cation is part of the basic designation and is separated from the basic designation by an oblique stroke eg 6202/15875 (d = 15875 mm = 5/8 in) Diagram 1 Designations for SKF rolling bearings Examples Prefix Space or nonseparated Basic designation Space oblique stroke or hyphen Suffix R NU 2212 ECML W
7 Deep Groove Ball Bearings 3 5 1 Prefix R MRC inch series W Stainless 2 Seals Shields FF MRC shield designation SKF Z Metal backed one side of 16008 6008 6208 6208 ETN9 6308 6408 61809 61909 16009 6009 6209 6309 6409 61810 61910 16010 6010 6210 6310 6410 2283
R = Zöllig / Inch FR = Zöllig mit Flansch / Inch with Flange F = Metrisch mit Flansch / Metric with Flange Kein Präfix / No Prefix = Metrisch / Metric Referenz / Bearing W Kronenkäfig Geringes Gewicht geringe Reibung Crown Cage Light weight smooth low friction J Lappenkäfig Standardkäfig hohe Lebensdauer
R Flanged outer ring R2Z Shield of pressed sheet steel on both sides of the bearing and flanged outer ring VT378 Food grade grease with aluminium 20 000 13 000 0048 W 61810 72 12 12 500 11 600 500 19 000 12 000 01316 W 61910 80 16 19 000 16 600 710 18 000 11 000 02458 W 6010 90 20
Principal dimensions Basic load ratings Fatigue load limit Speed ratings Designations dynamic static Reference speed Limiting speed Bearing Snap ring d D B C C C0 Pu mm kN kN r/min
SKF > Bearings units and housings > Ball bearings > Deep groove ball bearings > Deep groove ball bearings single row
68 0285 20000 13000 0052 61910 50 72 12 146 118 05 19000 12000 014 16010 50 80 10 168 114 056 18000 11000 018 6010 50 80 16 229 16 071 18000 11000 0263 6210 M 50 90 20 371 232 098 15000 14000 0523 6210 50 90 20 371 232 098 15000 10000 0456 6310 M
W ShieldsZZ r r D d W r r Seals2RS D d W r r DEEP GROOVE BALL BEARINGS 600 SERIES Bearing number with shields open with seals Mass kg N 61908 ZZ 61909 ZZ 61910 ZZ 61911 ZZ 61912 ZZ 61913 ZZ 61914 ZZ 61915 ZZ 61916 ZZ 61900 2RS 61901 2RS 61902 2RS 61903 2RS 61904 2RS
MPa m 05 7 20 Thermal conductivity W/mK 3035 4045 Spec electric resistance Ωmm2/m 1017 1018 01 1 Properties of silicon nitride and ball bearing steel The designations given contain only the basic types not exact details such as precision matching preload etc GMN BARDEN FAFNIR FAG RHP SKF
The SKF brand still stands for the very best in rolling bearings but it now stands for much SKF The knowledge engineering company … −4 M n where NR = power loss W M = total frictional moment of the bearing Nmm n = operational speed r/min If the cooling factor (the heat to be removed from the bearing per
“R” SERIES INCH 12 Width of open bearing is narrower Some sizes available with snap ring (NR suffix) Contact factory Also available open (without shields or seals) Bore OD Width (ZZ or 2RS) Width (Open) Bearing Basic Load Rating Speed Rating Weight in in in in Number Pounds Grease Oil (lb) d D W W
MB C Tapered roller bearings single row double row page 329 320 302 322 303 313 323 R Thrust roller bearings single direction double direction page 511 igh stiff ness C ompensation of misalig nement Lo w friction Shock resistence Located bearing Nonlocated bearing Axial displacement posible in bearing
Mass Designation dimensions dynamic static load Reference Limiting limit speed speed d D B C C0 Pu mm kN kN r/min kg SKF Explorer bearing 302 7 676 68 0285 20 000 13 000 0052 61810 72 12 146 118 050 19 000 12 000 014 61910 80 10 168 114 056 18 000 11 000 018 16010
d 6 mm D 15 mm B 5 mm d2 ≈ 75 mm D2 ≈ 13 mm D3 17 mm C 12 mm r12 min 02 mm Abutment dimensions da min 73 mm da max 74 mm ra max 02 mm Calculation data Basic dynamic load rating C 0761 kN Basic static load rating C0 0265 kN Fatigue load limit Pu 0011 kN Reference
Popular bearing range P opul r be ring r nge SKF ball roller and plain bearings repre sent the latest state of the art In many cases The supplementary designations which are frequently used for SKF deep groove ball bearings are explained in the following Prefix W Bearing of stainless steel Suffixes A Modified
61910 2RS 1000910 2RS 50 72 12 14600 10400 5600 0140 61911 1000911 55 80 13 15900 11400 8200 9600 0190 61911 ZZ 1000911 ZZ 55 96 ISO Dimensions (mm) Bolt Size Bearing No Housing No Weight (kg) d(inch) d h a e b s1 s2 g w B n UCP201 12 302 127 95 38 13 19 14 62 31
