Gearing Arrangement: Helical
Output Torque: 3.7~35799N.M.
Rated Power: 0.18~ 160KW.
Input Speed: <2000rpm
Output Speed: 4.8~298 RPM
Model Number: RC
Color: RAL5571 blue or other
Input Form: IEC flange, directly connected with motor, solid shaft
Output Form: Solid shaft
Material: Cast iron
Quality Control System: ISO9001:2008
Noise(MAX): 60-68dB
Vibration: ≤20μm
Mounting Position: foot mounted, flange mounted,torque arm mounted
Packaging Details: Wooden Box&Pallet , Or Carton&Pallet
Port: HangZhou Port, or ZheJiang Port

135a marine gearbox
Small size: standard export packing (carton and pallet);
Big size: fumigated wood carton or non-wood packing material carton

About us

We are 1 of the leading manufacturers of gearbox in China, specialized in gearbox industry about 26 years. Up to now, we have owned 4 main product categories such as cycloid reducer, worm gearbox, variable reducer and helical gearbox. Our goal is to provide high quality products and first-class services for our customers. At the same time we can help our clients develop special gearbox for their application and OEM service.

Product features

1. RC series helical gear speed reducer own rational design, PM source factory custom pvc water tap moulds molding parts other plastic parts compact construction, smaller size than X or B series cycloidal gearmotor at the same permitted torque.
2. Little vibration and low noise, with high transmission efficiency.
3. The products have been mainly used in chemical machinery, cement agitator machinery, printing and packaging machinery, mine and power transmission machinery, metallurgy etc.

General Technical data

Housing material	HT250 high-strength cast iron
Housing hardness	HBS190-240
Gear material	20CrMnTi alloy steel
Surface hardness of gears	HRC58°~62 °
Gear core hardness	HRC33~40
Input / Output shaft material	42CrMo alloy steel
Input / Output shaft hardness	HRC25~30
Machining precision of gears	accurate grinding, 6~5 Grade
Lubricating oil	GB L-CKC220-460, Shell Omala220-460
Heat treatment	tempering, cementiting, Plastic Mold Injection Molding Connect Part Injection Moulding Abs Fixing Base Parts , Plastic Household Product quenching, etc.
Efficiency	94%~96% (depends on the transmission stage)
Noise (MAX)	60~68dB
Temp. rise (MAX)	40°C
Temp. rise (Oil)(MAX)	50°C
Vibration	≤20µm
Backlash	≤20Arcmin
Brand of bearings	China Top brand HRB,LYC,ZWZ or other brands requested, NSK…..
Brand of oil seal	NAK— ZheJiang or other brands requested

Model	Shaft Dia.	Center Height	Output Flange Dia.	Power	Ratio	Permitted Torque	Weight
	Solid (mm)	(mm)	(mm)	(kw)		(Nm)	(KGS)
RC37	25k6	90h13	120/160	0.12~0.75	5~136	150	10
RC47	30k6	115h13	160/200	0.25~2.2	5~173	300	15
RC57	35k6	115h13	200/250	1.18~5.5	5~173	400	21
RC67	35k6	130h13	200/250	0.37~7.5	5~170	500	27
RC77	40k6	140h13	250/300	0.55~11	5~192	750	35
RC87	50k6	180h13	300/350	0.75~18.5	5~192	1250	65
RC97	60m6	225h13	350/450	1.5~30	5~197	2400	120
RC107	70m6	250h13	350/450	2.2~45	5~197	3600	165
RC137	90m6	315h13	450/550	4~55	5~197	6600	255
RC147	110m6	355h13	450/550	7.5~90	5~195	10700	370
RC167	120m6	425h13	550/660	11~132	8~186	14800	700
RC187	160m6	510h13	660/770	15~160	8~186	28000	1500
Remark: the weight without oil and motor, shaft and flange input add 10%.

omiter helical gearbox helical gear speed reducer set gearbox unit gearmotor
Packaging & Plastic Factory Customized Plastic Production Plastic Injection Product Shipping
Our Services
Company Information
FAQ

Key Market Insights Related to Worm Reduction Gearboxes

A gearbox is a mechanical device that allows you to shift between different speeds or gears. It does so by using one or more clutches. Some gearboxes are single-clutch, while others use two clutches. You can even find a gearbox with closed bladders. These are also known as dual clutches and can shift gears more quickly than other types. Performance cars are designed with these types of gearboxes.

Backlash measurement

Gearbox backlash is a common component that can cause noise or other problems in a car. In fact, the beats and sets of gears in a gearbox are often excited by the oscillations of the engine torque. Noise from gearboxes can be significant, particularly in secondary shafts that engage output gears with a differential ring. To measure backlash and other dimensional variations, an operator can periodically take the output shaft’s motion and compare it to a known value.
A comparator measures the angular displacement between two gears and displays the results. In one method, a secondary shaft is disengaged from the gearbox and a control gauge is attached to its end. A threaded pin is used to secure the differential crown to the secondary shaft. The output pinion is engaged with the differential ring with the aid of a control gauge. The angular displacement of the secondary shaft is then measured by using the dimensions of the output pinion.
Backlash measurements are important to ensure the smooth rotation of meshed gears. There are various types of backlash, which are classified according to the type of gear used. The first type is called circumferential backlash, which is the length of the pitch circle around which the gear rotates to make contact. The second type, angular backlash, is defined as the maximum angle of movement between two meshed gears, which allows the other gear to move when the other gear is stationary.
The backlash measurement for gearbox is one of the most important tests in the manufacturing process. It is a criterion of tightness or looseness in a gear set, and too much backlash can jam a gear set, causing it to interface on the weaker part of its gear teeth. When backlash is too tight, it can lead to gears jamming under thermal expansion. On the other hand, too much backlash is bad for performance.

Worm reduction gearboxes

Worm reduction gearboxes are used in the production of many different kinds of machines, including steel and power plants. They are also used extensively in the sugar and paper industries. The company is constantly aiming to improve their products and services to remain competitive in the global marketplace. The following is a summary of key market insights related to this type of gearbox. This report will help you make informed business decisions. Read on to learn more about the advantages of this type of gearbox.
Compared to conventional gear sets, worm reduction gearboxes have few disadvantages. Worm gear reducers are commonly available and manufacturers have standardized their mounting dimensions. There are no unique requirements for shaft length, height, and diameter. This makes them a very versatile piece of equipment. You can choose to use one or combine several worm gear reducers to fit your specific application. And because they have standardized ratios, you will not have to worry about matching up multiple gears and determining which ones fit.
One of the primary disadvantages of worm reduction gearboxes is their reduced efficiency. Worm reduction gearboxes usually have a maximum reduction ratio of five to sixty. The higher-performance hypoid gears have an output speed of around ten to twelve revolutions. In these cases, the reduced ratios are lower than those with conventional gearing. Worm reduction gearboxes are generally more efficient than hypoid gear sets, but they still have a low efficiency.
The worm reduction gearboxes have many advantages over traditional gearboxes. They are simple to maintain and can work in a range of different applications. Because of their reduced speed, they are perfect for conveyor belt systems.

Worm reduction gearboxes with closed bladders

The worm and the gear mesh with each other in a combination of sliding and rolling movements. This sliding action is dominant at high reduction ratios, and the worm and gear are made of dissimilar metals, which results in friction and heat. This limits the efficiency of worm gears to around thirty to fifty percent. A softer material for the gear can be used to absorb shock loads during operation.
A normal gear changes its output independently once a sufficient load is applied. However, the backstop complicates the gear configuration. Worm gears require lubrication because of the sliding wear and friction introduced during movement. A common gear arrangement moves power at the peak load section of a tooth. The sliding happens at low speeds on either side of the apex and occurs at a low velocity.
Single-reduction gearboxes with closed bladders may not require a drain plug. The reservoir for a worm gear reducer is designed so that the gears are in constant contact with lubricant. However, the closed bladders will cause the worm gear to wear out more quickly, which can cause premature wear and increased energy consumption. In this case, the gears can be replaced.
Worm gears are commonly used for speed reduction applications. Unlike conventional gear sets, worm gears have higher reduction ratios. The number of gear teeth in the worm reduces the speed of a particular motor by a substantial amount. This makes worm gears an attractive option for hoisting applications. In addition to their increased efficiency, worm gears are compact and less prone to mechanical failure.

Shaft arrangement of a gearbox

The ray-diagram of a gearbox shows the arrangement of gears in the various shafts of the transmission. It also shows how the transmission produces different output speeds from a single speed. The ratios that represent the speed of the spindle are called the step ratio and the progression. A French engineer named Charles Renard introduced five basic series of gearbox speeds. The first series is the gear ratio and the second series is the reverse gear ratio.
The layout of the gear axle system in a gearbox relates to its speed ratio. In general, the speed ratio and the centre distance are coupled by the gear axles to form an efficient transmission. Other factors that may affect the layout of the gear axles include space constraints, the axial dimension, and the stressed equilibrium. In October 2009, the inventors of a manual transmission disclosed the invention as No. 2. These gears can be used to realize accurate gear ratios.
The input shaft 4 in the gear housing 16 is arranged radially with the gearbox output shaft. It drives the lubricating oil pump 2. The pump draws oil from a filter and container 21. It then delivers the lubricating oil into the rotation chamber 3. The chamber extends along the longitudinal direction of the gearbox input shaft 4, and it expands to its maximum diameter. The chamber is relatively large, due to a detent 43.
Different configurations of gearboxes are based on their mounting. The mounting of gearboxes to the driven equipment dictates the arrangement of shafts in the gearbox. In certain cases, space constraints also affect the shaft arrangement. This is the reason why the input shaft in a gearbox may be offset horizontally or vertically. However, the input shaft is hollow, so that it can be connected to lead through lines or clamping sets.

Mounting of a gearbox

In the mathematical model of a gearbox, the mounting is defined as the relationship between the input and output shafts. This is also known as the Rotational Mount. It is one of the most popular types of models used for drivetrain simulation. This model is a simplified form of the rotational mount, which can be used in a reduced drivetrain model with physical parameters. The parameters that define the rotational mount are the TaiOut and TaiIn of the input and output shaft. The Rotational Mount is used to model torques between these two shafts.
The proper mounting of a gearbox is crucial for the performance of the machine. If the gearbox is not aligned properly, it may result in excessive stress and wear. It may also result in malfunctioning of the associated device. Improper mounting also increases the chances of the gearbox overheating or failing to transfer torque. It is essential to ensure that you check the mounting tolerance of a gearbox before installing it in a vehicle.

editor by czh2023-02-18