dc electric motor bearings 22212 22212CA 22212C  spherical roller bearing 22206 ntn bearing 22244

1.Description:

Spherical roller bearings are double row, self-retaining units comprising solid outer rings with a concave raceway, solid inner rings and barrel rollers with cages. The inner rings with cylindrical or tapered bores.

Types EA, C, CD, CA, these are designed for high load capacity, are available. Types EA, C, and CD have pressed steel cages; and type CA has machined brass cages. Type EA has especially high load capacity, features low torque, and has a high-strength cage.

2.Features:
1) Spherical roller bearings are principally provided with two rows of symmetrical spherical rollers and a common sphere raceway in out ring, the two inner ring raceways are included at an angle to the bearing axia

2) The bearings have good self-aligning ability and can operate when the shaft deflection under load or the shaft deflection under load or the shaft misaligning in mounting, and their permissible aligning angle is 1 to 2.5 degree

3) This type of bearings has heavy load carrying capacity and anti-impact ability, in addition to radial loads, they also can carry axial loads in two directions

4)In general, this type of bearings permits a low limiting speed.

3.spherical roller bearing suffixes:
CA: Integral brass cage, double row symmetrical rollers,inner ring ride
MA: Integral brass cage, double row symmetrical rollers ,outer ring ride
MB: Two piece brass cage,double row asymmetrical rollers, inner ring ride
CC: Two piece steel cage, double row symmetrical rollers,inner ring ride
CTN1: Double row symmetrical rollers ,nylon cage
K: Tapered bore bearing, the taper is 1:12
K30: Tapered bore bearing,the taper is 1:30
W33: With lubrication groove in outer ring,with three oil holes
C2/C3/C4: Internal clearance series: C2,C0,C3, and C4