1.Introduction of Spherical roller bearing

a. Types:238series,248series,239series,,230series,240series,231 series ,241series,

              222 series ,232series,etc.

b. Material:Gcr15-China,(AISI)52100-USA,(DIN)100CR6-Germany

c. Retainer:J,K,M,MA,MB,k,

d. Clearance:CN,C2,C3,C4,C5

e. Precision level:ABEC-1,ABEC-3,ABEC-5

f. Main application: spherical roller bearings is mainly used for medium and large motors,

generators, internal combustion engines, gas turbines, machine tool spindles,  deceleration

devices, and material handling machinery and various types of industrial machinery.