1.There are mainly non-standard bearing. And TIMKEN in America products many non-standard tapered roller bearings.
2.It is also called pressure bearing, and the bearing capacity is bigger than other type's.
3.It is with precision. P5 is used widely.
4.It is without the seal.
5.There are double row bearing and single row bearing, but the single row bearing is used widely.
6.The material of bearing retainer is steel.