Catalog: Sealed Self-Aligning Roller Bearings - WA type | |
| for new t echnology network r sealed self-aligning roller bearings wa type patent pending corporation | |
| ntn sealed self-aligning roller bearings wa type lengthens operating time between maintenance inspections in contaminated environments general the high load capacity of self-aligning roller bearings and their easy adaptability to a variety of applications has led to increased use in nearly every industry compact sealed self-aligning roller bearings have been developed by ntn specifically to address the need for longer operating times between periodic maintenance inspections and relubrication patent pending special characteristics highly efficient at preventing infiltration of contaminants the ... | |
| bearing diagram cross-sectional diagram of plummer block structure 1 bore diameter and outer diameter dimensions are the same as series 222 width dimensions are somewhat wider dimensional accuracy and running accuracy are jis class 0 2 internal dimensions are the same as series 222b and therefore basic rated loads are also the same 3 outer rings are provided with oil grooves and oil holes standard 4 seals are designed to maintain an ideal degree of contact pressure with the outer surface of the inner ring 5 the bearings are packed 25 35 of inside free space of bearing with lithium mineral grease ... | |
| sealed self-aligning roller bearings wa type dimension table brrddd cylindrical bore tapered bore bearing no tapered bore1 wa22212bllsk wa22213bllsk wa22214bllsk wa22215bllsk wa22216bllsk wa22217bllsk wa22218bllsk wa22219bllsk wa22220bllsk wa22222bllsk wa22224bllsk wa22226bllsk wa22228bllsk wa22230bllsk wa22232bllsk boundary dimensions dynamic 2 basic load ratings static dynamic cor 147 179 201 223 239 272 345 390 415 570 700 790 975 1 160 1 290 11 14 15 16 18 21 26 30 32 42 49 58 70 79 88 cr 700 600 700 900 300 000 200 000 000 000 500 000 000 000 500 static cor 15 18 20 22 24 27 35 39 42 58 71 ... | |
| ra ra da da equivalent radial bearing load dynamic pr xfr yfa fa fa e fr fr exyxy 1 y1 0.67 y2 equivalent radial bearing load static por fr yofa for values e y1 y2 and yo see table below abutment and fillet dimensions mm da da ras constant axial load coefficient mass ref kg min 68.5 73.5 78.5 83.5 90 95 100 107 112 122 132 144 154 164 174 max 74.5 80 84 89.5 94.5 101 107 114 119 133 147 154 168 185 197 max 101.5 111.5 116.5 121.5 130 140 150 158 168 188 203 216 236 256 276 max 1.5 1.5 1.5 1.5 2 2 2 2 2 2 2 2.5 2.5 2.5 2.5 e 0.27 0.28 0.26 0.24 0.26 0.26 0.26 0.26 0.26 0.27 0.27 0.28 0.28 0.27 ... | |
| performance test data 1 heat run test test conditions bearing :wa22216bllsk load lubrication :radial load 980n {100kgf :grease alvania no 3 test results temperature rise bearing temperature room temperature °c 100 injected grease volume :30 of inside free space of bearing 100 of inside free space of bearing room temperature :25°c operating time :until temperature rise stabilizes 80 60 40 20 0 500 1 000 1 250 rotational speed 1 500 rpm with grease volume 100 of inside free space of bearing with grease volume 30 of inside free space of bearing 2 dust contamination resistance test test conditions ... | |
| handling precautions 1 because the internal radial clearance of sealed self-aligning roller bearings with tapered bores cannot be measured with a thickness gauge please monitor clearances after assembly using the values for axial direction runout as shown in table 1 2 in cases where two fixing rings are used with a plummer block please use one fixing ring on each side of the bearing 3 during assembly if misalignment exceeding the allowable misalignment angle of 0.5° is applied to the bearing rollers may come in direct contact with seals causing seal deformation furthermore if additional force is ... | |
