Advance 120B Marine Gearbox Parts

Apr 3, 2025 | 120 Series, 120 100-500kW | 0 comments

The speed input range of the Advance 120B marine gearbox is 750-1800 RPM, with engine input power from 79.2 kW to 158.4 kW. the center distance is 190 mm, the reduction ratio range is 2.03-3.73, the transmission capacity range is 0.044-0.088 kW/RPM, the rated propeller thrust is 25 KN, and the input shaft is in the train Opposite to the output shaft.

Advance 120B marine gearbox is composed of transmission shaft, output coupling, input coupling, oil pressure gauge, oil Filter, control system, oil pump and other important components.

Advance 120B marine gearboxes provides two types of control system which are push-pull flexible shaft, electric control for customers to choose. To meet the different requirement of coupling with different engine brand and models, Advance 120B marine gearboxes provide different SAE size coupling and housing including SAE 1, flywheel SAE 14 is available……

All of our Advance 120 series marine gearbox can provide CCS classification certificate, some of series can provide international classifications with extra costs which mainly including French BV, British LR, American ABS, Japanese NK , Norway DNV-GL, Russia RS, South Korea KR, Italy RINA and other classification societies.

Advantages Of Advance 120B Marine Gearbox Parts

It has the functions of reversing, clutching, and deceleration, and can be matched with various marine diesel engines with equivalent torque to form a unit. Applicable to all kinds of medium and small ships.
The gearbox has a compact structure and can be controlled by a variety of control methods. The operation is light and sensitive, and it can be operated from a distance, which is convenient for driving and machine integration.
The advanced design makes the connection of the gearbox very soft, easy to maintain, more durable, and has the characteristics of large transmission power, small size and light weight.
The toothed elastic input coupling and connection cover can be matched with various flywheels and flywheel shells to connect with the host, easy installation and beautiful appearance.
With excellent deceleration effect and strong bearing propeller thrust.
Professional gearbox specialists and after-sales service, spare parts directly available from stock.

Technical Specifications

Gearbox Model:	120B
Input Speed:	750-1800 RPM
Power:	79.2-158.4 kW @ 2100 RPM
Center Distance:	190 mm
Trans.Capacity:	0.044-0.088 kW / RPM
Reduction Ratio:	2.03 3.73
Rated Thrust:	25 kN
Dimension:	605 mm * 744 mm * 770 mm
Net Weight:	400 kg
Lead Time:	15-30 Working Days
Payment Terms:	T/T ,L/C

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No.	Name	Order No.	Qty	Remarks
1	Input shaft	1201—0022B	1	/
2	Screwing Screw	M8 x 8GB73 – 66	I	/
3	Working Piston	1201 – 0005	1	/
4	Sealing Ring	φ5 x 75Q/HC5—66	1	/
5	Oil seal	1201—0025A	1	/
6	Return Plug	1201 —0004	1	/
7	Thrust Ring	1201 一－0016	2	/
8	Distributor Bush	1201 – 0008	I	/
9	Needle Bearing	9243/55	2	/
10	Spacer	1201 – 0011	1	/
11	Driving Gear	1201 – 2012	1	/
11	Driving Gear	1201 3012	1	/
12	Connecting Sleeve	1201 —0013A	1	/
l3	Rear Plate	1201 – 0014A	1	/
14	Bolt	M8 x L6GB21 – 66	4	/
15	Flat Key	A 18 x 65JB113—66	1	/
16	Bolt	M8 x 85GB21—66	8	/
17	Clutch Retainer	1201—0024A	8	/
18	Thrust Plate	1201 – 0009	1	/
19	Single – face Clutch Disc	1201 – 0018	2	/
20	Inner Clutch Disc	1201 – 0019	6	/
21	Outer Clutch Disc	1201—0007	5	/
22	Clutch Housing	1201—0006A	1	/
23	Cylinder Body	1201—0003A	1	/
24	Nut	AM8GB51—66	8	/
25	Pin	8ga x 22GBI 19 – 66	2	/
26	Trans. Gear	1201-0002	1	/
26	Trans. Gear	ZT1201-0002	1	/
27	Ball Bearing	46118	1	/
28	Sleeve	1201—0001	1	/
29	Roller Bearing	3612	1	/
30	Front Plate	1201—0023	1	/
31	Washer	10GB93—66	2	/
32	Bolt	M10 x 22GB21 – 66	2	/
——END——

No.	Name	Order No.	Qty	Remarks
1	Secondary Shaft	1202—0001	1	/
2	Screwing Screw	M8 x 8GB73 – 66	1	/
3	Working Piston	1201 – 0005	1	/
4	Sealing Ring	φ 5 x φ 75Q/HG5—66	1	/
5	Oil Seal	1201—0025A	1	/
6	Return Plug with Left – Hand Thread	1202—0004	1	/
7	Distributor Bush	1201—0008	1	/
8	Needle Bearing	9243/55	2	/
9	Spacer	1201—0011	1	/
10	Driving Gear	1201—3012	1	/
10	Driving Gear	1201—3012	1
11	Thrust Ring	1201—0016	1	/
12	Connecting Sleeve	1201—0013A	1	/
13	Rear Plate	1201 – 0014A	1	/
14	Bolt	M8 x l6GB2l—66	4	/
15	Bolt	M8 x 85GB21—66	8	/
16	Clutch Retainer	1201—0024A	8	/
17	Thrust Plate	1201—0009	1	/
18	Single – face Clutch Disc	1201—0018	2	/
19	Inner Clutch Disc	1201 – 0019	6	/
20	Outer Clutch Disc	1201—0007	5	/
21	Clutch Housing	1201—0006A	1	/
22	Cylinder Body	1201—0003A	1	/
23	Nut	AM8GB51—66	8	/
24	Dowel Pin	8ga x 22GBI 19—66	2	/
25	Trans. Gear	1202—0002	1	/
26	Trans. Gear	ZT1202—0002	1	/
27	Roller Bearing	3612	1	/
28	Plug	1202—0005	1	/
——END——

No.	Name	Order No.	Qty	Remarks
1	Bolt	M10 x 22GB21 – 66	2	/
2	Washer	10GB93 – 66	6	/
3	Front Plate	1203 – 0006	1	/
4	Roller Bearing (Inner Ring)	2313	1	/
5	Ball Bearing	66314	1	/
6	Output Shaft	1203 0001B	1	/
7	Driven Gear	1203-2002	1	/
7	Driven Gear	1203-3002	1	/
8	Roller Bearing	3614	1	/
9	Output Coupling	1203 – 0003B	1	/
10	Locking Washer	M56GB858 – 67	4	/
11	Round Nut	M56 x 2GB812 – 67	1	/
12	Flat Key	A20 x 90JB113 – 60	1	/
——END——

No.	Name	Order No.	Qty	Remarks
1	Gasket	1204-0021	2	/
2	Plug	CT016 – 73	1	/
3	Box Cover	1204-0001	1	/
4	Tapered Pin (Inside Threaded)	12 x 30GB118 – 66	2	/
5	Sealing Ring	φ2xφ16Q/HC5-66	5	/
6	Gasket	1204-0004	2	/
7	Spring Washer	8GB93 – 66	14	/
8	Bolt	M8 x 25GB21-66	14	/
9	Oil Dipstick	1204-0025	1	/
10	Handle	CT018-73	1	/
11	Roller Bearing	3614	2	/
12	Gasket	1204-0012	1	/
13	Plug	CT016 – 73	4	/
14	Rear End Cover	1204-0014	1	/
15	Locking Screw	M8 x 8GB73-66	2	/
16	Sealing Ring	1204-0032A	4	/
17	Inlet Plug	1204 – 0015	2	/
18	Spring Washer	6GB93-66	2	/
19	Screw	BM6 x 12GB67 – 66	2	/
20	Spring Washer	10GB93 – 66	53	/
21	Bolt	M10 x 28GB21 – 66	53	/
22	Cased Seal	φ70 X φ90 x 12HG4-692-67	1	/
23	End Cover	1204 – 0016B	1	/
24	Gasket	1204 – 0017	1	/
25	Rear End Cover	1204 – 0022	1	/
26	Gasket	1204 – 0023	1	/
27	Draining Plug	CTO19 – 73	1	/
28	Copper Washer	22Q/HC3 – 66	1	/
29	Housing	1204 – 0003	1	/
30	Gasket	1204 – 0002	1	/
31	Thrust Ring	1204 – 0007	1	/
32	Roller Bearing(Outer Ring)	2313	1	/
33	Strainer	1204 – 0018	1	/
34	Name Plate	CT001 – 73	1	/
35	Rivet	2 x 4GB827-67	4	/
36	Cover Plate	135 – 04 – 009	2	/
37	Bearing Cover	1204-0019	1	/
38	Spring Cover	1204-0008	1	/
39	Bearing Cover	1204-0009B	1	/
40	Cased Seal	PDφ60 Xφ80 x12HC4-692-67	1	/
——END——

No.	Name	Order No.	Qty	Remarks
1	Circlip	24GB894 – 67	3	/
2	Washer	C1D20 – 73	8	/
3	Trans. Ring	CTO23 – 73	8	/
4	Drive Bolt	C1D21 – 73	8	/
5	Input Coupling	1205 – 0001B	1	/
6	Drive Bolt Plate	CT022 – 73	8	/
7	Spring Washer	12GB93 – 66	8	/
8	Bolt	M12 x 20GB21 – 66	8	/
9	Bolt	M8 x 16GB21 – 66	16	/
10	Spring Washer	8GB93 – 66	16	/
11	Input Coupling Carrier	1205 – 0006D	1	/
——END——

No.	Name	Order No.	Qty	Remarks
1	Nut	M14×1.5GB53—76	1	/
2	Pump Trans. Gear	1206—0005	1	/
3	“O” Ring	φ5×φ100Q26—01	3	/
4	Dowel Pin	10ga×55GB119—76	2	/
5	Bolt	M8×55GB21—76	4	/
6	Spring Washer	8GB93—76	2	/
7	Retainer	Q07—01—01	1	/
8	Lower Pump Housing	Q07—01—04	1	/
9	Pump Housing	Q07—01—03	1	/
10	Bearing	Q07—01—05	4	/
11	Pump Driven Shaft	Q07—01—202	1	/
12	Flat Key	4×14GB1096—72	2	/
13	Pump Driven Gear	Q07—01—201	1	/
14	Pump Driving Gear	Q07—01—103	1	/
15	Snap Ring	16GB895—76	2	/
16	Pump Driving Shaft	Q07—01—101	1	/
17	Upper Pump Housing	Q07—01—02	1	/
18	Gasket	1206—0009A	1	/
19	Connecting Plate	1206—0001C	1	/
20	Washer	8GB97—76	4	/
21	Bolt	M8×20GB21—76	4	/
22	Bolt	M10×30GB21—76	6	/
23	Spring Washer	10GB93—76	6	/
——END——

No.	Name	Order No.	Qty	Remarks
1	Nut	M14×1.5GB923—76	1	/
2	Copper Washer	14Q20—03	1	/
3	Filter Housing	Q21—11	1	/
4	Tapered Spring	Q09—01A—02	1	/
5	Filter	uur36A—12—200	1	/
6	Steel Ball	φ10GB308—77	1	/
7	Spring	0.8×9×35.8JB272—60	1	/
8	Filter Spindle	Q09—01A—03	1	/
9	Pin	2.5×16GB119—76	1	/
10	“O” Ring	5×φ90Q26—01	1	/
11	Plug	M20×1.5Q20—01	1	/
12	Copper Washer	20Q20—03	1	/
13	Washer	8GB97—76	1	/
14	Spring	1.2×12×64JB272—60	1	/
15	Steel Ball	φ13GB308—77	1	/
16	Connecting Plate	135—07B—001	1	/
17	Plug	φ12Q21—13	1	/
18	Bolt	M8×35GB21—76	3	/
19	Washer	8GB93—76	8	/
20	Plug	φ7Q21—14	1	/
21	“O” Ring	φ16×2.4GB1235—76	1	/
22	Gasket	135—07—007	1	/
23	Bolt	M8×30GB21—76	5	/
24	Hydraulic Control System	Q06—01A—00	1	/
25	Bolt	M10×30GB21—76	Details on Parts list of Hydraulic Control As-sembly（Q06—01A—00）	/
26	Washer	10GB93—76	Details on Parts list of Hydraulic Control As-sembly（Q06—01A—01）	/
27	Gasket	Q06—01A—12	Details on Parts list of Hydraulic Control As-sembly（Q06—01A—02）	/
28	Copper Washer	14Q20—03	Details on Parts list of Hydraulic Control As-sembly（Q06—01A—03）	/
29	Oil Pipe Assembly	Q06—01A—200	Details on Parts list of Hydraulic Control As-sembly（Q06—01A—04）	/
30	Bolt	M14×1.5×30Q21—19	Details on Parts list of Hydraulic Control As-sembly（Q06—01A—05）	/
31	Plug	Q20—01M14×1.5	Details on Parts list of Hydraulic Control As-sembly（Q06—01A—06）	/
——END——

No.	Name	Order No.	Qty	Remarks
1	Gasket	1208—0011	1	/
2	Cooler Bottom	1208—0007B	1	/
3	Rear Flange	1208—0006	1	/
4	Water Pipe	1208—0005A	120	/
5	Spacer	1208—0003	6	/
6	Radiator	1208—0004	10	/
7	Flange	1208—0002A	1	/
8	Gasket	1208—0012	1	/
9	Cooler Cover	1208—0001	1	/
10	Spring Washer	8GB93—66	8	/
11	Bolt	M8×50GB21—66	8	/
12	Copper Washer	8Q/HC3—66	1	/
13	Draining Nut	1208—0013A	1	/
——END——