Belt Sprockets

Custom Belt Sprockets for Timing Belt and Synchronous Belt Drive Systems

Conxu supplies belt sprockets for industrial timing belt and synchronous belt drive systems where accurate tooth engagement, stable rotation, and reliable belt-sprocket matching are required. For distributors, wholesalers, OEM equipment manufacturers, engineering companies, and industrial brands, Conxu supports standard sprocket series, custom bore processing, material selection, surface treatment, drawing-based machining, and long-term batch supply.

Key Purchase Value

Belt sprockets for synchronous belt and timing belt systems
Profile matching for trapezoidal, HTD, STD / STS, RPP, RHP, T, AT, and GT drive systems
Custom bore, keyway, flange, hub, material, and surface treatment options
Source factory supply for OEM projects, distributors, wholesalers, and industrial buyers

Confirm the Belt System Before Selecting Belt Sprockets

Belt sprockets are not selected by outside appearance alone. In industrial synchronous transmission, the first question is whether the sprocket can correctly match the belt profile, belt pitch, tooth count, belt width, shaft structure, and drive layout.

Belt Profile Matching

The sprocket tooth profile must match the timing belt or synchronous belt profile. HTD, STD / STS, RPP, RHP, T, AT, GT, and trapezoidal systems are not automatically interchangeable.

Pitch and Tooth Count

Pitch and tooth count affect speed ratio, pitch diameter, belt engagement, and machine space. For replacement demand, the old sprocket marking, belt marking, or sample photos can reduce selection errors.

Belt Width Compatibility

The sprocket face width should match the belt width and installation requirement. For OEM machinery, belt width and flange design should be confirmed before batch production.

Bore and Mounting

Bore size, keyway, set screw position, hub design, and shaft fit affect installation stability. Drawing-based confirmation is recommended for non-standard belt sprockets.

Selection Tip

Use the belt to define the sprocket tooth system first. Then confirm tooth count, pitch, belt width, bore, hub style, material, surface treatment, and drawing requirements.

Belt Sprocket Types for Different Installation Layouts

Different equipment layouts require different sprocket forms. The sprocket type affects shaft support, installation space, belt guiding, and machining direction.

Type A Belt Sprocket

A simple sprocket form for compact drive layouts where hub extension is not required. It is suitable when the machine has limited space and the pulley structure can remain relatively light.

Type B Belt Sprocket

A sprocket with hub support on one side. It is commonly selected when the shaft connection needs better support or when bore and keyway machining requirements are more important.

Type C Belt Sprocket

A sprocket form used when additional hub structure or stronger mounting stability is needed. It may be selected for drive systems where load support and shaft installation are more demanding.

Type W Belt Sprocket

A sprocket form used for specific machine layouts or drawing-based custom designs. Buyers should provide drawings or samples when selecting this type.

Buyer’s Note

Sprocket type should be confirmed together with shaft position, installation space, bore size, hub direction, flange design, and belt width.

Belt Sprocket Series for Timing Belt Matching

Belt sprockets should be organized by the belt system they support. This helps buyers quickly judge whether the product can match existing machines, distributor stock demand, or OEM equipment design.

Trapezoidal Belt Sprockets

Available directions include MXL, XL, L, H, XH, and XXH. These are used for classic trapezoidal timing belt systems, replacement demand, distributor stock, and traditional synchronous drive equipment.

HTD Belt Sprockets

Available directions include 2M, 3M, 5M, 8M, 14M, and 20M. HTD belt sprockets are used where stronger tooth engagement and stable torque transmission are required.

STD / STS Belt Sprockets

Available directions include S2M, S3M, S4.5M, S5M, S8M, and S14M. These are selected for systems requiring STD or STS belt profile matching and smooth synchronous engagement.

RPP Belt Sprockets

Available directions include P3M, P5M, P8M, and P14M. RPP belt sprockets are used in industrial drive systems where stable engagement and replacement compatibility matter.

RHP Belt Sprockets

Available directions include RHP8M and RHP14M. These are selected when the machine uses an RHP synchronous belt system and requires matched sprocket engagement.

T and AT Belt Sprockets

T series may include T2.5, T5, T10, T10.5, and T20. AT series may include AT5, AT10, and AT20. These are often used in positioning systems, automation equipment, and linear motion mechanisms.

GT Belt Sprockets

Available directions include 2GT, 3GT, 5GT, 8GT, 8YU, and 14MGT. GT belt sprockets are used where smooth engagement, motion accuracy, and belt compatibility are important.

Do not treat sprocket shape and belt profile as the same thing. The belt profile decides tooth matching; the sprocket type decides installation structure.

How to Read a Custom Belt Sprocket Specification

A clear belt sprocket specification helps reduce communication time and improves matching accuracy. Conxu can review drawings, samples, old sprocket photos, or belt information to confirm the correct production direction.

Example Format

30-8M-30AF-50-AL-O

Number of Teeth

The first number indicates the sprocket tooth count. Tooth count affects speed ratio, pitch diameter, belt engagement, and machine layout.

Belt Profile or Pitch System

The profile section, such as 8M, shows which timing belt or synchronous belt system the sprocket is designed to match.

Belt Width and Sprocket Form

The width and form code help confirm whether the sprocket supports the required belt width and installation structure.

Sprocket Thickness

Thickness should match installation space, belt width, hub requirement, and drive load.

Material Code

Material affects strength, weight, corrosion resistance, machining performance, and cost.

Surface Treatment

Surface treatment supports appearance, corrosion resistance, wear behavior, or application requirements.

Quotation Tip

For faster quotation, provide tooth count, belt profile, belt width, bore size, sprocket type, thickness, material, surface treatment, keyway requirement, flange requirement, drawing, and quantity.

Material Options for Belt Sprockets

Material selection should match load, speed, shaft connection, corrosion risk, weight requirement, and cost target. The correct material helps improve installation reliability and long-term transmission stability.

45# Steel

Suitable for applications requiring higher strength and stable mechanical performance. Steel belt sprockets are often used in industrial transmission systems where load support and durability matter.

Aluminum Alloy

Suitable for equipment requiring lighter weight, good machinability, and flexible surface treatment. Aluminum alloy sprockets are commonly used in automation equipment, machinery manufacturing, and custom drive systems.

Stainless Steel

Suitable for environments where corrosion resistance or cleaner operation is more important. Stainless steel may be selected for moisture exposure, cleaning environments, or stricter working conditions.

Cast Iron

Suitable for some heavier-duty or traditional industrial applications where weight, strength, and cost balance should be considered.

Nylon

Suitable for lightweight systems, lower noise requirements, or applications where a plastic sprocket is acceptable. Buyers should confirm load, speed, and working environment before selection.

Brass

Suitable for special custom applications where brass material properties are required. Drawings or samples are recommended when choosing brass belt sprockets.

Material should not be selected only by price. Shaft load, speed, corrosion risk, weight requirement, machining accuracy, and operating environment should be reviewed together.

Surface Treatment Options

Surface treatment helps improve sprocket surface condition, corrosion resistance, appearance, and application suitability. The correct option depends on material, machine environment, and customer requirements.

Ordinary Oxidation

Commonly used for aluminum alloy belt sprockets requiring basic surface protection and appearance treatment.

Sandblasted Oxidation

Used for aluminum sprockets requiring a more textured surface appearance or improved visual finish.

Bright Oxidation

Used when buyers require a brighter aluminum surface while maintaining oxidation treatment.

Color Oxidation

Used for aluminum sprockets requiring color differentiation, brand matching, or visual identification in equipment.

Blackening

Commonly used for 45# steel sprockets where black surface treatment is required.

Zinc Plating

Used for steel sprockets when additional surface protection is needed.

Hard Anodizing

Used for aluminum alloy sprockets requiring stronger surface hardness and improved wear resistance.

Nickel Plating

Used when buyers need nickel-plated surface treatment for specific protection, appearance, or application requirements.

Selection Tip

Surface treatment should be confirmed together with material. Not every treatment is suitable for every sprocket material.

Custom Machining for OEM Belt Sprockets

Many belt sprocket projects require more than a standard catalog part. OEM equipment manufacturers, engineering companies, and brand customers often need custom dimensions, bore structures, materials, and surface treatments.

Custom Bore Processing

Bore size can be produced according to shaft requirements. Buyers should provide bore diameter, tolerance, shaft fit, and whether the bore is pilot bore or finished bore.

Keyway Machining

Keyway dimensions should follow shaft design. For OEM equipment, drawing-based confirmation is recommended.

Set Screw Position

Set screw requirements can be discussed according to installation method and torque transfer needs.

Flange Options

Flanges help guide the timing belt and reduce side movement in suitable drive systems. The need for one flange, two flanges, or no flange should be confirmed according to belt tracking and machine layout.

Hub Structure

Hub form affects shaft support, installation space, and machining method. Buyers should confirm whether the sprocket needs a hub and which side requires support.

Drawing-Based Customization

For non-standard belt sprockets, drawings are the best way to confirm dimensions, tooth count, bore, keyway, material, surface treatment, flange, and tolerance requirements.

For custom belt sprockets, send a drawing whenever possible. A sample, old sprocket photo, belt marking, or machine photo can also help Conxu review the production direction.

Application Scenarios for Belt Sprockets

Belt sprockets are used in industrial equipment where toothed belt engagement is needed for controlled transmission, accurate positioning, and synchronized motion.

Automation Equipment

Used in transfer systems, positioning units, indexing devices, and compact mechanical drive layouts where belt-sprocket matching accuracy is important.

Packaging Machinery

Used in feeding, timing, conveying, sealing, cutting, and synchronized movement sections. Stable engagement helps reduce timing deviation and maintenance risk.

Textile Machinery

Used in transmission systems requiring repeated operation, synchronized motion, and stable replacement supply. Consistent belt-sprocket matching supports long-term equipment maintenance.

Printing Equipment

Used in systems where motion accuracy and smooth running affect production consistency. Buyers should pay attention to belt profile, sprocket machining, and belt compatibility.

Logistics and Handling Systems

Used in sorting, transfer, reciprocating movement, and controlled drive systems. Sprocket selection should be based on belt type, load, shaft layout, and installation environment.

OEM Machinery Manufacturing

Used in new machine design and batch production. OEM buyers usually need stable drawing confirmation, repeat supply, and consistent machining standards.

Application does not replace specification. Even in the same industry, the correct belt sprocket still depends on belt profile, tooth count, bore, material, and machine layout.

Supply Support for Different B2B Buyers

Different B2B buyers evaluate belt sprockets from different angles. A reliable supplier should support belt matching, custom machining, quality control, and stable supply.

For Distributors

Distributors need broad coverage for common belt sprocket profiles, replacement demand, and mixed customer inquiries. Conxu supports belt sprockets for multiple timing belt and synchronous belt systems, helping distributors respond to different industrial customers.

For Wholesalers

Wholesalers care about repeatable supply, consistent specifications, and flexible cooperation. Stable sprocket production helps wholesalers build reliable product lines for industrial transmission customers.

For OEM Equipment Manufacturers

OEM manufacturers need sprocket dimensions, bore, keyway, material, and surface treatment to remain consistent after sample confirmation. Conxu supports drawing-based production and future batch cooperation.

For Engineering Companies

Engineering companies often need to solve machine problems such as belt mismatch, tracking issues, wear, shaft fit, or installation limitations. Conxu can review drawings, samples, sprocket photos, and application conditions.

For Brand Customers

Brand customers may require logo, packaging, product consistency, and long-term supply planning. Custom cooperation can be discussed according to project requirements.

What to Provide for a Faster Belt Sprocket Quotation

A clear inquiry helps reduce communication time and improves matching accuracy.

Why Choose Conxu

Belt-Sprocket Matching Support

Conxu understands belt sprocket selection from the complete synchronous drive system, helping buyers match belt profile, sprocket width, tooth count, bore, and machine requirements.

Multiple Series Coverage

Conxu supports sprocket directions for trapezoidal, HTD, STD / STS, RPP, RHP, T, AT, and GT belt systems, helping buyers cover different industrial transmission requirements.

Custom Machining Capability

Conxu can support drawing-based sprocket customization, including bore size, keyway, hub structure, flange requirements, material selection, and surface treatment.

Source Factory Supply

As a source factory supplier for industrial transmission products, Conxu supports stable production communication, specification control, and long-term cooperation.

Quality Control Process

Conxu focuses on raw material inspection, production monitoring, finished product inspection, and pre-shipment checking to support consistent batch supply.

Global B2B Experience

Conxu serves customers in more than 100 countries and regions, supporting distributors, wholesalers, OEM equipment manufacturers, engineering companies, and industrial brands.

OEM & ODM Support

Conxu provides OEM and ODM support for belt sprocket projects that require custom dimensions, drawing-based production, private label cooperation, or long-term batch supply.

Custom Dimensions

Tooth count, sprocket width, bore size, thickness, hub structure, and flange design can be discussed according to drawings, samples, or machine requirements.

Custom Materials

Material options may include 45# steel, aluminum alloy, stainless steel, cast iron, nylon, brass, or other project-specific material directions.

Custom Surface Treatment

Surface treatment can be selected according to material and application needs, including oxidation, blackening, zinc plating, hard anodizing, nickel plating, and color oxidation.

Drawing and Sample Support

Customers can provide technical drawings, old sprocket samples, machine photos, belt markings, or shaft details for evaluation.

Logo and Packaging

For brand customers, distributors, and wholesale partners, logo and packaging requirements can be discussed according to cooperation needs.

Long-Term Batch Supply

For OEM equipment manufacturers and regular distributors, Conxu can support sample confirmation, specification locking, and repeat production planning.

FAQ

Are belt sprockets the same as timing pulleys?

In many timing belt and synchronous belt applications, buyers may use belt sprockets to refer to toothed pulleys that mesh with timing belts. In Conxu’s product context, belt sprockets refer to timing belt sprockets or synchronous belt pulleys, not chain sprockets.