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To locate product CAD and Operator Manuals please search using the product Item Number.
Oriental Motor offers a wide range of motion control products to meet a wide range of applications, select the appropriate application type below.

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Ideal for bi-directional operation, KII Series Reversible motors offer higher strength gears that maximize motor performance and extend the rated life, with ease of use wiring and mounting, all at affordable prices.
- 25 W (1/30 HP)
- 3.15 in. (80 mm) Frame Size
- Rated Torque
- Round Shaft = 21 oz-in (150 mN·m)
- Parallel Shaft Gear = 6 ~ 141 lb-in (0.68 ~ 16 N·m)
- Lead Wire or Terminal Box Type
- Electromagnetic Brake available
Voltage (VAC)
- Single-Phase 110/115 VAC
- Single-Phase 220/230 VAC
Type
- Lead Wire
- Terminal Box
Electromagnetic Brake
- Equipped
- Not Equipped
Shaft/Gear Type
- Round Shaft (No Gearhead)
- Parallel Shaft Gearhead
Gear Ratio (X:1) (:1)
- 5
- 6
- 7.5
- 9
- 12.5
- 15
- 18
- 25
- 30
- 36
- 50
- 60
- 75
- 90
- 100
- 120
- 150
- 180
- 250
- 300
- 360
Item # |
Frame Size |
Output Power |
Voltage (VAC) |
Type |
Electromagnetic Brake |
Shaft/Gear Type |
Gear Ratio (X:1) |
Output Shaft Diameter |
Rated Torque |
Rated Speed (rpm) |
Web Price |
Add To Cart / Contact Sales |
---|---|---|---|---|---|---|---|---|---|---|---|---|
4RK25UA-5A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 5 :1 | - 5/8 in. | - 6.0 lb-in 0.68 N·m | - 360 | $154.00 |
Add To Cart
Request Quote |
4RK25UA-6A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 6 :1 | - 5/8 in. | - 7.1 lb-in 0.81 N·m | - 300 | $154.00 |
Add To Cart
Request Quote |
4RK25UA-7.5A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 7.5 :1 | - 5/8 in. | - 8.8 lb-in 1.0 N·m | - 240 | $154.00 |
Add To Cart
Request Quote |
4RK25UA-9A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 9 :1 | - 5/8 in. | - 10.6 lb-in 1.2 N·m | - 200 | $154.00 |
Add To Cart
Request Quote |
4RK25UA-12.5A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 12.5 :1 | - 5/8 in. | - 15.0 lb-in 1.7 N·m | - 144 | $154.00 |
Add To Cart
Request Quote |
4RK25UA-15A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 15 :1 | - 5/8 in. | - 17.7 lb-in 2.0 N·m | - 120 | $154.00 |
Add To Cart
Request Quote |
4RK25UA-18A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 18 :1 | - 5/8 in. | - 21 lb-in 2.4 N·m | - 100 | $154.00 |
Add To Cart
Request Quote |
4RK25UA-25A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 25 :1 | - 5/8 in. | - 30 lb-in 3.4 N·m | - 72 | $161.00 |
Add To Cart
Request Quote |
4RK25UA-30A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 30 :1 | - 5/8 in. | - 34 lb-in 3.9 N·m | - 60 | $161.00 |
Add To Cart
Request Quote |
4RK25UA-36A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 36 :1 | - 5/8 in. | - 40 lb-in 4.6 N·m | - 50 | $161.00 |
Add To Cart
Request Quote |
4RK25UA-50A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 50 :1 | - 5/8 in. | - 57 lb-in 6.5 N·m | - 36 | $169.00 |
Add To Cart
Request Quote |
4RK25UA-60A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 60 :1 | - 5/8 in. | - 68 lb-in 7.7 N·m | - 30 | $169.00 |
Add To Cart
Request Quote |
4RK25UA-75A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 75 :1 | - 5/8 in. | - 85 lb-in 9.7 N·m | - 24 | $169.00 |
Add To Cart
Request Quote |
4RK25UA-90A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 90 :1 | - 5/8 in. | - 102 lb-in 11.6 N·m | - 20 | $169.00 |
Add To Cart
Request Quote |
4RK25UA-100A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 100 :1 | - 5/8 in. | - 114 lb-in 12.9 N·m | - 18 | $169.00 |
Add To Cart
Request Quote |
4RK25UA-120A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 120 :1 | - 5/8 in. | - 137 lb-in 15.5 N·m | - 15 | $169.00 |
Add To Cart
Request Quote |
4RK25UA-150A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 150 :1 | - 5/8 in. | - 141 lb-in 16 N·m | - 12 | $169.00 |
Add To Cart
Request Quote |
4RK25UA-180A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 180 :1 | - 5/8 in. | - 141 lb-in 16 N·m | - 10 | $169.00 |
Add To Cart
Request Quote |
4RK25UA-250A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 250 :1 | - 5/8 in. | - 141 lb-in 16 N·m | - 7.2 | $204.00 |
Add To Cart
Request Quote |
4RK25UA-300A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 300 :1 | - 5/8 in. | - 141 lb-in 16 N·m | - 6 | $204.00 |
Add To Cart
Request Quote |
4RK25UA-360A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 110/115 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 360 :1 | - 5/8 in. | - 141 lb-in 16 N·m | - 5 | $204.00 |
Add To Cart
Request Quote |
4RK25UC-5A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 220/230 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 5 :1 | - 5/8 in. | - 6.0 lb-in 0.68 N·m | - 360 | $158.00 |
Add To Cart
Request Quote |
4RK25UC-6A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 220/230 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 6 :1 | - 5/8 in. | - 7.1 lb-in 0.81 N·m | - 300 | $158.00 |
Add To Cart
Request Quote |
4RK25UC-7.5A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 220/230 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 7.5 :1 | - 5/8 in. | - 8.8 lb-in 1.0 N·m | - 240 | $158.00 |
Add To Cart
Request Quote |
4RK25UC-9A | - 3.15 in80 mm | - 25 W (1/30 HP) | - Single-Phase 220/230 VAC | - Lead Wire | - Not Equipped | - Parallel Shaft Gearhead | - 9 :1 | - 5/8 in. | - 10.6 lb-in 1.2 N·m | - 200 | $158.00 |
Add To Cart
Request Quote |