Catalog: Precision Rolling Bearings | |
| precision rolling bearings page technical data contents 1 classification of ... precision rolling bearings for machine tools q main spindle ... bearings w ball screw support bearings 2 4 2 4 15 5 7 11 14 21 16 20 21 26 22 ... 32 33 37 38 47 40 41 47 53 48 48 50 1 2 bearing selection and shaft housing design q ... bearing selection w bearing accuracy e bearings and rigidity r designing bearing and ... housing 5 3 load rating and life q bearing life w static load rating and allowable ... axial load 16 4 allowable speed 5 bearing arrangements and structures of bearings ... for main spindles qwerqwertyuio bearing arrangement for main spindles bearing ... selection based on bearing arrangement for main spindle adjustable ... | |
| technical data 1 classification of precision rolling bearings for machine ... tools 1 main spindle bearings table .1 types of precision rolling ... bearings for machine tools bearing type standard cross section bearing ... u 72c high-speed 2la-hse9 5s-2la-hse9 bearing bore mm contact angle remarks ¡a ... bearing type code containing a suffix u means ... an ultage series bearing optimized interior structure and resin ... temperature rise applicable to 79 and 70 types with bore diameter of 10 to ... 130 mm ¡bearings with prefix 5s have ceramic balls ¡ ... ultage series ¡use of special material and introduction of surface modification ... to much improved wear resistance and anti-seizure property ¡optimized ... structure lead to higher speed rigidity and reliability ¡bearings with prefix 5s ... | |
| technical data bearing type standard cross section bearing ... type bearing bore mm contact angle remarks ¡the ... boundary dimensions of the n10hsk highspeed single-row ... cylindrical roller bearing are the same as those of the n10k only ... the bearing clearance is non-interchangeable ¡a ... ceramic-roller-type 5s-n10 is available on request ¡ultage ... series ¡optimized internal design allows higher speed and results in ... temperature rise ¡the cage is made of a special resin to cope with a high- ... maximum speed is higher than that of the conventional high-speed cylindrical ... roller bearing n10hsk ¡ultage series ¡this is a ... maintaining the high-speed performance of the n10hsrk type this type boasts lower ... noise reduced air and oil consumption and positively improves operating ... | |
| technical data 2 ball screw support bearings bearing type cross section bearing type ... light-contact angular contact thrust ball bearing for ball screws sealed type ... bearing bore mm contact angle remarks ¡ultage ... ¡surface modification treatment on the bearing ring raceways has led to a longer ... bearing life and much improved fretting resistance ¡ ... grease the sealed type boasts a longer bearing life and simpler maintenance work ¡all ... variants are flush-ground and are provided with a standard preload ... 60 ht 6 40 30 ¡the allowable axial load of this bearing type is greater owing to ... the improved interior design 292 293 angular contact ball bearing ... for ball screws ¡a clearance remains between the ... inner ring of radial bearing and the inner rings of both thrust bearings ... | |
| technical data pmax y z 2 effect of foreign matter the effect of foreign ... trapped foreign matter ntn performs a bearing life calculation assuming that the size ... of foreign matter and the stress concentration area in the ... middle portion the size of this area corresponds with that of the ... the surface layer as well as the amount of foreign matter significantly affect the ... bearing life dented raceway fig 3.2 calculation ... model normal raceway ntn s new bearing life formula the correlation between ... the ntn s life correction factor antn and corrected rating life lnm is defined by ... contamination with foreign matter and oil film parameter 0.1 antn 50 c ... p dynamic equivalent load p index 3 ball bearing 10/3 roller bearing 1 effect of ... | |
| technical data 2 bearing selection based on bearing arrangement ... for main spindle an optimal bearing product that best suits the application ... is selected by referring to the bearing selection table in table 5.2 which ... contains the possible bearing arrangements for main spindles ¡ ... designate the free side and fixed side ¡select the bearing ... xii on the free or fixed side table 5.2 bearing selection table fix side free side ... lubrication bearing specifications system applicable ... product groups/ultage steel balls/ceramic balls 15° 25° 79 llb/5s-79 llb ... hse9 2la-hse0/5s-2la-hse0 ¡select a set of bearing specifications applicable to ... system suitable for the selected bearing specifications ¡select a product group ... considerations for selection procedure bearing selection 1 high-speed performance ... | |
| technical data 4 bearing jacket cooling system with a built-in ... spindle is directly driven by a motor and is therefore suitable for rapid ... heat generated by the motor affects the bearing overheating of the bearing as well as ... degradation of the grease can occur this situation ... must be strictly avoided when designing a cooling system with jacket cooling ... considered considerations about cooling of jacket a typical bearing arrangement is ... shown in fig 5.4 and 5.5 comprising a double-row cylindrical ... roller bearing and an angular contact ball bearing set the cooling groove on the ... an area above the angular contact ball bearings and does not cool the double-row ... cylindrical roller bearing effectively note that the fit of the ... | |
| technical data 8 new technologies 1 the new ... ultage series of super 2 new material and new surface high-speed precision ... bearings for machine tool main spindles ntn has ... improved efficiency reliability quality and environmental responsibility for ... tools by developing the ultage series of super-high-speed precision bearings ... this new line of bearings demonstrates excellent performance ... thanks to the optimal internal design a new approach to surface quality and ... the use of special materials special grease and ... a new word coined by combining ultimate and stage to stand for ntn s wish to ... realize the ultimate level of precision bearing design modification technology the ... ultage super high-speed precision bearing series for machine tool main spindles ... | |
| technical data eco-friendly air-oil lubricated ... angular contact ball bearings and cylindrical roller bearings when ... air-oil lubricated angular contact ball bearing hsl/hsfl series or cylindrical ... roller bearing n10hsl[k series can reduce the ... emissions of oil mist and noise 1 reduction of oil mist the eco- ... friendly air-oil lubricated bearing does not spray compressed air from the ... instead it uses the centrifugal force of the rotating inner ring to supply ... lubricating oil into the bearing for this reason this type of bearing ... conserves both air and oil in addition it reduces the amount ... of oil mist emitted from the labyrinth ... seal of the spindle the following photographs ... the difference between the amount of oil mist emitted from the conventional ... | |
