Structure of the combination tables

These tables show which combinations of gear units and single-speed AC (brake)motors are geometrically possible. For pole-changing AC (brake)motors, contact SEW-EURODRIVE.

The output speed na, the maximum output torque Mamax, the permitted overhung load FRa at maximum output torque (valid for foot-mounted gear units with solid shaft), the torsion angle φ (/R), and the gear unit ratio are specified for input speed ne = 1400 min-1 for each combination.

Only if a value is specified for the torsion angle φ(/R), is the gear unit with this gear unit ratio available with "reduced backlash (/R)" option. The numerical value specifies the rotational clearance of the reduced backlash version in angular minutes ' (tolerance: ± 2 angular minutes).

[1]

Stages of the gear ratios (1-, 2-, or 3-stage or, for compound gear units, 2-2-, 3-3-, 2-3-, or 3-2-stage).

  • Helical gear units (R) – with the exception of single-stage RX gear units – and parallel-shaft helical gear units (F) as well as SPIROPLAN® W..9 gear units are 2- or 3-stage gear units depending on the gear unit ratio.
  • For compound gear units, the stages of the primary gear unit (= small gear unit) are indicated on the right, the stages of the output end gear unit (= large gear unit) are indicated on the left. The primary gear unit of the compound gear unit is always a helical gear unit.

[2]

Output speed of the gear unit

[3]

Maximum output torque of the gear unit

[4]

Permitted overhung load at maximum output torque Mamax

  • The value refers to the foot-mounted gear unit design with solid shaft.

[5]

  • No specification (-): The reduced backlash (/R) option is not possible for this i.
  • Specification of a numerical value: Reduced backlash option is possible. The numerical value specifies the rotational clearance of the reduced backlash version in angular minutes with a tolerance of ± 2 angular minutes.

[6]

Gear unit ratio

  • A value marked with * indicates a finite gear unit ratio.

[7]

  • No data: Combination with the motor in the header is not possible
  • ✓ = Combination with the motor in the header is possible

The following gear units have stages that depend on the gear unit ratio:

  • R.. helical gear units: 2- or 3-stage
  • F.. parallel-shaft helical gear units: 2- or 3-stage
  • W..9 SPIROPLAN® right-angle gear units: 2- or 3-stage

The following gear units have a defined stage:

  • RX.. helical gear units: 1-stage
  • K7.. helical-bevel gear units: 3-stage
  • S.. helical-worm gear units: 2-stage
  • W..0 SPIROPLAN® right-angle gear units 1-stage
  • W..7 SPIROPLAN® right-angle gear units 2-stage