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G51A

G51A_Pittman_Gearbox
G51A Gear
The G51A is an economical 51 mm offset spur gearbox suitable for lower torque applications. The wide range of sintered steel gears combinations especially complement brushed motors when speed reduction in required. The G51A is also available in high torque or wide faced gears for increased output loads.

Features:
  • Maximum Load torque up to 1.24 Nm in the standard model
  • Load increased to 2.12 Nm in the high torque and up to 3.53 in wide face versions
  • Standard bronze bearings
Optional:
  • Special lubrication for extreme conditions
  • Ball bearings for high radial loads
  • Delrin gears for noise reduction

Compatible Motors:
DC030C
DC040B
DC054B
EC057C

PLEASE NOTE:  Gearboxes are configured to be integrated directly with PITTMAN motors. Gearboxes are not sold separately.

  • Specifications +



    G51A Standard Specifications

    *Please note ratio 11.5:1 is not available with the DC054B Brushed Motor
    GEAR DATA UNITS G51A
    5.9:1    		 G51A
    11.5:1    *    		 G51A
    19.7:1    		 G51A
    38.3:1    		 G51A
    65.5:1    		 G51A
    127.8:1
    Maximum Load Nm 1.236 1.236 1.236 1.236 1.236 1.236
    oz-in 175 175 175 175 175 175
    Weight (Mass) g 167.3 167.3 177.5 177.5 187.7 187.7
    oz 5.9 2.9 6.26 6.26 6.62 6.62
    Length (LG) mm 34.9 34.9 34.9 34.9 34.9 34.9
    in 1.373 1.373 1.373 1.373 1.373 1.373
    Stages - 1 1 1 1 1 1
    Ratio - 5.9:1 11.5:1 19.7:1 38.3:1 65.5:1 127.8:1
    Efficiency - 0.81 0.81 0.73 0.73 0.66 0.66
    Shaft Rotation - CW CW CCW CCW CW CW
    GEAR DATA UNITS G51A
    218.4:1    		 G51A
    425.9:1    		 G51A
    728.1:1    		 G51A
    1419.8:1    		 G51A
    2426.9:1    		 G51A
    4732.5:1
    Maximum Load Nm 1.236 1.236 1.236 1.236 1.236 1.236
    oz-in 175 175 175 175 175 175
    Weight (Mass) g 197.9 197.9 208.1 208.1 231.9 231.9
    oz 6.98 6.98 7.34 7.34 8.18 8.18
    Length (LG) mm 34.9 34.9 34.9 34.9 38.8 38.8
    in 1.373 1.373 1.373 1.373 1.528 1.528
    Stages - 1 1 1 1 2 2
    Ratio - 218.4:1 425.9:1 728.1:1 1419.8:1 2426.9:1 4732.5:1
    Efficiency - 0.59 0.59 0.53 0.53 0.48 0.48
    Shaft Rotation - CCW CCW CW CW CCW CCW

    G51A High Torque Specifications
    GEAR DATA UNITS G51A-HT
    5.9:1    		 G51A-HT
    11.5:1    		 G51A-HT
    19.7:1    		 G51A-HT
    38.3:1    		 G51A-HT
    65.5:1    		 G51A-HT
    127.8:1
    Maximum Load Nm 2.118 2.118 2.118 2.118 2.118 2.118
    oz-in 300 300 300 300 300 300
    Weight (Mass) g 167.30 167.3 177.5 177.5 187.7 187.7
    oz 5.90 5.9 6.26 6.26 6.62 6.62
    Length (LG) mm 34.9 34.9 34.9 34.9 34.9 34.9
    in 1.373 1.373 1.373 1.373 1.373 1.373
    Stages - 1 1 1 1 1 1
    Ratio - 5.9:1 11.5:1 19.7:1 38.3:1 65.5:1 127.8:1
    Efficiency - 0.81 0.81 0.73 0.73 0.66 0.66
    Shaft Rotation - CW CW CCW CCW CW CW
    GEAR DATA UNITS G51A-HT
    218.4:1    		 G51A-HT
    425.9:1    		 G51A-HT
    728.1:1    		 G51A-HT
    1419.8:1    		 G51A-HT
    2426.9:1    		 G51A-HT
    4732.5:1
    Maximum Load Nm 2.118 2.118 2.118 2.118 2.118 2.118
    oz-in 300 300 300 300 300 300
    Weight (Mass) g 197.9 197.9 208.1 208.1 231.9 231.9
    oz 6.98 6.98 7.34 7.34 8.18 8.18
    Length (LG) mm 34.9 34.9 34.9 34.9 38.8 38.8
    in 1.373 1.373 1.373 1.373 1.528 1.528
    Stages - 1 1 1 1 2 2
    Ratio - 218.4:1 425.9:1 728.1:1 1419.8:1 2426.9:1 4732.5:1
    Efficiency - 0.59 0.59 0.53 0.53 0.48 0.48
    Shaft Rotation - CCW CCW CW CW CCW CCW

    G51A Wide Face Specifications
    GEAR DATA UNITS G51A-WF
    19.7:1    		 G51A-WF
    38.3:1    		 G51A-WF
    65.5:1    		 G51A-WF
    127.8:1
    Maximum Load Nm 3.53 3.53 3.53 3.53
    oz-in 500 500 500 500
    Weight (Mass) g 184.8 184.8 195 195
    oz 6.52 6.52 6.88 6.88
    Length (LG) mm 34.9 34.9 34.9 34.9
    in 1.373 1.373 1.373 1.373
    Stages - 1 1 1 1
    Ratio - 19.7:1 38.3:1 65.5:1 127.8:1
    Efficiency - 0.73 0.73 0.66 0.66
    Shaft Rotation - CCW CCW CW CW
    GEAR DATA UNITS G51A-WF
    218.4:1    		 G51A-WF
    425.9:1    		 G51A-WF
    728.1:1    		 G51A-WF
    1419.8:1
    Maximum Load Nm 3.53 3.53 3.53 3.53
    oz-in 500 500 500 500
    Weight (Mass) g 205.3 205.3 229.1 229.1
    oz 7.24 7.24 8.08 8.08
    Length (LG) mm 34.9 34.9 38.8 38.8
    in 1.373 1.373 1.53 1.53
    Stages - 1 1 2 2
    Ratio - 218.4:1 425.9:1 728.1:1 1419.8:1
    Efficiency - 0.59 0.59 0.53 0.53
    Shaft Rotation - CCW CCW CW CW


  • Dimensional Drawings +





    G51A Gearmotor (Standard, High Torque, Wide Face)
    Combined Length
    Motor Length LGMmm
    Stage 1 2
    DC030C-1 88.6 92.5
    DC030C-2 100.6 104.5
    DC030C-3 112.6 116.5

     
    G51A Gearmotor (Standard, High Torque, Wide Face)
    Combined Length
    Motor Length LGMmm
    Stage 1 2
    DC040B-1 78.8 82.7
    DC040B-2 88.3 92.2
    DC040B-3 93.4 97.3
    DC040B-4 101.0 104.9
    DC040B-5 109.9 113.8
    DC040B-6 117.5 121.4

     
    G51A Gearmotor (Standard, High Torque, Wide Face)
    Combined Length
    Motor Length LGM mm
    Stage 1 2
    DC054B-1 109.9 113.8
    DC054B-2 116.3 120.2
    DC054B-3 129.0 132.9
    DC054B-4 138.5 142.4
    DC054B-5 148.0 151.9
    DC054B-6 160.7 164.6
    DC054B-7 179.8 183.7

    G51A Gearmotor (Standard, High Torque, Wide Face)
    Combined Length
    Motor Length LGMmm
    Stage 1 2
    EC057C-1 73.8 77.7
    EC057C-2 85.2 89.1
    EC057C-3 97.9 101.8
    EC057C-4 110.6 114.5