PG28 Planetary Gearbox

PG28 Series

With a 28 mm diameter, the PG28 planetary gearbox offers a selection of ratios across several gear stages. The output shaft is supported by a ball bearing.

Product Highlights

Listed gear ratios: 5–1319:1
Gearbox diameter: 28 mm
Output bearing: ball bearing
Gearbox length: 25.9–52.1 mm

Customization Available

Custom shaft diameter, length and features
Mounting and mechanical integration
Gear ratios
Special lubricants

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Product Specifications

Model	PG28-5K	PG28-18.5K	PG28-26K	PG28-69K	PG28-96K	PG28-134K	PG28-255K	PG28-356K	PG28-696K	PG28-943K	PG28-1319K
Gearbox Type	Planetary Gear Motor	Planetary Gear Motor	Planetary Gear Motor	Planetary Gear Motor	Planetary Gear Motor	Planetary Gear Motor	Planetary Gear Motor	Planetary Gear Motor	Planetary Gear Motor	Planetary Gear Motor	Planetary Gear Motor
Gearbox Model	PG28-5K	PG28-18.5K	PG28-26K	PG28-69K	PG28-96K	PG28-134K	PG28-255K	PG28-356K	PG28-696K	PG28-943K	PG28-1319K
Gear Ratio (:1)	5	18.5	26	69	96	134	255	356	696	943	1319
Max. Input Speed (rpm)	—	—	—	—	—	—	—	—	—	—	—
Number Of Gear Stages	1	2	2	3	3	3	4	4	4	5	5
Gearbox Diameter (mm)	28	28	28	28	28	28	28	28	28	28	28
Gearbox Length (mm)	25.9	33.2	33.2	39.5	39.5	39.5	45.8	45.8	45.8	52.1	52.1
Max Continuous Torque (mN·m)	1961.33	4903.33	4903.33	9806.65	9806.65	9806.65	9806.65	9806.65	9806.65	9806.65	9806.65
Breaking Torque (mN·m)	5883.99	14709.98	14709.98	29419.95	29419.95	29419.95	29419.95	29419.95	29419.95	29419.95	29419.95
Gearbox Efficiency (%)	91	82	82	72	72	72	60	60	60	50	50
Gearbox Weight (kg)	0.0666	0.0848	0.0848	0.1029	0.1029	0.1029	0.1216	0.1216	0.1216	0.139	0.139
Shaft Diameter (mm)	6	6	6	6	6	6	6	6	6	6	6
Pinion Hole Diameter (mm)	φ2.3 / φ3.17	φ2.3 / φ3.17	φ2.3 / φ3.17	φ2.3 / φ3.17	φ2.3 / φ3.17	φ2.3 / φ3.17	φ2.3 / φ3.17	φ2.3 / φ3.17	φ2.3 / φ3.17	φ2.3 / φ3.17	φ2.3 / φ3.17
Operating Temperature Range (°C)	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65
Gearbox Housing Material	Powder Metallurgy (Fe)	Powder Metallurgy (Fe)	Powder Metallurgy (Fe)	Powder Metallurgy (Fe)	Powder Metallurgy (Fe)	Powder Metallurgy (Fe)	Powder Metallurgy (Fe)	Powder Metallurgy (Fe)	Powder Metallurgy (Fe)	Powder Metallurgy (Fe)	Powder Metallurgy (Fe)
Gear Material	Powder Metallurgy (Fe) / Plastics	Powder Metallurgy (Fe) / Plastics	Powder Metallurgy (Fe) / Plastics	Powder Metallurgy (Fe) / Plastics	Powder Metallurgy (Fe) / Plastics	Powder Metallurgy (Fe) / Plastics	Powder Metallurgy (Fe) / Plastics	Powder Metallurgy (Fe) / Plastics	Powder Metallurgy (Fe) / Plastics	Powder Metallurgy (Fe) / Plastics	Powder Metallurgy (Fe) / Plastics
Gear Design	Helical Gear / Spur Gear	Helical Gear / Spur Gear	Helical Gear / Spur Gear	Helical Gear / Spur Gear	Helical Gear / Spur Gear	Helical Gear / Spur Gear	Helical Gear / Spur Gear	Helical Gear / Spur Gear	Helical Gear / Spur Gear	Helical Gear / Spur Gear	Helical Gear / Spur Gear
Output Shaft Bearing	Ball Bearing	Ball Bearing	Ball Bearing	Ball Bearing	Ball Bearing	Ball Bearing	Ball Bearing	Ball Bearing	Ball Bearing	Ball Bearing	Ball Bearing
Lubricant In Gearbox	Graphene oil	Graphene oil	Graphene oil	Graphene oil	Graphene oil	Graphene oil	Graphene oil	Graphene oil	Graphene oil	Graphene oil	Graphene oil
Axial Play (mm)	≤ 0.2	≤ 0.2	≤ 0.2	≤ 0.2	≤ 0.2	≤ 0.2	≤ 0.2	≤ 0.2	≤ 0.2	≤ 0.2	≤ 0.2
Radial Play (mm)	≤ 0.1	≤ 0.1	≤ 0.1	≤ 0.1	≤ 0.1	≤ 0.1	≤ 0.1	≤ 0.1	≤ 0.1	≤ 0.1	≤ 0.1
Backlash (°)	≤ 1.5	≤ 1.5	≤ 1.5	≤ 1.5	≤ 1.5	≤ 1.5	≤ 1.5	≤ 1.5	≤ 1.5	≤ 1.5	≤ 1.5
Gear Module (M)	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5

Product downloads

Specification	3D CAD