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AAB 321 Series

Series 321 provides dynamic stopping or holding torque in a compact package.

  • Fixed air gap design
  • Optional AC Rectifiers - internal, or external in-line (availability depends on size)
  • Class 130(B) temperature rise with Class 180(H) mag wire
  • Optional “double D” friction discs are available in 3-7 lb-in dynamic and 3-15 lb-in holding brakes. DD shafts fit the brake directly without a brake hub, no shaft keyway cost and simplify assembly
  • UR and CUR recognized insulation system - File E-125303; and sizes 1.8 & 2.8 brakes and 48C & 56C motor frame brakes with internal power supply File E-71115
  • For applications requiring faster reaction time we also offer a quick set rectifier option

Stearns AAB 321-8 Series motor brake with fixed air gap design

AAB 321-8 Series

  • NEMA Frame: 48C
  • Torque (lb-ft): 1.5 - 8.3
  • Nm: 2 - 11
  • IP Rating: 42

View AAB 321-8 Series
Stearns AAB 322-8 Series motor brake with optional through shaft capability

AAB 322-8 Series

  • NEMA Frame: 48C
  • Torque (lb-ft): 1.5 - 8.3
  • Nm: 2 - 11
  • IP Rating: 54

View AAB 322-8 Series
Stearns AAB 321-9 Series motor brake with UR recognized insulation system

AAB 321-9 Series

  • NEMA Frame: 56C - 145TC
  • Torque (lb-ft): 3 - 25
  • Nm: 4 -34
  • IP Rating: 42

View AAB 321-9 Series
Stearns AAB 322-9 Series motor brake for mounting to NEMA 56C motors

AAB 322-9 Series

  • NEMA Frame: 56C - 145TC
  • Torque (lb-ft): 3 - 25
  • Nm: 4 -34
  • IP Rating: 54

View AAB 322-9 Series