EP4 Series Track Drive Planetary Gearbox

EP4 Series Track Drive Planetary Gearbox

EP4 Series Track Drive Planetary Gearbox Features

The EP4 series track drives by WLY Transmission Co.,Ltd. enjoy the following features:
1. Output torque Range: 1000-220000 N.m
2. Gear Ratios: i=5.3-365
3. Support: rotating housing flange to fit tracks
4. Applicable motors: axial piston hydraulic motors, Hydraulic orbit motors
5. Hydraulic motor options: Pressure relief valve, Overcenter valve on request
5. Brake: hydraulic released parking brake on request

Why Choose EP4 Series Track Drive Planetary Gearbox

EP4 series track drive planetary gearboxes are special gear reducers for tracked vehicles and earthmoving machines. This series of reduction gearboxes feature heavy-duty housings, short overall lengths and high radial and axial load capacities. In addition, our gearboxes are equipped with an integral multi-disc parking brake designed for direct mounting of hydraulic insert motors. Careful selection of materials and design allows our gearboxes to be used even in the harshest environments. As a mature planetary gearbox factory with more than 15 years of experience, we manufacture this range of gearboxes as the perfect transmission solution for crawler chassis, drilling, crushing, screening and piling machines.

Specifications of EP4 Series Track Drive Planetary Gearbox

Track drives Type	Max. torque N.m	Range of ratios ( i )	Max. Input speed (rpm)	Braking torque (N.m)
EP400 L1	1300	6.09	1000	120-250
EP401 L1	2800	6.09	1000	250-350
EP402 L2	5000	12.4-25.8	3000	-----
EP403 L2	6000	15.4-40	3000	220-310
EP405 L2	10000	20-53	3000	220-310
EP406 L2,L3	17000	26-140	3000	220-450
EP406A L3	24000	90-140	3000	300
EP407 L3	36000	66-140	3000	550
EP410 L3	50000	67-150	3000	800
EP413 L3	60000	94-170	3000	750
EP414 L3	80000	76-186	3000	1025
EP415 L3	110000	95-215	3000	1100
EP416 L3	160000	160-250	3000	1100
EP417 L3	220000	95-365	3000	1400

Track drives	Dimensions
	D1	D2	D3	D4	D5	D6	D7	D8	L1	L2	L3
EP400 L1	195	175	155	160	180	200	M10×1.5n=8	M10×1.5n=8	21	40	104
EP401 L1	230	200	180	190	210	230	M10×1.5n=8	M10×1.5n=8	21	40	130
EP402 L2	190.5	165.1	133.3	200	241.3	279.4	5/8”-11 UNC n=8	1/2”-13 UNC n=9	10.2	105.9	145
EP403 L2	260	230	190	200	240	280	M16×2n=8	M20×1.5n=8	34	72	160
EP405 L2	260	230	190	220	260	290	M16×2n=12	M16×2n=16	18	72	166
EP406 L2,L3	320	290	250	280	305	330	M20×2.5n=16	M16×2n=16	30	82	230
EP406AL3	320	290	250	280	305	330	M20×2.5n=16	M16×2n=16	30	82	240
EP407 L3	350	310	270	320	350	380	M20×2.5n=16	M16×1.5n=20	30	90	269
EP410 L3	350	310	270	350	400	430	M20×1.5n=20	M20×1.5n=16	40	82	313
EP413 L3	410	370	330	370	410	450	M20×1.5n=20	M20×2.5n=20	25	114	318
EP414 L3	480	430	380	430	480	520	M24×3n=20	M24×3n=20	22	148	338
EP415 L3	500	460	420	460	500	540	M24×3n=24	M18×1.5n=36	22	165	361
EP416 L3	560	510	450	535	600	650	M24×2n=30	M24×2n=30	30	168	380
EP417 L3	650	600	460	610	680	735	M24×2n=30	M24×2n=30	45	170	400

 

Installation of Track Drive Planetary Gearbox

Observing a few rules for correct installation is essential to the reliable and proper operation of the gearbox or gear motor.

The rules set out here are intended as a preliminary guide to selecting a gearbox or gear motor. For effective and proper installation, follow the instructions given in the installation, and use the maintenance manual for the gearbox available from our sales department.

Following is a brief outline of installation rules:

a) Fastening:

Place gearbox on a surface providing adequate rigidity. Mating surfaces should be machined and flat.

Mating surfaces must be within definite geometric tolerances. This is especially true of

flange-mounted gearboxes with splined hollow shafts.

In applications that involve high radial loads at the output end, flange mounting is recommended for some gearbox sizes as this mounting makes use of the double pilot diameters provided in these gearboxes.

Make sure the gearbox is suitable for the required mounting position.

Use screws of resistance class 8.8 and over to secure the gearbox. Torque up screws to the figures indicated in the relevant tables.

With transmitted output torque greater than or equal to 70% of the indicated M2max torque, and with frequent movement reversals, use screws with minimum resistance 10.9.

Some gearbox sizes can be fastened using either screws or pins. pin seated in the frame of the gearboxes be at least 1.5 times pin diameter.

b) Connections

Secure the connection parts to gearbox input and output. Do not tap them with hammers or similar tools.

To insert these parts, use the service screws and threaded holes provided on the shafts. Be sure to clean off

any grease or protect from the shafts before fitting any connection parts.

Fitting hydraulic motors.

Be careful the O ring between motor flange and gearbox input flange when assembling. Install the hydraulic motor before filling lube oil into the gearbox.

Connecting the hydraulic brake.

The hydraulic circuit should be such to ensure that brake is released instantly before gearbox starts and applied after gearbox has stopped. Check that pressure in the hydraulic line for brake release is at zero whenever the gearbox is stopped.

Direction of rotation

Motors are connected to the suitable electric or hydraulic circuit according to their direction of rotation.

When performing these connections, bear in mind that all gearboxes, whether in the in-line or right-angle design, have the same direction of rotation both at input and output. For more details of the connection of electric and hydraulic motors, see relevant sections in this catalog.

c) Painting

Painted with antioxidant water primer in the color red. Mating surfaces are not painted. The final coat is to be applied by the customer. Before painting, protect the seal rings installed on the shafts. Contact with paint may deteriorate the seals with subsequent oil leakage.

d) Lubrication

Before start-up, fill the gearbox with the recommended lube oil up to the correct level. The level is checked through the suitable plug or sight glass provided on each gearbox, depending on the designated mounting position.

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