Page 992 - Rollingbearings

17 Sensor bearing units
Lubrication Motor encoder units for
signals, it is possible to obtain 256 electrical
events per revolution, which translates to an extreme operating
angular resolution of 1,4° (ig. 4, page 989). SKF motor encoder units are: conditions
SKF motor encoder units provide accurate
and reliable signals for effective motor con- • illed, under clean conditions, with a Magnetic sensors have temperature and
trol and are 100% tested for period accuracy, high-quality grease (table 2, page 245) motor power limits For applications where
duty cycle and phase shift during that is suitable for the most common magnetic sensors are not practical,
manufacture operating conditions of electric motors high-performance inductive technology can
• virtually maintenance-free be used instead Inductive sensors use coils
to sense the rotation of a specially designed
Cable connection The grease life in the bearing can be calcu- induction tooth ring For additional informa-
lated according to the method described tion about motor encoder units for extreme
SKF motor encoder units are available as under Grease life for capped bearings, operating conditions, contact SKF
standard with one of the following: page 246

17 • a free cable end with an output signal con-
sisting of two square waves, designation
sufix 008A (ig. 5)
• an AMP Superseal™ connector (AMP Nos
282106-1 and 282404-1), designation
sufix 108A (ig. 6)

Standard cable lengths are listed in the
product table, page 1002 For alternative
connectors or cable lengths, contact SKF

Fig. 5 Fig. 6

Free cable end, designation sufix 008A AMP Superseal™ connector, designation
(including dongle, except for unit sufix 108A
BMD-6206)

Supply Ground
Supply Ground Signal B Signal A
Signal B Signal A

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