The roller of tapered roller bearings is cylindrical or cylindrical body? Why roller drawing method of drawing section for the rectangular (here I want to add: I have seen the N version, some of the paintings is rectangular, trapezoidal and some paintings, 2 versions, a few of my book is that the proportion is A/2 the roller projection) it indicates that the real roller should be a cylinder or a cylindrical body roller is... What master?
Roller tapered roller bearing is a conical body, sometimes drawing simplified painted section cylinder, not misleading (a type of list), is also permitted.-- -- -- -- --
Cylindrical rollers are used only when the raceway is a cylinder.Mechanical drawing clearly stipulates the simplified drawing method of tapered roller bearings. Rollers are drawn into cylinders.
Tapered roller bearing roller must have certain taper roller and raceway, inside and outside the vertebral vertebral vertex vertex must be of the same point and in the shaft center line (similar to bevel), or when the roller bearing motion reducer and raceway for angular velocity, linear velocity will be the same for different sliding friction and rolling bearing becomes sliding bearing.
