China Professional 110/140/170/210 Hollow Shaft with Keyway Fubao Spiral Bevel Gear Reducer Planetary Gearbox Ra065-Ht-G Pht manufacturer

Product Description

Reducer Description

Planetary gear reducer is often used in the field of precision motion control to meet the application requirements of high torque, high torsional rigidity, and low backlash.

Compact Structure
Planetary Gear Reducer is characterized by full utilization of space, designing bearings and gear ratio in a limited space, so that the product is smaller and more space-saving than traditional reducers.

High Strength
The gear set of the reducer is very strong and stable, and the thickness of the gear disperses the load acting on the gear. The large-span bearing set provides a stable structure; the precision gear set distributes the load to each planetary gear under tight meshing to withstand the torque load. With this design, Pin Hong can provide better products to the market.

High Stability
The precision machining of Pin Hong Technology ensures that the products are coaxial and concentric, and the bearing designed with a large span provides the product with excellent stability.

Reducer Parameters

Size RA065 RA090 RA110 RA140 RA170 RA210
D1 M4 M6 M8 M10 M12 M16
D3 k6 13 18 22 32 40 50
D4 h7 63 88 108 135 165 205
D5 48 60 90 110 122 130
D6 M4 M5 M8 M12 M16 M16
D7 21 28 33 47 55 75
D12 62 86 106 104 128 160
D14 h7 63 88 108 135 165 205
D15 62.9 87 107 103 127 158
L1 65 90 110 140 170 210
L2 19.5 35 40 50 60 75
L3 13 15 15 15 15 20
L4 2 2 2 2 2 2
L5 16 28 32 45 50 70
L6 2 3.5 4 2.5 5 2.5
L7 47.5 62 72 87 102 127
L8 67 97 112 137 162 202
L9 4.5 4.8 7.2 10 12 12
L10 10 12.5 20 30 40 40
L11 27 36 44 55 67 85
L13 13 15 15 15 15 20
L21 38 49 54 55 63 83
L22 70.5 94 109 125 148 188
C1¹ 70 100 130 130 165 215
C2¹ M5 M6 M8 M8 M10 M12
C3¹ ≤14 ≤24 ≤24 ≤32 ≤38 ≤55
C4¹ ≤34 ≤40 ≤46 ≤53 ≤66 ≤82.5
C5¹ 50 80 80 110 130 180
C6¹ 8 6 10 10 10 11
C7¹ 65 90 110 115 142 190
C8¹ 30.5 31 32.5 50 54.5 76
C9¹ 133.5 170 196.5 245 287.5 369
C10¹ 14.5 17 19 19 23 24
B1 h9 5 6 6 10 12 14
H1 15 20.5 24.5 35 43 53.5


Reducer Details


Other Reducer Products


Reducer Advantage

Product features:

1. aluminum alloy material can improve the heat dissipation capacity, slow down the temperature rise phenomenon.

2. reciprocating positioning accuracy is good.

3. customized into the force end, can be matched with all kinds of motors.

4. oil seal with special design, normal use without maintenance or replacement of lubricating oil.

5. Diversified output shaft can be adapted to various occasions.

6. to provide a single segment of 1-5 ratio design to make the product ratio more diversified.

7. provide ball and tapered roller bearings for customers to choose.

8. provide in a precision level for customers to choose.


Company Profile



Q:Key points of selection of planetary reducer

A:1. Frame number determined by torque: the power source will have the effect of torque amplification after deceleration ratio. The output torque value of the reducer is proportional to the deceleration ratio, and the larger the ratio, the higher the torque value will be; But the gear group of the reducer has the limit, so the rated output torque of the planetary reducer is to say that the product can work stably under the data operation, so the box number must be selected according to the demand torque.

2. According to the accuracy to determine the model: in the process of automation will need positioning, when the positioning accuracy requirements are higher, you need to choose a higher level of products, and vice versa. The precision of the planetary reducer is called the “backgap”, which refers to the gap of the gear group. The definition is the Angle value that the output shaft of the planetary reducer can rotate when the input end is fixed. The smaller the return clearance is, the higher the accuracy is and the higher the cost is. The user can choose the right accuracy according to their actual situation.

3. According to the installation size selection: that is, the size of the front end of the servo motor. The input end of the planetary reducer must match the output end of the servo motor.

4. According to the appearance selection: according to customer demand output shaft and connecting surface has a standard series for users to choose, can also be customized according to user special needs.

5. According to the axial and radial force selection: the life of the planetary reducer is affected by the internal bearing, bearing life can be calculated through the load and speed, when the axial and radial force load of the reducer is higher, the bearing life will be shortened, at this time it is recommended to choose a large product.

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Application: Motor, Machinery, Agricultural Machinery, Automatic Equipment
Hardness: Hardened Tooth Surface
Installation: Vertical Type


Customized Request

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Shipping Cost:

Estimated freight per unit.

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Payment Method:


Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

spiral gear

How do spiral gears handle variations in tooth engagement during operation?

Spiral gears are designed to handle variations in tooth engagement during operation effectively. The unique helical tooth arrangement of spiral gears allows them to accommodate these variations and provide several benefits. Here’s how spiral gears handle variations in tooth engagement:

  • Gradual Engagement: One of the key advantages of spiral gears is their ability to achieve gradual tooth engagement. As the gears rotate, the helical shape of the teeth allows them to come into contact gradually, starting from one end of the gear to the other. This gradual engagement minimizes the impact and shock that would occur with sudden full tooth contact in other gear types. It results in smoother and quieter operation, reducing noise, vibrations, and stress on the gear system.
  • Increased Tooth Contact Area: Spiral gears provide a larger tooth contact area compared to straight-cut or spur gears. The helical tooth profile extends the contact length along the gear face, distributing the load over multiple teeth at any given moment. This increased contact area enables spiral gears to handle higher loads and transmit torque more efficiently.
  • Load Sharing: Due to the helical arrangement, spiral gears naturally distribute the load across multiple teeth. This load-sharing characteristic helps to minimize tooth wear and fatigue. As the gears rotate, different teeth come into contact, ensuring that the load is distributed evenly. This load sharing capability enhances the gear system’s durability and extends its service life, particularly in applications with fluctuating loads.
  • Reduction of Side Thrust: Spiral gears generate an axial thrust force during operation. However, by using pairs of spiral gears with opposite helix angles, this side thrust force can be greatly reduced or even eliminated. When paired gears with opposite helix angles mesh together, the axial thrust forces cancel each other out. This eliminates the need for additional thrust bearings or complex gear arrangements to counteract the axial forces, simplifying the gear system design.
  • Improved Lubrication: The helical tooth profile of spiral gears promotes better lubrication. The continuous sliding motion between the teeth creates a pumping action that helps distribute lubricant along the tooth surfaces. This improved lubrication reduces friction, heat generation, and wear, enhancing the overall efficiency and longevity of the gear system.

These features of spiral gears—gradual engagement, increased tooth contact area, load sharing, reduction of side thrust, and improved lubrication—make them highly effective in handling variations in tooth engagement during operation. Spiral gears are commonly used in various applications such as automotive transmissions, industrial machinery, and power generation systems, where smooth and reliable power transmission is crucial.

spiral gear

How do spiral gears handle variations in speed and load conditions?

Spiral gears, also known as helical gears, are designed to effectively handle variations in speed and load conditions. Their unique tooth profile and design features allow them to adapt to changing operating conditions. Here’s how spiral gears handle variations in speed and load:

  • Gradual Tooth Engagement: The helical tooth arrangement in spiral gears enables gradual tooth engagement as the gears mesh. This characteristic is advantageous when dealing with speed variations. The gradual engagement reduces impact and minimizes the shock loads that can occur during rapid changes in speed, ensuring smoother gear operation and improved reliability.
  • Load Distribution: Spiral gears distribute the load across multiple teeth due to their helical tooth arrangement. This load distribution capability is beneficial when encountering variations in load conditions. By spreading the load over multiple teeth, spiral gears can handle higher loads and minimize stress concentrations on individual teeth. This feature helps prevent premature wear and tooth failure, ensuring better performance under changing load conditions.
  • Efficient Power Transmission: Spiral gears offer efficient power transmission, even when there are variations in speed and load. The gradual tooth engagement, combined with the curved tooth profile, reduces sliding friction and ensures smooth gear operation. This efficiency in power transmission helps maintain consistent performance and minimizes energy losses, regardless of speed and load variations.
  • Ability to Handle Shock Loads: Spiral gears have the ability to handle shock loads that may occur during sudden changes in load or speed conditions. The gradual tooth engagement and load distribution characteristics help absorb and distribute the impact forces, reducing the risk of gear damage or failure. This resilience to shock loads enhances the overall durability and reliability of spiral gears.
  • Flexibility in Gear Design: Spiral gears offer flexibility in gear design, allowing for customization to meet specific speed and load requirements. The helix angle, number of teeth, and tooth profile can be tailored to optimize performance under varying operating conditions. This adaptability in gear design ensures that spiral gears can effectively handle a wide range of speed and load variations.

These features and design characteristics of spiral gears enable them to handle variations in speed and load conditions effectively. Their ability to provide gradual tooth engagement, distribute loads, transmit power efficiently, handle shock loads, and accommodate flexible gear design makes them suitable for diverse applications where speed and load variations are encountered.

spiral gear

Can you describe the unique tooth profile of spiral gears?

The unique tooth profile of spiral gears, also known as helical gears, sets them apart from other gear types. Here is a description of the key characteristics of the tooth profile:

  • Helical Shape: The teeth of spiral gears are helically shaped, meaning they have a curved or slanted form. This helical shape is a result of the helix angle, which is the angle between the tooth surface and the gear axis. The helical shape allows for gradual tooth engagement and smooth gear operation.
  • Curved Tooth Surface: The tooth surface of spiral gears is curved or oblique due to the helical shape. This curved profile enables the teeth to engage gradually and smoothly as the gears rotate, reducing impact and noise during gear meshing.
  • Lead: The lead of a spiral gear refers to the distance the gear advances axially in one complete revolution. The lead is determined by the helix angle and the number of teeth on the gear. The lead affects the contact pattern and gear meshing characteristics.
  • Contact Pattern: When spiral gears mesh, the contact pattern between the teeth changes as the gears rotate. Initially, the contact starts near the smaller end of the tooth and gradually moves across the tooth face as the gears rotate. This shifting contact pattern helps distribute the load over multiple teeth and reduces localized stresses.
  • Helix Angle: The helix angle is the angle between the tooth surface and the gear axis. It determines the amount of helical shape in the tooth profile. A larger helix angle results in a more pronounced helical shape, while a smaller angle produces a shallower helix. The helix angle affects the load-carrying capacity, smoothness of operation, and axial thrust characteristics of the spiral gears.

These unique characteristics of the tooth profile in spiral gears, such as the helical shape, curved tooth surface, lead, contact pattern, and helix angle, contribute to their smooth operation, efficient power transmission, and ability to handle high loads. The tooth profile design of spiral gears is crucial in achieving reliable and effective gear meshing in various mechanical systems and applications.

China Professional 110/140/170/210 Hollow Shaft with Keyway Fubao Spiral Bevel Gear Reducer Planetary Gearbox Ra065-Ht-G Pht manufacturer China Professional 110/140/170/210 Hollow Shaft with Keyway Fubao Spiral Bevel Gear Reducer Planetary Gearbox Ra065-Ht-G Pht manufacturer
editor by CX 2024-01-05