Large Size Tapered Roller Bearings ULTAGE Metric Series

Transcription

1 Lage Size Tapeed Rolle Beaings ULTAGE Metic Seies AT. No. 3035/E

2 Lage Size Tapeed Rolle Beaings ULTAGE Metic Seies Lage size tapeed olle beaings (ULTAGE metic seies, OD 270) delive longe life, highe load atings, and highe speed capabilities. Developed as the new standad of NTN beaings, the ULTAGE seies will contibute to impovements in industial machiney today and into the futue. Highe Load apability Allowable misalignment (6 ) Unde conditions of F 0.35 Highe Reliability Geate high load capacity by optimizing intenal design Longe maintenance intevals Highe Limiting Speed Up to 10% incease of allowable speed by optimizing the inne ing, lage-end ib, and the olle end "ULTAGE " (a name ceated fom the combination of "Ultimate," signifying efinement,and "Stage," signifying NTN's intention that this seies of poducts be employed in divese applications) is the geneal name fo NTN's new geneation of beaings that ae noted fo thei industy-leading pefomance. 1

3 Life x3 Basic load ating Up to allowable highe speed Dimensional change +30% +10% 1/10 age Rolle guided type Oute ing Though hadened steel applied Lowe dimensional change ove time Rolles Optimized cowning Inne ing Though hadened steel applied Lowe dimensional change ove time Optimized ib design INDEX 1. Featues The highest level of eliability 1.2 Allowable misalignment 1.3 Allowable speed 1.4 Impoved demensional stability ove time 1.5 Easily adaptable 2. Beaing Numbe 4 3. Dimension Table Single ow tapeed olle beaings Double ow tapeed olle beaings (Outside diection) Double ow tapeed olle beaings (Inside diection) 10 2

4 1. Featues 1.1 The highest level of eliability The optimized olle cowning delives a damatically inceased load ating by bette distibuting load acoss the olle length, geatly educing edge stess concentations as shown in Fig.1. Tested life: 3.0 times lage than conventional beaings Basic load ating: 30% lage than conventional beaings 1.2 Allowable misalignment Misalignment : ad (6 ) Optimizations made to the cowning shape allow combinations of 0.35 and misalignment up to ad (6 ) to be used. Minimum equied load : Fig.1 shows the stess distibution when the adial load is below Edge stess is significantly deceased and contact stesses ae bette distibuted along the length of the olle, as compaed the stesses esulting fom a conventional design. Studied conditions Beaing size 30316U φ80 φ Load 102 Misalignment ad. Since allowable misalignment vaies depend on combination of load and misalignment, please consult NTN engineeing. ontact stess Small dia. side ULTAGE onventional Axial position on olle Fig. 1 Stess distibution on olle Optimized contact point Finish impoved Point of contact position of the olle Rolle Lage dia. side Rib Inne ing Fig. 2 Optimized design between a olle and an inne ing ib 1.3 Allowable speed The optimized design between the olle and inne ing ib end makes it possible to minimize otational toque and tempeatue ise, allowing fo up to 10% highe allowable speed when compaed to a conventional design as shown in Fig. 2, 3 and 4. Toque N m ULTAGE onventional 1.4 Impoved demensional stability ove time The special heat teatment to the beaing steel allows fo bette dimensional stability ove time, and educes dimensional change duing opeation. Less dimensional change 1/10 compaed with though hadened steel 1/4 compaed with cabuized steel 1.5 Easily adaptable Bounday dimensions and toleance of beaings comply with ISO 355 (JIS B 1512), ISO 492 (JIS B 1514). Tempeatue ise Rotation speed min ULTAGE Fig. 3 Toque compaison onventional Rotation speed min -1 Fig. 4 Tempeatue ise test 3

5 2. Beaing Numbe 2.1 Single ow tapeed olle beaings Beaing numbe U UTG Type code:ultage Intenationally intechangeable tapeed olle beaings Nominal boe diamete 140 Dimension seies 03 Beaing type (Single ow tapeed olle beaings) 2.2 Double ow tapeed olle beaings (Outside diection) Beaing numbe X UTG Type code ULTAGE Nominal boe diamete 140 Dimension seies 03 Beaing type (Double ow tapeed olle beaings (Outside diection)) 2.3 Double ow tapeed olle beaings (Inside diection) Beaing numbe UTG Type code ULTAGE Nominal boe diamete 160 Dimension seies 31 Beaing type (Double ow tapeed olle beaings (Inside diection)) 4

6 3. Dimension Table 3.1 Single ow tapeed olle beaings T 1 Equivalent adial load P XF Y B F F Y2 Po 0.5F Yo When Po F use Po F that of conventional beaings. 5 d d Bounday dimensions D T B s min 1) 1s min 1) Beaing UUTG UTG UUTG UTG UUTG UTG UUTG UUTG UUTG UTG UUTG UUTG UUTG UTG XUUTG UUTG UUTG UTG UTG XUUTG UUTG UUTG UTG UTG XUUTG XUUTG UUTG UUTG UTG UTG XUUTG XUUTG UTG UTG UTG UTG

7 T 1 Equivalent adial load P XF Y B F F Y2 Po 0.5F Yo When Po F use Po F that of conventional beaings. d d Bounday dimensions D T B s min 1) 1s min 1) Beaing XUUTG XUUTG UTG UTG UTG UTG XUUTG XUUTG UTG UTG XUUTG XUUTG UTG UTG UTG XUUTG XUUTG UTG UTG XUUTG XUUTG UTG UTG XUUTG UTG XUUTG UTG UTG UTG UTG UTG UTG UTG UTG UTG

8 3. Dimension Table 3.2 Double ow tapeed olle beaings (Outside diection) B1 1 Equivalent adial load P XF Y F F 1 Y Y2 Po F Yo that of conventional beaings. d Bounday dimensions d D B s min 1) 1s min 1) Beaing XUUTG UTG XUUTG UTG UUTG UTG UTG UUTG UUTG XUUTG UTG UTG UUTG XUUTG UTG UTG UTG UTG UUTG UUTG UTG UTG UTG UTG UUTG UUTG UTG UTG UTG UTG UUTG UUTG

9 B1 1 Equivalent adial load P XF Y F F 1 Y Y2 Po F Yo that of conventional beaings. d d D Bounday dimensions B1 s min 1) 1s min 1) Beaing UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG

10 3. Dimension Table 3.2 Double ow tapeed olle beaings (Outside diection) B1 1 Equivalent adial load P XF Y F F 1 Y Y2 Po F Yo that of conventional beaings. 9 d d Bounday dimensions D B1 s min 1) 1s min 1) Beaing Remaks: Beaing maked esignate beaing with hollow olles and pin type cages UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG /500UTG /500UTG /500UTG /500UTGG /530UTG /530AUTGG /560UTGG /600UTG /600UTGG /670UTGG /710UTGG

11 3.3 Double ow tapeed olle beaings (Inside diection) 1 1 B Equivalent adial load P XF Y F F 1 Y Y2 Po F Yo that of conventional beaings. d Bounday dimensions d D B1 s min 1) 1s min 1) Beaing UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG UTG /500UTG /500UTGG /630UTGG /710BUTGG Remaks: Beaing maked esignate beaing with hollow olles and pin type cages. 10