Pololu 20.4:1 Metal Gearmotor 25Dx50L mm HP 12V 500RPM

Artikelnummer: PO3203

This gearmotor consists of a high-power, 12 V brushed DC motor combined with a 20.4:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox. This gearmotor is also available with an integrated encoder PO4843.

Kategorie: 25D 12V


21,95 €

inkl. 19% USt.,

momentan nicht verfügbar


Beschreibung

Overview

These cylindrical brushed DC gearmotors are available in a wide range of gear ratios and with five different motors (two power levels of 6 V motors and three power levels of 12 V motors). The gearmotors all have the same 25 mm diameter case and 4 mm diameter gearbox output shaft, so it is generally easy to swap one version for another if your design requirements change (though the length of the gearbox tends to increase with the gear ratio). Each version is also optionally available with an integrated 48 CPR quadrature encoder. Please see the 25D metal gearmotor comparison table for detailed specifications of all our 25D metal gearmotors. This dynamically-sortable table can help you find the gearmotor that offers the best blend of speed, torque, and current-draw for your particular application.

Note: Stalling or overloading gearmotors can greatly decrease their lifetimes and even result in immediate damage. For these gearboxes, the recommended upper limit for instantaneous torque is 15 kg-cm (200 oz-in); we strongly advise keeping applied loads well under this limit. Stalls can also result in rapid (potentially on the order of a second) thermal damage to the motor windings and brushes, especially for the versions that use high-power (HP) motors; a general recommendation for brushed DC motor operation is 25% or less of the stall current.

Dimensions

  • Size: 25D x 50L mm
  • Weight: 85 g
  • Shaft diameter: 4 mm

General specifications

  • Gear ratio: 20.4:1
  • No-load speed @ 12V: 500 rpm
  • No-load current @ 12V: 300 mA
  • Stall current @ 12V: 5600 mA
  • Stall torque @ 12V: 85 oz·in
  • No-load speed @ 6V: 250 rpm
  • Stall current @ 6V: 2800 mA
  • Stall torque @ 6V: 42 oz·in
  • Motor type: 5.6A stall @ 12V (HP 12V)
  • Encoders?: N

Notes:

1 Length measurement is from gearbox face plate to back of motor (it does not include the output shaft or motor terminals). See dimension diagram for details.

2 This motor will run at 6 V but is intended for operation at 12 V.


Motor
type
With
Encoder

Without
Encoder
Size (mm)
(Motor+Encoder)

Gear
ratio
No-load
speed
@12V
(rpm)
No-load
current
@12V
(mA)
Stall
current
@12V
(mA)
Stall
torque
@12V
(oz·in)
No-load
speed
@6V
Stall
current
@6V
Stall
torque
@6V












1.1A stall
@12V
(LP 12V)
PO4890 PO3258 25D x (58+15)L 377.93:1 14 100 1100 320 7 550 160
PO4889 PO3257 25D x (56+15)L 226.76:1 23 100 1100 240 11 550 120
PO4888 PO3256 25D x (56+15)L 171.79:1 31 100 1100 180 15 550 90
PO4887 PO3255 25D x (54+15)L 98.78:1 55 100 1100 115 27 550 57
PO4886 PO3254 25D x (54+15)L 74.83:1 71 100 1100 85 35 550 42
PO4885 PO3253 25D x (52+15)L 46.85:1 110 100 1100 60 55 550 30
PO4884 PO3252 25D x (52+15)L 34.014:1 150 100 1100 43 75 550 21
PO4883 PO3251 25D x (50+15)L 20.4:1 260 100 1100 29 130 550 14
PO4882 PO3250 25D x (48+15)L 9.68:1 560 100 1100 15 280 550 7
PO4881 PO3249 25D x (48+15)L 4.4:1 1200 100 1100 8 600 550 4
PO4880 - 25D x 46L 1:1 5600 20 1110 2 2800 550 1








5.6A stall
@12V
(HP 12V)
PO4847 PO3207 25D x (54+15)L 98.78:1 100 300 5600 300 50 2800 150
PO4846 PO3206 25D x (54+15)L 74.83:1 130 300 5600 240 65 2800 120
PO4845 PO3205 25D x (52+15)L 46.85:1 210 300 5600 165 105 2800 80
PO4844 PO3204 25D x (52+15)L 34.014:1 290 300 5600 120 145 2800 60
PO4843 PO3203 25D x (50+15)L 20.4:1 500 300 5600 85 250 2800 42
PO4842 PO3202 25D x (48+15)L 9.68:1 1030 300 5600 44 515 2800 22
PO4841 PO3201 25D x (48+15)L 4.4:1 2250 300 5600 23 1125 2800 11
PO4840 - 25D x 46L 1:1 10200 150 5600 5.5 5100 2800 2.7











2.1A stall
@12V
(MP 12V)
PO4860 - 25D x 46L 1:1 7800 50 2100 2.7 3900 1050 1.3
PO4869 PO3233 25D x (56+15)L 226.76:1 33 200 2100 320 16 1050 160
PO4868 PO3232 25D x (56+15)L 171.79:1 43 200 2100 250 21 1050 125
PO4867 PO3231 25D x (54+15)L 98.78:1 76 200 2100 165 38 1050 82
PO4866 PO3230 25D x (54+15)L 74.83:1 100 200 2100 125 50 1050 62
PO4865 PO3229 25D x (52+15)L 46.85:1 160 200 2100 85 80 1050 42
PO4864 PO3228 25D x (52+15)L 34.014:1 220 200 2100 63 110 1050 31
PO4863 PO3227 25D x (50+15)L 20.4:1 370 200 2100 42 185 1050 21
PO4862 PO3226 25D x (48+15)L 9.68:1 770 200 2100 22 385 1050 11
PO4861 PO3225 25D x (48+15)L 4.4:1 1700 200 2100 11 850 1050 5

Dokumente

Dimension

Modifying the Wild Thumper to use motors with encoders

3D models of 25D mm gearmotors

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