Jiangxi Richer Machinery Manufacturing Co.,Ltd
Which is professional grey cast iron and ductile cast iron manufactuer.
Why Choose Us
Advanced Technology
We have advanced equipment, such as automatic molding line.
Certificates
Won a honorary title of high-tech enterprise of China in 2023.
Strict Control
Our company has strong technical strength,strict quality process control, perfect production and testing equipment.
One-stop Solution
Providing technical support, troubleshooting, and maintenance services.
Agricultural Machinery Casting
High molding accuracy: Castings can accurately manufacture parts with complex shapes, with good repeatability of size and shape, and have the characteristics of precision casting.
Accessories For Agricultural Tractors
The advantages of cast iron materials for agricultural tractor accessories mainly include: Cost-effective: Cast iron is relatively inexpensive and easy to machine and weld, which makes it an affordable choice for the manufacture of tractor attachments.
Suitable for use in harsh environments: Since the rolling elements of the bearing in the roller are not in direct contact with the guide rail, and the bearing has good sealing, the V-type pulley can still maintain good performance in harsh environments.
Rice Transplanter Spare Parts Casting
Light weight and high strength: the use of aluminum alloy material transplanter parts, with light weight and high strength characteristics, which makes farmers more convenient to carry and operate.
Advantages of Pulley Castings With V-Groove
The advantages of V channel pulley cast mainly include:
Suitable For Use In Harsh Environments:
Since the rolling elements of the bearing in the roller are not in direct contact with the guide rail, and the bearing has good sealing, the V-type pulley can still maintain good performance in harsh environments. CUB's V guide technology also allows dust, chip and other impurs to be removed from the V guide surface through the "scavenging" movement to keep the V guide surface clean.
Faster Line Speed:
The rolling of the V pulley on the V rail surface can achieve a very high line speed, which lowers the accuracy requirements of the installation reference and increases the processing efficiency.
Lower Maintenance And Replacement Costs:
The V guide pulley casting can replace the wear rail or wheel separately, without the need to replace all, which reduces maintenance and replacement costs.
Longer Service Life:
The roller guide has a much longer life than the roller bearing, and in many cases, only the roller needs to be replaced, and then the required preload is obtained by adjusting the eccentricity of the eccentric roller.
Integral Rack Guide:
Linear guide can be directly cut out on the guide rail helical teeth, do not need to design another set of gear drive system, which simplifies the mechanical design.
Provide Higher Processing Accuracy And Better Cutting Effect:
The V pulley is suitable for the processing of metal and hard materials, and can provide better processing accuracy and cutting effect.
V-groove pulley castings have broad application prospects in automation equipment and robot applications because of their adaptability in harsh environments, high-speed processing capabilities, low maintenance costs, long service life, and high machining accuracy and cutting effects.
As disc-hub parts, pulleys are generally relatively large in size, and casting and forging are the major manufacturing processes. Casting is normally for the design of larger size, and the material is generally cast iron (good casting performance), rarely cast steel (poor casting performance); while the smaller size can be designed as forging with the material as steel. Pulleys are mainly used for long-distance transmission of power, such as mining machinery, machining equipment, textile machinery, packaging machinery, lathes, forging machines, etc.
The selection of various indicators and materials of the pulley is based on the principle of raw materials minimisation, feasible technology and lowest cost under the premise of meeting the usage requirements.
The Advantages Of Belt Pulley Transmission:
- Pulley transmission can ease load impact;
- Pulley transmission runs smoothly, with low noise and vibration;
- The structure of the pulley transmission is simple and easy to adjust;
- The manufacturing and installation accuracy of the pulley for the pulley transmission is not required as strict as for the meshing drive.
Types of V-Belt Pulleys




Several types of pulleys are used in v-belt transmissions, each with different implementation. Occasionally flat-belt pulleys are suitable when the backside of the v-belt is used to rotate the pulley in the opposite direction of the driven pulley, as commonly employed with ribbed v-belts.
Standard pulleys are pulleys that have traditional dimensions, with one or multiple grooves, which mate with classic, small-engine, and hexagonal-style v-belts.
Companion pulleys contain integral spokes which run radially on the pulley. This produces a high strength-to-weight ratio advantageous to fractional horsepower pulleys.
Idler pulleys are used solely as belt tensioners in many v-belt drives, but play an important part in maintaining the tension required to drive the transmission. Idlers can interact with either the wedged or flat side of the v-belt since no torque is required to be transmitted to this axle. Idler pulleys reduce belt service life and the efficiency of the drive, but are required in transmissions where the drive needs to clear obstructions, or the driven pulley does not maintain a sufficient arc of contact with the v-belt to transmit torque.
Variable speed pulleys have a variable pitch which adjusts the driven RPM, often within a range that is represented as a percentage. These pulleys are also useful for maintaining belt tension for dynamic loads.
Step pulleys have two or more non-adjustable grooves which have different pitches located around the same shaft. These pulleys change the speed ratio of the transmission.
Common materials of construction include: aluminum, brass, cast iron, plastic, stainless steel, steel, and zinc alloy. For v-belts which exceed 6,500 RPM, pulleys must be manufactured within closer tolerances to ensure stability.
V-Belt Pulley Components
Grooves
Pulleys are manufactured with grooves that are designed for a specific style and width of v-belt. A more comprehensive look at v-belts is offered in the v-belt and v-ribbed belts selection guide. Conventional and narrow v-belts are frequently cogged to improve the belt's flexibility and heat dissipation, but pulleys do not require any design alterations to interact with cogged v-belts. Cogged belts are typically represented by an 'X' in the belt denomination. Pulleys for conventional and narrow v-belts are frequently interchangeable provided the pitch widths and angles are equivalent.
|
Belt style |
Denomination/top width |
|
Conventional: Most common v-belt style; used in many transmission applications |
A: .5" B: .625" C: .875" D: 1.25" E: 1.5" |
|
Fractional Horsepower: A v-belt for light loads and small engines |
2L: .25" 3L: .375" 4L: .5" 5L: .65" |
|
Narrow: As strong as conventional v-belts, but with smaller widths |
3V: .375" 5V: .625" 8V: 1.0" |
|
Hexagonal: A v-belt with a hexagonal cross-section which can gain traction on pulleys placed inside or outside the belt drive. |
AA: .5" BB: .625" CC: .875" |
Mounting
Primarily, the bore diameter of the pulley must be a geometric match with the mating shaft. The shaft about which the pulley rotates is an axle, and the most common method of accommodating this axle is by the use of a simple bore, whereas the pulley is allowed to freely rotate about the axis with no torque transmitted. This bore is used in idler pulley applications, but is otherwise useless for power transmission. Other mounting styles include:
- Set screw: A through-hole allows a screw to be perpendicularly tightened against the axle.
- Keyway: An offset slot or shaft ensures an intimate fit along the axle to transfer torque between components.
- Press-on: An offset slot or shaft ensures an intimate fit along the axle to transfer torque between components.
- Weld-on: The pulley's hub is directly attached to the axle via welding.
- Taper bushing: A bolt-on tapered hub locks around the shaft.
- Clamped hub: A split hub is tightened around the axle by the use of a clamp.
How To Measure & Identify V-Belt Pulleys
One of the ever-growing and most widely used product types in the power transmission and automotive industries is the V-belt pulley, also known as the "sheave." A V-belt pulley is an attachment that transfers energy between axles with the help of a V-belt. However, to keep this important pair of devices functioning properly, one must secure the appropriate V-belt pulley replacement when an older one gets worn down. To do this, you need to know the size, dimensions, and type of your V-belt pulley so that the replacement will operate properly. Learning how to measure a V-belt pulley's size and calculate its dimensions is a simple task; however, properly identifying a V-belt pulley type can be a complex process. V-belt pulleys come in a multitude of different styles and options, including A-section, B-section, C-section, D-section, 3V-section, 5V-section, 8V-section, variable pitch, double groove, and metric pulleys. We stock over 8,000 SKUs of different V-belt pulleys alone!
How To Measure A V-Belt Pulley
Step 1: First, measure the outside diameter (OD) of the pulley.
Step 2: Next, measure the pitch diameter (PD). This measurement represents the diameter of the belt itself as it rides in the pulley. This step is not necessary if you already know your V-belt size or if the pulley and belt are significantly worn.
Step 3: Measure the wall thickness of the pulley.
Step 4: Measure the overall width of the belt housing, where the belt actually rides in the pulley.
Step 5: If the pulley has a hub extending past the "belt housing" width it is typically a best practice to measure the extension of the hub.
Step 6: The final measurement is the complete overall width of the pulley. This will in most cases designate the belt-type or series used.
Where Are V-Groove Casters Commonly Used?
While V-Grooves may seem intended for a highly specific industrial use, there are more to these casters than meets the eye. Even if you aren't working in a track environment, these casters can be used in a variety of other settings. The solid caster design and metal wheels of these casters make them capable of stabilizing and supporting heavy loads, without generating a lot of weight themselves.
V-groove casters are widely used in small business industrial environments for all kinds of equipment such as rolling saw mills, ovens, ventilation equipment, measurement equipment etc., to roll tracks. They are also utilized by private consumers for a range of applications, such as rolling, sliding gates.
Since they are modeled after the traditional rail car wheel, these casters can be used transporting units on steel raised or iron tracks. Boasting metal wheels, with some utilizing a polyurethane tube or inset rubber, these casters can also be used off the track without marking up the floorings or compromising the integrity of the metal wheel. Since the design of the v-groove separates a single wheel into two wheels, you can get all the advantages of the two-wheeled caster and its use in various applications.
Besides offering self-cleaning, the v-groove also offers improved handling in wet hazards. This can prove extremely useful, in case you are transporting extremely fragile items. The flexibility of travelling between a grooved and flat rail can also be a huge cost saving investment, especially if you need the trolley to work in both places.
V-Groove casters can also be used in heavy-duty assembly line plants where high temperature soldering and welding is done. Or it can be used in food processing, car manufacturing, or any other type of building that results in extreme heat. Because they hold up so well in rough conditions and heat, V-Groove casters are a highly economical option in a variety of industries.
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Our company has strong technical strength,strict quality process control, perfect production and testing equipment.Concentrate on quality and service-orentied .We are willing to cooperate with friends all over the world, create the glorious future.

FAQ
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