Page 999 - Rollingbearings
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Steering encoder units
           Steering encoder                  The units reliably fulil the demands of
                                             industrial and off-highway vehicle
           units                               steer-by-wire systems and:

                                             • do not require any adjustment
           SKF steering encoder units (ig. 19, table 4)   • do not require relubrication during their
           are steering input devices for steer-by-wire   expected service life and are virtually
           systems that combine reliable encoder tech-  maintenance-free
           nology with the simplicity of plug-and-play   • are supplied ready-to-mount (connection
           component packaging.                to a steer-by-wire system is achieved by
            The detailed design of the units is based   plugs)
           on well-proven SKF technologies. The units
           consist of:

           • a sealed SKF Explorer deep groove ball
            bearing for long service life and reliable                                                    Fig. 19   17
            performance                                                           Steering encoder unit
           • bearing encoder technology for precise
            monitoring
           • a friction torque device, which provides
            feedback to the operator by providing
            ad equate resistance in the steering wheel
           • a mechanical interface for mounting
           • a shaft to connect the steering wheel









                                                                                                          Table 4
            Steering encoder units


                            11,4

                                                                                                          65


                 65              12  22
                                                                                  260
                                                                                               18

                       32   11,9
                                                                                                   3 × ∅4 3 × M6

            Designation                  AHE-5401D™   AHE-5701C™                   50,1
            Cable connector type         AMP Superseal  AMP Superseal
            Number of pulses per revolution, N  64    256
            Period accuracy              ± 8%         ± 8%
            Phase shift output signal    90°          90°
            Phase shift output signal tolerance  ± 30°  ± 30°
            Duty cycle                   50%          50%                                              120°
            Duty cycle tolerance         ± 10%        ± 10%
            Limiting speed               300 r/min    300 r/min
            Mass                         0,57 kg      0,57 kg                   2 × M6 ×12
                                                                                               57






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