Triple-Sealed Bearings for Ball Bearing Units

Transcription

1 Tiple-Seale eaings fo all eaing Units

2 Tiple-Seale eaings fo all eaing Units These eliable tiple-seale beaings ae ustpoof an watepoof. They ensue a longe beaing life even when expose to heavy aibone ust an splashes of foul wate. Dustpoofing effectiveness (1) Dustpoofing pefomance test An houglass-shape um containing ust (activate alumina) was otate at 50 pm. The main shaft was then otate at 1,750 pm (n value 51,000), while a loa of 25 kgf was applie to the test beaings mounte on both sies of the um. ecoe the beaings' nomal unning time befoe seizue ue to intenal ust contamination, an compae the esults. (ecause the test was pefome at oom tempeatue, the spee of the main shaft was set to a much highe ange than nomally allowable fo tiple-seale beaings in oe to simulate moe sevee opeating conitions.) (2) Dustpoofing test esults Dum impelle Test beaing Dum iving belt Test be Main shaft iving belt Reuce Dustpoofing pefomance test ig Seal type Manufactue Test beaing esciption oss-section of beaing No. of samples Aveage unning time U206D1LLJ 3 A U206D1LLJ h 1959h Oinay seal (ubbe seal + flinge) U206D h Note : The ustpoofing life of ou tiple-seale beaing (U206D1LLJ) is 2.8 times that of an equivalent beaing fom A, an is 5.6 times that of ou conventional beaing with a stana seal (U206D1). Resistance to muy wate eatues ette ustpoofing an watepoofing ensue a longe beaing life. e beaings featue a secue beaing seal with thee lips. This special seal offes eliable ustpoofing an watepoofing supeio to those of stana beaings use in beaing units. In aition, it ensues a longe sevice life, even when expose to heavy aibone ust an splashes of foul wate. Reuces maintenance cost. A beaing life longe than that of a stana beaing unit configuations means extene maintenance intevals, geatly euce maintenance costs (of inspection, elubication, eplacement, etc.), an incease availability of machiney. Deceases pice of the beaing unit an contibutes to moe compact machiney. The tiple-seale beaing unit eplaces conventional covee beaing units in cetain opeating conitions, geatly eceasing the cost of beaing units. In aition, if the cove is not equie, the machiney can be mae moe compact. Secue balle setscew The tiple-seale beaing is mounte on the shaft with balle setscew, which featues an embee ball in its tip. ompae with knule cup point o cup-point setscews, the balle setscew povies much geate esistance to loosening, as it oes not eaily loosen ue to vibation o impact. Intechangeability The tiple-seale beaing unit confoms to the JIS (Japanese Inustial Stana) fo U-type beaings. It is not only eay to use as a elubicable beaing, but it also eplaces the conventional beaing units of an othe manufactues. It theefoe seves as a eay eplacement fo existing beaing units. (1) Muy wate esistance test Two hune cubic centimetes of muy wate (Kanto loam type 8; wate content 1:10 w/w) was poue into a cylinical housing whee the beaing being teste was installe. The beaing an popelle in font of the beaing wee otate at 500 pm (n value 20,000) by a ive belt, with a vibation of 0.6 applie to the housing. ecoe the unning time of the beaing befoe the test equipment seize ue to contamination by muy wate, an then compae the esults. U208D1LLJ Dive pulley Main shaft (2) Muy wate esistance test esults an tightening toques Seal type Oinay seal (ubbe seal + flinge) Manufactue A D E Desciption of test beaing U208D1LLJ UEL208D1LLJ UEL208D1LLJ U208D1 U208D1 AEL208D1 oss-section of beaing Test beaing Housing Popelle Muy wate esistance test ig Aveage unning time 3016h (n=2) 51h 1437h 774h 513h 287h 40h Tightening toque 16.9N-cm 1.50lbf-inch. 18.8N-cm 1.66lbf-inch. 23.5N-cm 2.08lbf-inch. 58.8N-cm 5.20lbf-inch. 4.4N-cm 0.39lbf-inch. 26.3N-cm 2.32lbf-inch. 14.7N-cm 1.30lbf-inch. Muy wate Note : The life of the muy watepoofing of ou tiple-seale beaing (U208D1LLJ) is 59 times that of an equivalent beaing fom A, twice that of an equivalent beaing fom, an 5.9 times that of ou conventional beaing with a stana seal (U208D1). 1 2

3 e ball beaings fo all beaing unit Type U2...LLJ onstuction ylinical boe with setscew Tiple seal alle setscew o easy mounting of the beaing on the shaft. Tightens secuely an oes not eaily loosen. Oute ing all Sealing evice The ubbe seal exten to the oute cicumfeence the shiele plate fo bette sealing pefomance, an pevents contamination of the beaing by ust o foul wate. Seale plate alvanize steel plate constuction ensues impove coosion esistance. Optimal esign contibutes to enhance pessue esistance e beaing Allowable Opeating Tempeatue Range an Spee The tiple-seale beaing can be use in a tempeatue ange of -15 to 100. Allowable n value: 36,000 [n=beaing boe iamete (mm) x opeating spee n(min -1 )] Typical Applications e beaing units ae suitable fo machiney use in locations subjecte to splashes of foul wate an heavy ust, incluing machiney use in steel-making, casting, gabage isposal, watewoks an sewage teatment, ca washes, launy washing, foo pocessing, fish pocessing, constuction, tanspotation, agicultue, textiles, an yeing. Inne ing Tiple-lip Povies excellent ustpoofing an watepoofing, thus potecting against contamination by ust o foul wate. S1 S Shaft eaing 1 Nominal imensions basic loa atings mass ia. numbe ynamic static kg lb mm D s 2 inch. S S1 4 o 12 U201D1LLJ M /2 U D1LLJ No.10-32UN U202D1LLJ M /16 U D1LLJ No.10-32UN /8 U D1LLJ U203D1LLJ M /16 U D1LLJ No.10-32UN U204D1LLJ M /4 U D1LLJ No.10-32UN U205D1LLJ M /16 U D1LLJ /8 U D1LLJ No.10-32UN /16 U D1LLJ U D1LLJ U206D1LLJ M /16 U D1LLJ /8 U D1LLJ /4-28UN /16 U D1LLJ /4 U D1LLJ U207D1LLJ M /4 U D1LLJ /16 U D1LLJ /4-28UN /8 U D1LLJ /16 U D1LLJ Special Specifications 3 Sample application : A pillow unit (ight) an a squae flange unit (left) ae use in a conveyo unit opeating in an envionment with heavy aibone ust. The stana pelubication fo beaings in this seies is Li-mineal gease. ontact Engineeing fo optional beaings lubicate with Mole - Oil (special soli lubicant) o foo-gae gease, o fo beaings mae of stainless steel. 40 U208D1LLJ M /2 U D1LLJ /16-24UN /16 U D1LLJ U209D1LLJ M /8 U D1LLJ /16 U D1LLJ /16-24UN /4 U D1LLJ U210D1LLJ M /16 U D1LLJ /8 U D1LLJ /16-24UN /16 U D1LLJ U D1LLJ These numbes inicate elubicatable type. If maintenance fee type is neee, please oe without suffix "D1". 2 Minimum allowable imension fo chamfe imension. Note: 1) o shaft toleances, see the all eaing Units catalog. 2) The pecision of ball beaings is as specifie in JIS 1558 all beaings fo olling beaing units. 3) ontact Engineeing fo infomation on tapee boe ball beaings. 4

4 e ball beaings fo all beaing unit Type U2...LLJ ylinical boe with setscew e ball beaings fo all beaing unit Type REL2...LLJ ylinical boe with eccentic locking colla S1 S 1 S1 Shaft eaing 1 Nominal imensions basic loa atings mass ia. numbe mm D s 2 ynamic static kg lb S S1 4 o inch. 55 U211D1LLJ M U D1LLJ /16 U D1LLJ /16-24UN /8 U D1LLJ /16 U D1LLJ U212D1LLJ M /4 U D1LLJ /16 U D1LLJ /8-24UN /8 U D1LLJ /16 U D1LLJ U213D1LLJ M /2 U D1LLJ /8-24UN /16 U D1LLJ U214D1LLJ M /8 U D1LLJ /16 U D1LLJ /8-24UN /4 U D1LLJ U215D1LLJ M /16 U D1LLJ /8 U D1LLJ /8-24UN /16 U D1LLJ U D1LLJ U216D1LLJ M /16 U D1LLJ /8 U D1LLJ /8-24UN /16 U D1LLJ U217D1LLJ M /4 U D1LLJ /16 U D1LLJ /2-20UN /16 U D1LLJ U218D1LLJ M /2 U D1LLJ /2-20UN These numbes inicate elubicatable type. If maintenance fee type is neee, please oe without suffix "D1". 2 Minimum allowable imension fo chamfe imension. Note: 1) o shaft toleances, see the all eaing Units catalog. 2) The pecision of ball beaings is as specifie in JIS 1558 all beaings fo olling beaing units. 3) ontact Engineeing fo infomation on tapee boe ball beaings. S Shaft eaing 1 Nominal imensions basic loa atings mass ia. numbe ynamic static kg lb mm D 1 s 2 S S1 3 5 o inch 20 REL204D1LLJ M /4 REL D1LLJ /4-28UN REL205D1LLJ M /16 REL D1LLJ /8 REL D1LLJ /4-28UN /16 REL D1LLJ REL D1LLJ REL206D1LLJ M /16 REL D1LLJ /8 REL D1LLJ /16-24UN /16 REL D1LLJ /4 REL D1LLJ REL207D1LLJ M /4 REL D1LLJ /16 REL D1LLJ /8-24UN /8 REL D1LLJ /16 REL D1LLJ REL208D1LLJ M /2 REL D1LLJ /8-24UN /16 REL D1LLJ REL209D1LLJ M /8 REL D1LLJ /16 REL D1LLJ /8-24UN /4 REL D1LLJ REL210D1LLJ M /16 REL D1LLJ /8 REL D1LLJ /8-24UN /16 REL D1LLJ REL D1LLJ REL211D1LLJ M REL D1LLJ /16 REL D1LLJ /8-24UN /8 REL D1LLJ /16 REL D1LLJ REL212D1LLJ M /4 REL D1LLJ /16 REL D1LLJ /8-24UN /8 REL D1LLJ /16 REL D1LLJ REL213D1LLJ M /2 REL D1LLJ /8-24UN /16 REL D1LLJ REL214D1LLJ M /8 REL D1LLJ /16 REL D1LLJ /8-24UN /4 REL D1LLJ REL215D1LLJ M /16 REL D1LLJ /8 REL D1LLJ /8-24UN /16 REL D1LLJ REL D1LLJ These numbes inicate elubicatable type. If maintenance fee type is neee, please oe without suffix "D1". 2 Minimum allowable imension fo chamfe imension. Note: 1) o shaft toleances, see all eaing Units catalog. 2)UEL seies (UEL204~UEL215)ae also available with eccentic locking collas. 5 6

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