ETC EVO Spherical Roller Bearing
- 40
- 02 Jun 2015
ETC EVO Spherical Roller Bearing
Spherical roller bearings are available as double-row, combination radial and trust bearings. They use a spherical or crowned roller as the rolling element. The race in the outer ring is spherical in shape, which allows for some misalignment of shock loads, but have limited speed capabilities.
Therefore, spherical roller bearings are suitable for low/medium speed applications which involve heavy or impact loading.
They come with cylindrical or tapered bores can be supplied assemblies as well as withdrawal sleeves.
These bearings call K type, which differ in internal structure, bearings with a tapered bore can be fit removed easily using an adapter assembly or withdrawal sleeve.
The rate of the taper is identical among all bearing series:
240 and 241 series: 1:30 (Supplementary code “K30”)
Others: 1:12 (Supplementary code “K”)
ETC EVO mainly offers wide inner ring series as following:
- 22xxx Series CAKW33 Series/ KMBW33 Series/ CAW33 Series/ MBW33 Series
- 23xxx Series CAKW33 Series/ KMBW33 Series/ CAW33 Series/ MBW33 Series
- 24xxx Series CAKW33 Series/ KMBW33 Series/ CAW33 Series/ MBW33 Series
Designs and Types:
CTN1: Nylon retainer
- C: Stamped steel retainer and strengthened symmetric rollers; offers considerably higher load ratings than conventional designs for a broad range of applications and long service life.
- CA: Alternative design of C design; Precision-machined one-piece brass retainer and strengthened symmetric rollers; used to exchange with C design, especially for large size.
- MB: Two-piece precision-machined brass retainer and strengthened symmetric rollers; equivalent to C design in load capacity.
- EM: Third generation design. The bearing contact is completely optimized and has improved stress distribution; offer longer service life.
- W33: There are lubricating groove and three lubricating holes on the outside ring for fitting together with the body structure so as to realize the bearing lubrication from outside.
Clearance:
- C2: less than nominal clearance
- C0: nominal clearance, omitted in designation
- C3: larger clearance than C0
- C4: larger clearance than C3
- C5: larger clearance than C4
Working temperature: S0, S1, S2, S3
