Cylindical Rolle Beaings Seies NSK has developed a highe load-caying capacity pessed cage with low noise and supeio cage stength. Ou seies is a standad cylindical olle beaing that facilitates intechangeability acoss the globe, while offeing bette pefomance fo evey application.
Cylindical Rolle Beaing Seies A newly developed standad beaing Rolle guide face NSK has been supplying a standad cage fo smalle-sized, single ow cylindical olle beaings as indicated hee: Standad beaings type (Pessed steel cage with flaps) High load-caying E type ET type (Polyamide esin cage) In the 21st centuy, you can now take advantage of NSK s newly developed cylindical olle beaing, the seies, which combines the stengths and technologies of pevious cages into a one-piece steel cage. NSK has achieved a new design involving even newe concepts, while maintaining excellence in function and sevice life. Ou seies can meet you high load-caying capacity needs fo the new ea. Design concept of ou newly developed standad beaing the seies Seies Beaing Intechange Guide Intenal design compaison of the seies and seies Seies (Conventional type) Oute ing Seies (Newly developed type) Rolles Cage Inne ing Seies Seies High load ating Geate numbe of lage olles Highe limiting speed Maximum igidity and low noise Optimum and well-balanced design 1 2
High-Stength Cage Low Noise Results of FEM analysis Noise measuement test esults Seies Conventional Seies 8 Measuing conditions Beaing numbe: NU38 Method: JIS B1548 Radial load: 392 N Speed: 1 2 to 1 8 min 1 Noise level, db 7 Majo competito Micophone position and measuing load 45 1 Micophone diaphagm 6 1 2 1 5 1 8 Speed, min 1 Measuing load: 392 N The seies is 3 to 7 db quiete than that of ou majo competitos. Tests confim that the stess levels of NSK s seies cages ae 4% lowe than that of cages in conventional seies. Highe Limiting Speed Highe Load Rating Cage stength test esults Compaison of limiting speed Compaison of dynamic load ating C Majo competito -1-2 -3-4 -5-6 -7-8 1 2 3 4 5 6 7 8-1 -2-3 -4-5 -6-7 -8 1 6 1 7 1 8 Numbe of oscillations until beakage No beakage and test discontinued Test conditions Test beaing: NU38 Oscillating angle: 3 Radial load: 7.4 kn Lubication method: oil bath 3 Oil level Limiting speed, min 1 Limiting speed, min 1 18 15 12 9 6 3 18 15 12 9 6 3 Gease Lubication Beaing numbe Oil Lubication Beaing numbe Basic dynamic load ating, N 18 15 12 9 6 3 Beaing numbe NSK s seies showed geate cage stength pefomance than that of ou majo competitos. The limiting speed of the seies is 1-25% highe than that of conventional seies. The load ating of the seies is 1-6% highe than that of conventional seies. 3 4
Seies Beaing Table NU NJ NUP B a a 1 1 1 b D d F w F w F w D a d b d b d c D a d b d a d d seies 35-311 and 25-213 of NU, NJ, NUP. Bounday Dimensions Basic Load Ratings Limiting Speeds d D B (mm) 1 F w C [N] C o C [kgf] C o [min 1 ] Gease Oil min min 25 52 15 1.6 31.5 29 3 27 7 2 99 2 83 12 14 62 17 1.1 1.1 34 41 5 37 5 4 25 3 8 1 12 3 62 16 1.6 37.5 39 37 5 4 3 8 9 5 12 72 19 1.1 1.1 4.5 53 5 5 4 5 1 8 5 1 35 72 17 1.1.6 44 5 5 5 5 15 5 1 8 5 1 8 21 1.5 1.1 46.2 66 5 65 5 6 8 6 65 7 5 9 5 4 8 18 1.1 1.1 49.5 55 5 55 5 5 7 5 65 7 5 9 9 23 1.5 1.5 52 83 81 5 8 5 8 3 6 7 8 45 85 19 1.1 1.1 54.5 63 66 5 6 45 6 8 6 7 8 1 25 1.5 1.5 58.5 97 5 98 5 9 95 1 6 7 5 5 9 2 1.1 1.1 59.5 69 76 5 7 5 7 8 6 3 7 5 11 27 2 2 65 11 113 11 2 11 5 5 6 55 1 21 1.5 1.1 66 86 5 98 5 8 8 1 1 5 6 7 1 12 29 2 2 7.5 137 143 14 14 6 4 5 5 6 6 11 22 1.5 1.5 72 97 5 17 9 95 1 9 5 3 6 3 65 12 23 1.5 1.5 78.5 18 119 11 12 1 4 8 5 6 Beaing Numbes Abutment and Fillet Dimensions Pemissible NU NJ NUP d a d b d c (mm) d d D a a b Axial Movement min min max min min max max max (mm) NU25 NJ NUP 3 29 3 34 37 47 1.6 1.2 NU35 NJ NUP 31.5 31.5 32 37 4 55.5 1 1 1.2 NU26 NJ NUP 35 34 36 4 44 57 1.6 1.2 NU36 NJ NUP 36.5 36.5 39 44 48 65.5 1 1 1.2 NU27 NJ NUP 41.5 39 42 46 5 65.5 1.6 1.2 NU37 NJ NUP 43 41.5 44 48 53 72 1.5 1 1.2 NU28 NJ NUP 46.5 46.5 48 52 56 73.5 1 1 1.2 NU38 NJ NUP 48 48 5 55 6 82 1.5 1.5 1.2 NU29 NJ NUP 51.5 51.5 52 57 61 78.5 1 1 1.2 NU39 NJ NUP 53 53 56 6 66 92 1.5 1.5 1.4 NU21 NJ NUP 56.5 56.5 57 62 67 83.5 1 1 1.7 NU31 NJ NUP 59 59 63 67 73 11 2 2 1.4 NU211 NJ NUP 63 61.5 64 68 73 92 1.5 1 1.2 NU311 NJ NUP 64 64 68 72 8 111 2 2 1.4 NU212 NJ NUP 68 68 7 75 8 12 1.5 1.5 1.2 NU213 NJ NUP 73 73 76 81 87 112 1.5 1.5 1.4 5 6
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Newak tel: 1636-65-123 NSK PRECISION UK LTD. Newak tel: 1636-65-123 NSK STEERING SYSTEMS EUROPE LTD. Maidenhead tel: 1628-59-8 Noth and South Ameica NSK AMERICAS, INC. (AMERICAN HEADQUARTERS) Ann Abo tel: 734-913-75 Agentina: NSK ARGENTINA SRL Buenos Aies tel: 11-474-51 Bazil: NSK BRASIL LTDA. www.b.nsk.com São Paulo tel: 11-3269-4786 Canada: NSK CANADA INC. www.ca.nsk.com Toonto tel: 95-89-74 Mexico: NSK RODAMIENTOS MEXICANA, S.A. DE C.V. www.mx.nsk.com Mexico City tel: 55-539-4312 United States of Ameica: NSK CORPORATION www.us.nsk.com Ann Abo tel: 734-913-75 NSK AMERICAN TECHNOLOGY CENTER Ann Abo tel: 734-913-75 NSK PRECISION AMERICA, INC. www.npa.nsk.com Fanklin tel: 317-738-5 NSK STEERING SYSTEMS AMERICA, INC. www.nssa.nsk.com Bennington tel: 82-442-5448 NSK LATIN AMERICA, INC. www.la.nsk.com Miami tel: 35-477-65 NSK Ltd. has a basic policy not to expot any poducts o technology designated as contolled items by expot-elated laws. hen expoting the poducts in this bochue, the laws of the expoting county must be obseved. Specifications ae subject to change without notice and without any obligation on the pat of the manufactue. Evey cae has been taken to ensue the accuacy of the data contained in this bochue, but no liability can be accepted fo any loss o damage suffeed though eos o omissions. e will gatefully acknowledge any additions o coections. Fo moe infomation about NSK poducts, please contact: Pinted on 1% ecycled pape. CAT. No.E1238c 27 C-11 Pinted in Japan NSK Ltd. 21