Irrigation Gearbox

Irrigation Wheel Drive Gearbox (Irrigation Final-Drive Gearbox) AEP-1 Series

Model Numbers:
AEP-1-50 =(50:1 ratio, standard)
AEP-1V-52 =(52:1 ratio, replaces Valley drives)

1. Torque capacity: 69,000 lb.in (7800 N.m)
2. Ratio: 50:1, 52:1 (others available).
3. Universal mount bolt pattern, allows usage on virtually all pivots.
4. High-strength steel worm, gear, and output shaft.
5. Shipped with oil.
6. Includes special external crop guard seals.
7. High-strength cast iron box and end caps.
8. Includes serrated shank carriage bolts with wheel nuts.
9. Full cycle expansion chamber; bellows-type expansion diaphragm.
10. Tapered roller bearings.
11. Input shaft seals fitted with triple lip for maximum protection.
12. Worm and gear are either precision finished for higher efficiency rating.
13. Totally enclosed light weight easy-to-access top junction box.
14. Weight: 104 lbs (47.5 Kg).
15. Oil capacity: 1.0 gal (3.9L).

Irrigation Center-Drive Gearbox SYF-1 Series

SYF-1-20=87rpm(20:1 ratio)
SYF-1-30=58rpm(30:1 ratio)
SYF-1-40=43rpm(40:1 ratio)
SYF-1-50=35rpm(50:1 ratio)
SYF-1-58=30rpm(58:1 ratio)
SYF-1-60=29rpm(60:1 ratio)
(When input speed is 1740 rpm)

1. Torque capacity: 4,500 lb. in (510 N.m).
2. Ratio: 20:1, 30:1, 40:1, 50:1, 58:1, 60:1 (others available).
3. Accepts NEMA 56-C face motors with 0.625” shafts, 2” long with 0.19” key slot.
4. Multiple mount bolt patterns 5”×6”, 3.38” ×6.38” fit all pivots.
5. High-strength aluminum bronze worm gear.
6. Includes an easy-to-install shock-absorbing motor to worm gearbox coupler.
7. Both output shafts have 1/4” ×1-1/4” keyways.
8. Shipped with oil.
9. Includes special external crop guard seals.
10. Precision die-cast tempered aluminum housing.
11. Weight: 15.9 lbs (7.2 kg).
12. Oil capacity: 0.21 gal (0.8 L)

Irrigation Center-Drive Gearbox SYF-2M Series

SYF-2M-20=87rpm(20:1 ratio,1-1/2 HP motor)
SYF-2M-30=58rpm(30:1 ratio, 1-1/2 HP motor)
SYF-2M-40=43rpm(40:1 ratio, 1 HP motor)
SYF-2M-50=35rpm(50:1 ratio, 1 HP motor)
SYF-2M-58=30rpm(58:1 ratio, 1 HP motor)
SYF-2M-60=29rpm(60:1 ratio, 1 HP motor)
(When input speed is 1740 rpm)

1. Ratio: 20:1, 30:1, 40:1, 50:1, 58:1, 60:1 (athers available).
2. Using a self-locking taper shaft connection (motor to worm shaft) allows on-site replacement without
removing the worm shaft or disconnecting the load. This ensures precision alignment and eliminates fretting
to expedite motor removal.
3. Mount bolt patterns 5” × 6”.
4. High-strength aluminum bronze worm gear.
5. Shipped with oil.
6. Includes special external crop guard seals.
7. Precision die-cast tempered aluminum housing.
8. All critical electrical connections are encapsulated to resist penetration of moisture.
9. Specially designed for rugged irrigation duty.
10. 460/380 volt, 3 phase, 60/50 HZ dual voltage.
11. Thermally protected; automatic reset.
12. Internal fin cooled.
13. Totally enclosed light weight easy-to-access top junction box.
14. Class F-rated insulation.
15. Minimal AMP draw: full load current at rated voltage, 2.3 AMPS.
16. Weight: 43.2 lbs (19.6 kg).
17. Oil capacity: 0.21 gal (0.8 L)

Irrigation Center-Drive Gearbox SYF-3 Series

SYF-3M-20=87rpm(20:1 ratio, 1-1/2 HP motor)
SYF-3M-30=58rpm(30:1 ratio, 1HP motor)
SYF-3M-40-4P=43rpm(40:1 ratio, 3/4 HP and 4 poles motor)
SYF-3M-40-6P=28rpm(40:1 ratio, 1/2 HP and 6 poles motor)
SYF-3-20=87rpm(20:1 ratio, without motor)
SYF-3-30=58rpm(30:1 ratio, without motor)
SYF-3-40=43rpm(40:1 ratio, without motor)
(When input speed is 1740 rpm)

1. Torque capacity: 10,000 lb. in (1130 N.m).
2. Ratio: 20:1, 30:1, 40:1 (others available).
3. Mount bolt patterns 5” × 6”.
4. High-strength alloy steel gear: all gear is heat treated.
5. Shipped with oil.
6. Includes an easy-to-install shock-absorbing motor to the gearbox coupler.
7. Includes special external crop guard seals.
8. Precision die-cast tempered aluminum housing.
7. Accepts NEMA 56-C face motors with 0.625” shafts, 2” long with 0.19” key slot.
9. Weight: 35 lbs (16 Kg).
10. Oil capacity: 0.53 gal (2.0 L)
11. Efficiency 90%.

Irrigation Center-Drive Gearbox SYF-3M Series

SYF-3M-20=87rpm(20:1 ratio, 1-1/2 HP motor)
SYF-3M-30=58rpm(30:1 ratio, 1HP motor)
SYF-3M-40-4P=43rpm(40:1 ratio, 3/4 HP and 4 poles motor)
SYF-3M-40-6P=28rpm(40:1 ratio, 1/2 HP and 6 poles motor)
SYF-3-20=87rpm(20:1 ratio, without motor)
SYF-3-30=58rpm(30:1 ratio, without motor)
SYF-3-40=43rpm(40:1 ratio, without motor)
(When input speed is 1740 rpm)

1. Ratio: 20:1, 30:1, 40:1 (others available).
2. Mount bolt patterns 5” × 6”.
3. High-strength alloy steel gear all gear are heat treated.
4. Shipped with oil.
5. Includes special external crop guard seals.
6. Precision die cast tempered aluminum housing.
7. All critical electrical connections are encapsulated to resist penetration of moisture.
8. Specially designed for rugged irrigation duty.
9. 460/380 volt, 3 phase, 60/50 HZ dual voltage.
10. Thermally protected; automatic reset.
11. Internal fin cooled.
12. Totally enclosed weight easy to access top junction box.
13. Class F-rated insulation.
14. Minimal AMP draw: full load current at rated voltage, 2.3 AMPS.
15. Weight: 60 lbs (27 Kg).
16. Oil capacity: 0.53 gal (2.0 L)
17. Efficiency 90%

Irrigation Center-Drive Gearbox SYF-4 Series

SYF-4M=4.75rpm
(254:1 ratio, 1/8 HP 48V DC motor)
(When input speed is 1200 rpm)
SYF-4=6.8rpm (254:1 ratio, without motors)
(Accepts NEMA 48-C face motors with 1/2” shafts 1-9/16” long)
(When input speed is 1740 rpm)

1. Ratio: 254:1 (others available).
2. Torque capacity: 3,500 lb. in (395 N.m).
3. Mount bolt patterns 3.375” ×4.5”.
4. High-strength alloy steel gear, all gear are heat treated.
5. Shipped with oil.
6. Includes special external crop guard seals.
7. Precision die cast tempered aluminum housing.
8. Includes easy installing shock absorbing motor to gearbox coupler.
9. Accepts NEMA 48-C face motors with 0.5” shafts, 1-9/16” long.
10. Weight: 15.5 lbs (7.1 Kg).
11. Oil capacity: 0.13 gal (0.5 L)
12. Efficiency 90%

Irrigation Center-Drive Gearbox SYF-4M Series

SYF-4M=4.75rpm
(254:1 ratio, 1/8 HP 48V DC motor)
(When input speed is 1200 rpm)
SYF-4=6.8rpm (254:1 ratio, without motors)
(Accepts NEMA 48-C face motors with 1/2” shafts 1-9/16” long)
(When input speed is 1740 rpm)

1. Ratio: 254:1 (others available).
2. Mount bolt patterns 3.375” × 4.5”.
3. High-strength alloy steel gear, all gear are heat treated.
4. Shipped with oil.
5. Includes special external crop guard seals.
6. Precision die cast tempered aluminum housing.
7. All critical electrical connections are encapsulated to resist penetration of moisture.
8. Specially designed for rugged irrigation duty.
9. Permanent magnet DC motor, 1/8 HP, 48Volt.
10. Class F-rated insulation.
11. Minimal AMP draw: full load current at rated voltage, 2.45 AMPS.
12. Weight: 21.5 lbs (9.8 Kg).
13. Oil capacity: 0.13 gal (0.5 L)
14. Efficiency 90%