Catalog: Precision Rolling Bearings | |
| section bearing type bearing bore mm contact angle remarks ¡the boundary dimensions ... plug gage ta 30 30 160 160 ¡taper gage for n10-hsk single-row cylindrical roller ... adjustment gauge 35 160 ¡clearance gage for n10-hskk n10-hsrk single-row ... 330 60° 5620 m double-direction angular contact thrust ball bearing hta9u hta0u 5s- ... preload sleeve and a duplex angular ball bearing allows the user to adjust the ... preload of an angular ball bearing in a wider range from a light ... 100 25 25 50 320 320 130 190 nominal contact angle of 10° or greater 17° or smaller ... ¡hta9db series bearings are fully compatible with 5629 series ... bearings 256 267 30° 40° ¡hta0db series bearings are fully compatible with 5620 series ... bearings angular contact ball bearing for axial load 329 272 ¡thin-wall type iso- ... | |
| technical data 2 ball screw support bearings bearing type cross section bearing type ... type bst lxl/l588 2a-bst lxl/l588 light-contact angular contact thrust ball bearing for ... ball screws sealed type bearing bore mm ... contact angle remarks ¡ultage series ¡surface ... interior design 292 293 angular contact ball bearing for ball screws ¡a ... bearing and the inner rings of both thrust bearings allowing the user to determine ... the preload by for example tightening a nut etc ¡the ... bearing clearance on certain preloaded bearings is controlled in advance so that an ... tightening the inner rings on both thrust bearing with nuts or equivalent means ¡ ... -lubricated 294 295 axn needle roller bearings with double-direction thrust needle ... | |
| bearing accuracy accuracies of rolling bearings that is dimensional accuracy and ... running accuracy of rolling bearings are defined by applicable iso standards ... and jis b 1514 standard rolling bearings tolerances tables 2.4 and 2.5 the ... a bearing by one revolution methods for measuring the accuracy of rolling ... bearings optional methods are described in jis b ... 1515 measuring methods for rolling bearings table 2.6 summarizes some typical ... methods for measuring running accuracy of rolling ... bearings table 2.4 bearing types and applicable ... tolerance bearing type angular contact ball bearings cylindrical roller bearigns ... needle roller bearings metric tapered roller bearings inch j ... series double row angular contact thrust ball bearings jis b 1514 ansi/abma std. ... | |
| technical data 3 bearings and rigidity the rigidity of the main ... and raceway surface under load usually bearings are preloaded in order to increase the ... bearing has a higher rigidity than a ball bearing of the same size however having ... a larger bearing is disadvantageous for high-speed applications to sum up the ... rigidity each type of the ntn angular contact ball bearing for a machine tool is ... according to optimized specifications for interior structure axial displacement ... element ceramic and steel certain ntn bearings incorporate ceramic rolling elements as ... type of bearing is accordingly greater bearings rigidity the rigidity of a bearing ... material of rolling elements 4 bearing contact angle 5 preload on bearing bearing ... steel ball axial displacement m ceramic ball ... | |
| sliding every rolling element m ball in an angular contact a ball bearing ... 2.12 a revolving object tends to a m force the axis of rotation to a vertical or ... a result the rolling element develops a force to alter the orientation of the axis of ... rotation this force is known as a gyratory moment m when ... the force due to the gyratory moment is greater ... than the resistance force rolling element load multiplied by the ... to provide a sufficient resistance force to inhibit gyratory sliding ntn s ... will occur can be calculated by the formula below mkkbc sin dw 2 m b 1 10 0.45 n2 m ... wear start generally it is necessary for a bearing of a highspeed main spindle ... spindle therefore the optimum bearing for main spindle must be selected though ... point in an operating arrangement for ntn angular contract ball bearings for ... | |
| technical data 1 effect of foreign matter on correlation between load p/c ... between p/c and antn effect of foreign matter in ball bearing 100 50 35 16 ... contaminated when stationary rolling bearings are subjected to static loads they ... partial permanent deformation of the contact surfaces at the contact point between ... the subsequent smooth operation of the bearings is impaired it has been found through ... occurring at the most heavily stressed contact point between the raceway and the ... occurs it applies to pure radial loads for radial bearings and to pure axial loads ... for thrust bearings the maximum applied load values for ... contact stress occurring at the rolling element ... and raceway contact points are given below 1 0.01 0.1 p/c ... | |
| bearing arrangements and structures of bearings for main spindles 1 bearing arrangement ... for main spindles typical examples of ... bearing arrangements for main spindles of machine tools are ... examples of bearing arrangements for main spindles bearing arrangement for ... double-direction angular contract thrust ball bearing double-row cylindrical ... bearing high-speed duplex angular contact ball bearing for axial load single-row ... variant of type [type duplex angular contact ball bearing dbt arrangement double- ... bearing high-speed duplex angular contact ball bearing for axial load single-row ... | |
| selection based on bearing arrangement for main spindle an optimal bearing product ... the possible bearing arrangements for main spindles ¡designate the free side ... applicable product groups/ultage steel balls/ceramic balls 15° 25° 79 llb/5s-79 llb ... ¡choose a lubrication system suitable for the selected bearing specifications ¡ ... considerations considerations for selection procedure bearing selection 1 ... high-speed performance general high low contact angle 15° 20° 25° 30° grease ... lubrication sealed duplex angular contact ball bearing or adjustable preload ... bearing mechanism duplex angular contact ball bearing single-row angular contact ... ball bearing or duplex angular contact ball bearing w ball bush angular contact ... ball bearing for radial load contact angle 30° bearing arrangement or ... | |
| ntn main spindle bearings 8 duplex arrangement codes for angular ... contact ball bearings each duplex ball bearing has a product number and duplex ... code etched on its side face on angular contact ball bearing sets of three or more each ... align the mark when assembling the bearings note that duplex angular contact ball ... grinding and universal matching angular contact ball bearings are often combined for a ... rows of two or more when combining many bearings it is important to control the ... accuracies of the bearings and to align their face heights in a ... the specified clearance and preload for df db and dt sets but it is possible ... only if the combined bearings have the same clearance/preload symbols ... flush grinding technique is employed for standard bnt series 0 series and 2 ... | |
| ntn main spindle bearings main spindle bearings 11 angular contact ball bearings for ... axial loads contents 11 angular contact ball bearings for axial loads q features and ... r accuracy of double-direction angular contact thrust ball bearings t accuracy of high ... -speed duplex angular contact ball bearings for axial loads y basic preload u shaft ... lubrication specifications o angular contact ball bearings for axial loads hta u ... tables double-direction angular contact thrust ball bearings angular contact ... ball bearings for axial loads 247 ... | |
| ntn main spindle bearings 11 angular contact ball bearings for axial loads 1 ... and types ntn provides a range of thrust bearings for the main spindles this ... includes 5629 and 5620 series for high axial rigidity contact angle 60° ... hta ua series high-speed duplex angular contact ball bearings for axial loads with ... optimized internal design contact angle 40° 30° these bearings are used ... series double-row cylindrical roller bearings matched bearings must have the same ... diameter table 11.1 types of angular contact ball bearings for axial loads 5629 and ... hta9u a db series bearing type initial contact angle cage material 60 high-strength ... in both directions due to a larger contact angle rigidity in axial directions is ... | |
| main spindle bearings !0 dimension tables for angular contact ... ball bearings double-direction angular contact thrust ball bearings 5629 series ... contact angle 60° d 100 320mm t1 c r1 r j d ew ... 440 144 72 1 minimum allowable value for corner radius dimension r or r1 2 ... circumscribed circle diameter of balls 256 ... | |
| main spindle bearings double-direction angular contact thrust ... ball bearings 5620 series contact angle 60° d 25 320mm t1 c r1 r j d ew d ... 102 1 300 108 1 minimum allowable value for corner radius dimension r or r1 2 ... circumscribed circle diameter of balls 258 ... | |
| main spindle bearings angular contact ball bearings for axial loads steel ball ... type hta9ua series contact angle 30° d 100 320mm 2b r1 r r1 rddd1 ... 76 000 81 000 104 000 108 000 static thrust load capacity kn kgf limiting speed min ... 1 2.1 2.1 3 3 1 minimum allowable value for corner radius dimension r or r1 260 ... | |
| main spindle bearings angular contact ball bearings for axial loads steel ball ... type hta9u series contact angle 40° d 100 320mm 2b r1 r r1 rddd1 ... 84 500 90 500 115 000 120 000 static thrust load capacity kn kgf limiting speed min ... 1 2.1 2.1 3 3 1 minimum allowable value for corner radius dimension r or r1 262 ... | |
| main spindle bearings angular contact ball bearings for axial loads steel ball ... type hta0ua series contact angle 30° d 50 320mm 2b r1 r r1 rddd1 ... 106 000 113 000 135 000 139 000 static thrust load capacity kn kgf limiting speed min ... 68 500 71 500 1 minimum allowable value for corner radius dimension r or r1 264 ... | |
| main spindle bearings angular contact ball bearings for axial loads steel ball ... type hta0u series contact angle 40° d 50 320mm 2b r1 r r1 rddd1 ... 118 000 125 000 150 000 155 000 static thrust load capacity kn kgf limiting speed min ... 1470 1520 1 minimum allowable value for corner radius dimension r or r1 266 ... | |
| main spindle bearings angular contact ball bearings for axial loads ceramic ball ... type 5s-hta0ua series contact angle 30° d 50 130mm 2b r1 r r1 rddd1 ... 900 11 500 14 100 14 500 20 700 static thrust load capacity kn kgf limiting speed min ... 130 1 minimum allowable value for corner radius dimension r or r1 268 ... | |
| main spindle bearings angular contact ball bearings for axial loads ceramic ball ... type 5s-hta0u series contact angle 40° d 50 130mm° 2b r1 r r1 rddd1 ... 000 12 800 15 700 16 100 23 000 static thrust load capacity kn kgf limiting speed min ... 6 300 9 000 1 minimum allowable value for corner radius dimension r or r1 270 ... | |
| ntn ball screw support bearings 13 ball screw support bearings ntn ballscrew ... bearings are optimized to support a ballscrew these bearings are categorized as shown ... 17 17 6 20 20 60 60 40 50 70 open type thrust angular contact ball bearing with 60° ... contact angle bst generally used with grease ... /l588 grease-lubricated sealed angular contact ball bearing with 60° contact angle 2a- ... bst lxl/l588 ht axn arn duplex angular contact ball bearing with 30° contact angle ... roller bearing with double-direction thrust needle roller bearing generally used ... roller bearing with double-direction thrust cylindrical roller bearing generally ... used with oil lubrication 1 angular contact thrust ball bearings bst-1b lxl/l588 ... | |
| ntn ball screw support bearings easy handling 2a-bst lxl type and bst ... lxl grease-lubricated sealed angular contact ball bearings eliminate the need for ... use seals in different colors are used for the front and back sides the front side ... configuration during assembly load ball plate sliding db set back faces in ... suj2 with special heat treatment suj2 ball 98 load n 2560 max contact surface ... tests 2a-bst-1b lxl/l588 wear of ball wear ratio 1.2 conventional type 1 0.8 ... 0.6 0.4 ball screw support thrust angular contact ball bearings have a ... in table 13.3 in this test a fixed ball is pushed against a plate and ... reciprocated for a fixed period the volume of ball and ... heat treatment and special grease light-contact seal type amount of wear is reduced to ... | |
| ntn ball screw support bearings 4 grease life test service life of the ... fig 13.8 special grease is available for only the light-contact seal type 2 ... duplex angular contact ball bearings ht series ht type duplex angular ... contact ball bearings feature larger axial load capacity ... same dimensions as a standard angular contact ball bearing contact angle 30° ... bearings smaller than the bst type are available ... for use in small products table 13.6 test ... °c evaluated with deep groove ball bearing 6204 20 47 14 67 67 10000 150 ... 13.8 grease life ratio 3 needle roller bearings with double-row thrust needle roller ... bearings axn series needle roller bearings with double-row thrust cylindrical ... roller bearings arn series axn and arn type bearings ... | |
| ntn ball screw support bearings accuracy of axn and arn type table 13. ... d over incl mean bore dia 1 deviation thrust inner 1 ring bore dia deviation mean ... radial runout inclination outer ring 2 thrust dmp class 5 high low class 4 high low ... and axial rigidity basic preloads for each type of ball screw support ... bearings are shown in the dimension tables the ... depending on the required rigidity contact ntn in such a case in the axn and arn ... is normally enhanced by tightening the thrust bearing rings to supply preload ... adjust the clearance a between the both thrust bearing rings and radial bearing rings ... fig 13.13 is also available ask ntn for details axial rigidity of the 2a-bst ... | |
| ball screw support bearings dimension tables angular contact thrust ... ball bearings for ball screws bst series contact angle d 17 ... 10 300 101 10 300 108 11 000 108 11 000 contact sealed type coa basic static rated load ... -1blxl 1 minimum allowable value for chamfer dimension r or r1 294 ... | |
| ball screw support bearings angular contact thrust ball bearings for ball screws 2a ... -bst series contact angle d 17 60mm b r dynamic equivalent ... 10 300 101 10 300 108 11 000 108 11 000 contact sealed type coa basic static rated load ... -1blxl 1 minimum allowable value for chamfer dimension r or r1 296 ... | |
