Catalog: BEAREE
Company/Brand: NTN Corporation Japan
material used and application for shaft in BEAREE by NTN Corporation Japan
6 design and selection for bearing applications 6-2 estimation of wear the life of an ... of motion surface roughness of mating material and operating temperature generally the ... of wear is given by the following formula rkpvt where r the amount of wear mm k ... time h surface roughness of the mating material influences the wear of the ntn ... moreover ntn recommends the hardness of shaft to be hrc 22 or higher since it is ... possible to reduce the wear when the shaft is harder for the following operating condition ... load sliding velocity pv value mating material torque tolerances type of motion and ... ntn bearee 6-1 selection of bearing material pv value when selecting the bearing ... material examine the operating temperature ...

design and selection for bearing applications 6-3 fits and clearance plain bearings ... into a housing the minimum clearance for operation varies by the size of shaft ... widely the thermal expansion of bearing material should be taken into consideration ... is required although recommended shaft and bore diameters and mounted clearance ... the mounted clearance may increase for soft material housings such as aluminum ... and plastics or thin wall housing also it ... fit might be lost when the bearing is used under low temperature Ącalculation of ... m-liner bearing the calculation step for standard temperature above 25°c and ... below calculation step of clearance for bearee plain bearing standard ... temperature 20 25°c dimension of shaft and housing is fixed define bearing ...

design and selection for bearing applications 1 calculation of clearance for standard ... minimum cmin d25l sh where sh maximum shaft diameter sl minimum shaft diameter hh ... of bearing note 1 the minimum clearance for ntn engineering plastic bearing is ... required 2 7/1000 of shaft diameter to reduce heat generation when ... used with no lubrication 2 shrink ratio by ... rar1010 made of bearee fl 3000 assume shaft and housing bore dimensions follow ntn ... recommendation 0 shaft 10 h6 -0.009 therefore sh 10 sl 9. ... 0.072 0.07 2 calculation of clearance for high temperature th°c 1 housing bore ... 1 1 th 25 minimum hhl hl 1 1 th 25 2 shaft diameter maximum shh minimum shl sh 1 ... of linear expansion of housing for th°c 2 coefficient of linear expansion ...

design and selection for bearing applications 3 calculation of clearance for low ... 1 11 tl 25 minimum hll hl 1 11 tl 25 2 shaft diameter maximum slh sh 1 minimum sll ... in figure 19 after centering bearing and be sure that the housing chamfer is ... use an adhesive to fasten the bearing for low temperature application because the ... of linear expansion of housing for tl°c 22 coefficient of linear ... expansion of shaft for tl°c 33 coefficient of linear ... expansion of bearing for tl°c press ram arbor bearing housing ... figure 19 assembling method b notice for handling 1 bearee fl could be deformed ... or scratched by a shock load etc and bearee pi could be cracked or chipped 2 ... the surface roughness of mating material greatly affects bearing life ntn ...