Cooling Tower Gearbox – Energy-Saving & Noise Reduction

RD-TYQ Gearbox
RD-TDQ Gearbox
RD-TCJ Gearbox
RD-PVD Belt Pulley Reducer

RD-TYQ Gearbox – Ultra-Low Noise, High Efficiency & Low Maintenance

A blue RD-TYQ gearbox is placed on a flat surface.

RD-TYQ gearbox is a single-stage external gear reducer directly connected to the motor. The gear parameters are optimized and the gear grinding process makes its operating noise extremely low, with a transmission efficiency of over 95%. It comes in two models: RD-TYQ132 and RD-TYQ136.

Features

Reliable operation, low operating cost.
Low noise, high efficiency.
Easy installation and maintenance.

Structure & Components

A blue structural diagram of an RD-TYQ gearbox

The structure and composition of the product are shown in the figure.

Terminal pad
Oil seal cover
Tapered roller bearing
Framework oil seal
Bearing cover
Driving gear
Driven gear
Thrust ball bearing
Deep groove ball bearing
Framework oil seal
Coupling sleeve
Breathable cap
Sealed cap
Oil scale
Housing
Window cover
Bearing seat
Oil drain plug
Bearing cover
Main shaft
Flat key
Flat nut
Cap nut

Technical Data

The dimensions the RD-TYQ gearbox are displayed from 3 different views.

Table 1: External and Installation Dimensions of RD-TYQ Standard Series Gearbox
Size Sequence Model	RD-TYQ132 New	RD-TYQ160 New
A	126	152
B	108	125
C	130	124
D	130 customizable	170 customizable
E	115 customizable	140 customizable
F	260 customizable	320 customizable
G	330 customizable	380 customizable
H	φ300	φ350
I	φ265	φ300
J	φ230	φ250
K	M14	M16
L	60	65
M	φ55	φ60
N	16	18

Table 2: RD-TYQ Standard Series Gearbox List
Specification Model	Matching Motor Specification	Noise Test Value at 3 m (dB)	Motor Weight (kg)	Gearbox Weight (kg)	Reducer Weight (kg)
RD-TYQ132-4-210	V1 4KW-6(132M1)	60	64	65	129
RD-TYQ132-4-250	V1 4KW-6(132M1)	61	64	65	129
RD-TYQ132-4-330	V1 4KW-4(112M)(+)	62	46	65	111
RD-TYQ132-4-370	V1 4KW-4(112M)(+)	63	46	65	111
RD-TYQ132-5.5-210	V1 5.5KW-6(132M2)	60	75	65	140
RD-TYQ132-5.5-250	V1 5.5KW-6(132M2)	61	75	65	140
RD-TYQ132-5.5-330	V1 5.5KW-4(132S1)	62	59	65	124
RD-TYQ132-5.5-370	V1 5.5KW-4(132S1)	63	59	65	124
RD-TYQ132-7.5-330	V1 7.5KW-4(132M)	62	72.5	65	137.5
RD-TYQ132-7.5-370	V1 7.5KW-4(132M)	63	72.5	65	137.5
RD-TYQ160-11-210	V1 11KW-6(160L)	61	132	108	240
RD-TYQ160-11-320	V1 11KW-4(160M)	63	116	108	224
RD-TYQ160-15-210	V1 15KW-6(180L)	61	190	108	298
RD-TYQ160-15-320	V1 15KW-4(160L)	62	144	108	252
RD-TYQ160-18.5-320	V1 18.5KW-4(180M)	63	153	108	261
RD-TYQ160-22-320	V1 22KW-4(180L)	63	170	108	278

Application

For power 4–22 KW civil low-noise cooling towers and air coolers.

For civil low-noise cooling towers

RD-TDQ Gearbox – Power Equipment for Small & Medium-Sized Industrial Cooling Towers

A blue RD-TDQ gearbox is placed on a flat surface.

RD-TDQ gearbox is a single-stage external gear reducer directly connected to the motor. The gear parameters are optimized and the gear grinding process makes its operating noise extremely low, with a transmission efficiency of over 95%. It is a power equipment for small and medium-sized industrial cooling towers, featuring easy to install, simple to maintain, and particularly durable. It comes in the following types: RD-TDQ132, RD-TDQ160, RD-TDQ200, and RD-TDQ225.

Features

Compact structure, strong overload capacity.
Lightweight and small size.
Easy installation and maintenance.

Structure & Components

The structural diagram of a blue RD-TDQ gearbox

The structure and components of the product are shown in the figure.

Connecting gear sleeve
Housing
Lock plate
Grooved nut
Bearing seat
Inner gear ring
Planetary gear
Oil seal cover
Oil scale
Oil scale tube
Sun gear
Tapered roller bearing
Planetary carrier
Cylindrical roller bearing
Tapered roller bearing
Framework oil seal
Main shaft
Flat key
Flat nut
Cap nut

Technical Data

The dimensions of RD-TDQ gearbox are displayed from 3 different views.

Table 3: External and Installation Dimensions of RD-TDQ Standard Series Gearbox
Dimensions Model	RD-TDQ132	RD-TDQ160	RD-TDQ200	RD-TDQ225
A	380	430	490	540
B	340	390	450	500
C	100	100	130	130
D	60	60	80	80
E	14	16	16	16
F	8/10	12/14	14/16	18
G	230	250	340	350
H	17.3/22.3	24.3/27.8	27.8/31.8	34.4
I	28/38	42/48	48/55	60
J	19	19	19	19
K	300	350	400	450
L	265	300	365	400
M	235	272	365	371
N	300	358	405	460
0	209	211	229	249
P	115(1:10)	115(1:10)	115(1:10)	135(1:20)
Q	55	60	70	80
R	31.8	34.4	39.9	45.4
S	16	18	20	22

Table 4: RD-TDQ Standard Series Gearbox List
Specification Model	Matching Motor Specification	Noise Test Value at 3 m (dB)	Motor Weight (kg)	Gearbox Weight (kg)	Reducer Weight (kg)
RD-TDQ132-4-165	V1 4KW-6(132M1)	67	64	55	119
RD-TDQ132-4-210	V1 4KW-4(112M)(+)	68	46	55	101
RD-TDQ132-4-250	V1 4KW-4(112M)(+)	68	46	55	101
RD-TDQ132-4-320	V1 4KW-4(112M)(+)	68	46	55	101
RD-TDQ132-5.5-165	V1 5.5KW-6(132M2)	67	75	55	130
RD-TDQ132-5.5-210	V1 5.5KW-4(132S1)	68	59	55	114
RD-TDQ132-5.5-250	V1 5.5KW-4(132S1)	68	59	55	114
RD-TDQ132-5.5-320	V1 5.5KW-4(132S1)	68	59	55	114
RD-TDQ132-7.5-210	V1 7.5KW-4(132M)	68	72.5	55	127.5
RD-TDQ132-7.5-250	V1 7.5KW-4(132M)	68	72.5	55	127.5
RD-TDQ132-7.5-320	V1 7.5KW-4(132M)	68	81	55	136
RD-TDQ160-11-165	V1 11KW-6(160L)	68	147	83	230
RD-TDQ160-11-210	V1 11KW-4(160M)	70	107	83	190
RD-TDQ160-11-250	V1 11KW-4(160M	70	107	83	190
RD-TDQ160-11-320	V1 11KW-4(160M)	70	107	83	190
RD-TDQ160-15-165	V1 15KW-6(180L)	70	190	83	273
RD-TDQ160-15-210	V1 15KW-4(160L)	70	144	83	227
RD-TDQ160-15-250	V1 15KW-4(160L)	70	144	83	227
RD-TDQ160-18.5-210	V1 18.5KW-4(180M)	70	153	83	236
RD-TDQ160-18.5-250	V1 18.5KW-4(180M)	70	153	83	236
RD-TDQ160-22-210	V1 22KW-4(180L)	70	170	83	253
RD-TDQ160-22-250	V1 22KW-4(180L)	68	170	83	253
RD-TDQ200-15-125	V1 15KW-6(180L)	73	144	148	292
RD-TDQ200-18.5-165	V1 18.5KW-4(180M)	73	153	148	301
RD-TDQ200-18.5-210	V1 18.5KW-4(180M)	73	153	148	301
RD-TDQ200-22-165	V1 22KW-4(180L)	73	170	148	318
RD-TDQ200-22-210	V1 22KW-4(180L)	73	170	148	318
RD-TDQ200-22-250	V1 22KW-4(180L)	73	170	148	318
RD-TDQ200-30-165	V1 30KW-4(200L)	73	228	148	376
RD-TDQ200-30-210	V1 30KW-4(200L)	73	228	148	376
RD-TDQ225-37-165	V1 37KW-4(225S)	73	270	148	418
RD-TDQ225-37-210	V1 37KW-4(225S)	73	270	148	418
RD-TDQ225-45-165	V1 45KW-4(225M)	73	280	215	495
RD-TDQ225-45-210	V1 45KW-4(225M)	73	280	215	495

Application

For power 4–45 KW, 100 T – 1000 T small to medium-sized industrial cooling towers and air coolers.

For small to medium-sized industrial cooling towers and air coolers

RD-TCJ Gearbox – Power System for Large Industrial Cooling Towers

A blue RD-TCJ gearbox is placed on a flat surface.

RD-TCJ gearbox uses spiral bevel gear transmission to ensure that the motor center and gearbox gear center are perfectly aligned through flange coupling. The motor directly drives the gearbox's driving gear without the need for a drive shaft to transmit torque. The motor is a cooling tower-specific motor with protection class IP55 and insulation class F. The product has a compact structure and comes in the following types: RD-TCJ132, RD-TCJ180, RD-TCJ225, RD-TCJ280 and RD-TCJ315.

Features

Fundamentally solve the problem of drive shaft failure.
No need to align the drive shaft, making installation very convenient.
Reduce energy consumption by 5%–10% and vibration by 50%.

Structure & Components

A structural diagram of a blue RD-TCJ gearbox

The structure and components of the product are shown in the figure.

Cylindrical roller bearing
Sealing cover
Main shaft
Housing
Basin shaped gear
Tapered roller bearing
Thrust ball bearing
Round nut
Sealed cap
Lower bearing seat
Driving bevel gear
Cylindrical roller bearing
Terminal pad
Tapered roller bearing
Disc nut
Oil seal
Oil seal cover
Box cover
Upper bearing seat
Oil seal
Flat Key
Hub pressure plate

Technical Data

The dimensions of RD-TCJ gearbox are displayed from 4 different views.

Table 5: External and Installation Dimensions of RD-TCJ Standard Series Gearbox
Dimensions Model	RD-TCJ132	RD-TCJ180	RD-TCJ225	RD-TCJ280	RD-TCJ315
A	16	18	20	24	32
B	31.8	34.4	39.9	50.4	67.4
C	55	60	70	90	120
D	115(1:10)	115(1:10)	115(1:10)	115(1:20)	154(1:20)
E	91	126	205	223	245
F	320	360	400	516	560
G	265	300	400	500	600
H	φ28/φ38	φ42/φ48	φ55/φ60	φ65/φ75	φ80
I	8/10	12/14	16/18	18/20	22
J	17.3/22.3	24.3/27.8	31.8/34.4	36.9/42.4	45.4
K	14	16	18	18	20
L	300	350	450	550	660
M	230	250	350	450	550
0	16	19	19	22	22
P	220	270	290	349	403

Table 6: Reference Table for Large Industrial Cooling Towers
Cooling Tower Water Flow	Gearbox Model	Fan Model	Air Volume	Air Pressure	Number of Blades
700 t	RD-TCJ225-30-160	RD-TLF47	600000	127	6
800 t	RD-TCJ280-37-160	RD-TLF55	760000	127	6
1000 t	RD-TCJ280-45-160	RD-TLF55	950000	132	6
1500 t	RD-RD-TCJ280-55-160	RD-TLF60	1020000	132	6
1500 t	RD-TCJ315-75-155	RD-TLF70	1400000	155	6
2000 t	RD-TCJ315-90-155	RD-TLF77	1900000	127	6
30001 t	RD-TCJ315-110-155	RD-TLF80	1500000	140	6

Table 7: RD-TCJ Standard Series Gearbox List
Specification Model	Matching Motor Specification	Noise Test Value at 3 m (dB)	Motor Weight (kg)	Gearbox Weight (kg)	Reducer Weight (kg)
RD-TCJ132-4-180	V1 4KW-6(132M1)	67	64	92	156
RD-TCJ132-4-210	V1 4KW-6(132M1)	67	64	92	156
RD-TCJ132-4-270	V1 4KW-4(112M)(+)	67	46	92	138
RD-TCJ132-4-320	V1 4KW-4(112M)(+)	68	46	92	138
RD-TCJ132-5.5-180	V1 5.5KW-6(132M2)	67	75	92	167
RD-TCJ132-5.5-210	V1 5.5KW-6(132M2)	67	75	92	167
RD-TCJ132-5.5-270	V1 5.5KW-4(132S1)	68	59	92	151
RD-TCJ132-5.5-320	V1 5.5KW-4(132S1)	68	59	92	151
RD-TCJ132-7.5-270	V1 7.5KW-4(132M)	68	72.5	92	164.5
RD-TCJ132-7.5-320	V1 7.5KW-4(132M)	68	72.5	92	164.5
RD-TCJ180-11-165	V1 11KW-6(160L)	67	107	133	240
RD-TCJ180-11-210	V1 11KW-4(160M)	70	107	133	240
RD-TCJ180-11-250	V1 11KW-4(160M)	70	107	133	240
RD-TCJ180-15-165	B35 15KW-6(180L)	67	130	133	263
RD-TCJ180-15-210	V1 15KW-4(160L)	70	139	133	263
RD-TCJ180-15-250	V1 15KW-4(160L)	70	130	133	263
RD-TCJ180-18.5-210	B35 18.5KW-4(180M)	70	153	133	286
RD-TCJ180-18.5-250	B35 18,5KW-4(180M)	70	153	133	286
RD-TCJ180-22-210	B35 22KW-4(180L)	70	190/225	33	323/356
RD-TCJ180-22-250	B35 22KW-4(180L)	70	170	133	303
RD-TCJ225-18.5-200	B35 18.5KW-6(200L1)	71	204	218	422
RD-TCJ225-22-160	B35 18.5KW-6(200L1)	71	250	218	468
RD-TCJ225-22-200	B35 22KF-6(200L2)	71	250	218	468
RD-TCJ225-30-160	B35 30KW-6(225M)	71	305	218	523
RD-TCJ225-30-200	B35 30KW-6(225M)	71	305	218	523
RD-TCJ225-30-240	B35 30KW-6(200L)	71	305	213	518
RD-TCJ225-37-160	B35 37KW-6(225L2) Special Motor	71	278	218	496
RD-TCJ225-37-200	B35 37KW-6(225L2) Special Motor	71	278	218	496
RD-TCJ225-37-240	B35 37KW-4(225S)	73	278	235	513
RD-TCJ225-45-240	B35 45KW-4(225M)	73	511	218	729
RD-TCJ250-37-160	B35 37KF-6(250M)	75	355	389	744
RD-TCJ280-45-160	B35 45KW-6(280S)	75	312	405	717
RD-TCJ280-55-160	B35 55KW-6(280M)	77	582	405	987
RD-TCJ315-110-155	B35 110KW-6(315L1)	77	1100	643	1743
RD-TCJ315-75-155	B35 75KW-6(315S)	77	879	643	1513
RD-TCJ315-90-155	B35 90KW-6(315M)	77	936	643	1579

Application

For power 4–45 KW – 110 KW, 1000 t – 3500 t industrial cooling towers and large air coolers.

For industrial cooling towers and large air coolers

RD-PVD Belt Pulley Reducer – Power Equipment for Small & Medium Industrial Cooling Towers

A belt pulley reducer placed on a flat surface

RD-PVD belt pulley reducer uses a belt pulley for transmission. It can be installed in a normal way ( fan located at the top of the cooling tower, blowing downward ) or in an inverted way ( fan installed at the bottom of the cooling tower, blowing upward ), and can fully meet the special needs of customers. Belt transmission operates smoothly, with low noise and low vibration, effectively mitigating load impact and providing overload protection. The structure of the pulley transmission is simple, with a large adjustment range for the center distance of the wheel shaft, making it easy to adjust. The following types are available: RD-PVD132 and RD-PVD160.

Features

Smooth operation, low noise, low vibration.
Mitigate load impact, and provide overload protection.
Simple structure, easy to adjust, wide adjustment range.

Technical Data

The dimensions of RD-PVD beltpulley reducer are displayed from 3 different views.

Table 8: External and Installation Dimensions of RD-PVD Standard Series Gearbox
Dimensions Model	RD-PVD132	RD-PVD160
A	450	630
B	260	300
C	100	120
D	50	70
E	144	162
F	458	590
G	34	34
H	286	368
J	115	115
K	160	170
M	12.5	19
N	220	260
P	50	70
R	14	20
S	44.5	62.5

Table 9: RD-PVD Standard Series Gearbox List
Specification Model	Driving Gear Specifications	Driven Pulley Specifications	Matching Motor Specification	Noise Test Value at 3 m (dB)	Motor Weight (kg)	Gearbox Weight (kg)	Reducer Weight (kg)
RD-PVD132-4-346	450	114×28×4	4-4P	53	46	17.6	36.2
RD-PVD132-4-393	450	128×28×4	4-4P	53	46	17.6	36.2
RD-PVD132-5.5-346	450	114×38×4	5.5-4P	54	59	17.6	36.2
RD-PVD132-5.5-393	450	128×38×4	5.5-4P	54	59	17.6	36.2
RD-PVD132-7.5-296	450	114×38×4	7.5-4P	55	72.5	17.6	36.2
RD-PVD132-7.5-393	450	128×38×4	7.5-4P	55	72.5	17.6	36.2
RD-PVD132-5.5-275	630	128×38×4	5.5-4P	55	59	17.6	36.2
RD-PVD132-7.5-275	630	128×38×4	7.5-4P	56	72.5	17.6	36.2
RD-PVD160-11-275	630	181×42x4	11-6p	57	107	25.8	63.1
RD-PVD160-15-275	630	181×42×4	15-6p	58	130	25.8	63.1

Application

For medium and small-sized low-noise cooling towers and air coolers with a power of 4–15 KW for civilian use.

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