final position is reached on the tapered seat. This mounting method: gives considerably shorter and simpler mounting offers very high security and accuracy allows the correct mounting of sealed bearings b) Mounting of bearings with tapered bore by measurement of the reduction in radial internal clearance When the bearing is pushed onto the tapered seat, the inner ring is expanded and the radial internal clearance is thereby reduced. This reduction in radial internal clearance is valid as a measure of the firm seating of the bearing. It is measured by means of a feeler gauge. The FAG Mounting Manager is available on CD-ROM. Ordering designation: CD-MM 1.1 Calculation possibilities for mounting methods: Bearings with a tapered bore are mounted either directly on the tapered shaft or journal or by means of an adapter sleeve or extraction sleeve on the cylindrical shaft. The internal clearance is set either by conventional means using feeler gauges or by means of the axial drive-up. 22

24 General mounting aid for the hydraulic method The use of FAG hydraulic nuts is not restricted to the mounting of rolling bearings. Other press fits (e.g. in the mounting of gears, drive wheels and couplings) can also be realised by means of the hydraulic method using hydraulic nuts. Considerable pressing forces are often required in general machine building and especially in shipbuilding. Such forces can be applied cost-effectively using hydraulic nuts. Figures 15 to 18 show examples of mounting. 15: Mounting of a press fit between a rudder and rudder spindle 16: A hydraulic nut is used to realise the press fit between a propeller hub and ship driveshaft. 17: Mounting of a coupling 18: Gear mounting using a hydraulic nut 23

25 Comparison of ordering designations Comparison of ordering designations Ordering designation for Europe HYDNUT HYDNUT.SEAL HYDNUT -HEAVY HYDNUT -HEAVY.SEAL HYDNUT -INCH HYDNUT...-SA HYDNUT...-SB HYDNUT...-SC HYDNUT.GAUGE-DISPLACE Ordering designation for countries outside Europe HYD.NUT HYD.NUT.SEAL HYD.NUT HEAVY HYD.NUT HEAVY.SEAL HYD.NUT INCH HYD.NUT...SA HYD.NUT...SB HYD.NUT...SC HYD.NUT.DISPLACE.GAUGE 24

26 96/05/07 Printed in Germany by Druckhaus WEPPERT GmbH Schaeffler KG Postfach Schweinfurt (Germany) Georg-Schäfer-Strasse Schweinfurt (Germany) Service Hotline: Phone Fax Internet Every care has been taken to ensure the correctness of the information contained in this publication but no liability can be accepted for any errors or omissions. We reserve the right to make technical changes. Schaeffler KG 2007, May Reproduction in whole or in part without our authorisation is prohibited. TPI WL 80-57/2 EA