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PRODUCT

Self-aligning 1200 series ball bearings have two rows of balls, a common sphere raceway in the outer ring and two deep uninterrupted raceway grooves in the inner ring. This 1200 series self-aligning type of ball bearing is recommended when alignment of the shaft and housing is difficult and the shaft may flex.


1200 Series Self-aligning Ball Bearing have two kinds of structure: cylindrical hole and conical hole. The material of the cage is steel plate, synthetic resin, etc. It is characterized by the outer ring raceway into a spherical shape, with automatic self-aligning, can compensate for the misalignment and shaft deflection caused by Error, but the relative inclination of its inner and outer rings must not exceed 3 degrees.


Self-aligning ball bearings of the 1200 series own smaller dimensions, comparing to self-aligning ball bearings 1300 series in same inner diameter, whereof results a lower weight. The self-aligning ball bearings are also available with tapered bore (for fixing the adapter sleeve). They are open, can thus be regreased easily and used in case of a high rotational speed.

The designation suffixes used to identify certain features of 1200 series self-aligning ball bearings are explained in the following.

C3 Radial internal clearance greater than Normal

E Optimized internal design

K Tapered bore, taper 1:12

M Machined brass cage, ball centred

TN Injection moulded snap-type cage of polyamide 66, ball centred

TN9 Injection moulded snap-type cage of glass fibre reinforced p

 

 Applications

This 1200 types of ball bearings generally used in precision instrument, low noise machine,automobile,motorcycle,and the general machinery and so on, it is the most widely used bearing type in the machinery industry.


Bearing ModelDimensions(mm)Basic Load Rating(KN)Speed ratings(r/min)Weight(kg)
dDBrsminDyn.CStat.CoGreaseOil
1200103090.65.51.1921000240000.033
12011232100.65.61.2718000220000.04
12021535110.67.451.7516000190000.049
12031740120.67.92.0114000170000.072
120420471419.92.6113000150000.116
1205255215112.13.311000130000.138
1206306216115.64.659200110000.217
12073572171.115.85.1800094000.317
12084080181.119.36.55710084000.414
12094585191.121.97.35640075000.457
12105090201.122.78.1580068000.515
121155100211.526.810530062000.692
121260110221.53011.5490058000.879
121365120231.53112.5450053001.13
121470125241.534.513.8420049001.24
121575130251.53915.7390046001.33
1216801402624017370043001.65
1217851502824920.8350041002.06
1218901603025723.5330038002.51
121995170322.16427.1310036003.1
1220100180342.16929.7290034003.7
1221105190362.174.532.5280033004.34
1222110200382.180.535.5260031005.15


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