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TIMING beltand pulleys
TIMING beltand pulleys
This document serves as an instruction manual for the safe use of timing belts and pulleys, emphasizing the importance of thoroughly reading the belt catalog and instructions to ensure correct handling and safety.
- Danger: Incorrect handling may lead to imminent death or serious injury.
- Warning: Incorrect handling could possibly result in death or serious injury.
- Caution: Incorrect handling may cause personal injury or material damage.
Timing belts should not be used as harnesses, tow ropes, or insulators. They must comply with specific laws when in contact with food and should not be used outside indicated tolerances.
Belts should be free from water, oil, chemicals, and dust to prevent deterioration. Noise insulation may be necessary during high-speed operations.
Belts should be stored at temperatures between -10℃ and +40℃, away from direct sunlight. Heavy belts require appropriate transportation equipment.
Safety covers should be installed over rotating parts. Proper tension and alignment are crucial to prevent premature breakage. Regular inspections and proper maintenance are necessary.
The warranty covers 18 months after shipment or 12 months after first use, whichever is shorter. It excludes issues arising from improper use, maintenance, or external factors.
The document details various belt types, including PX BELT, ULTRA PX BELT, and SHINAYAKA 530, highlighting their unique features such as high precision, low noise, and high-speed capabilities. Specific types are designed for oil-proof and water-proof applications.
Includes belt tooth profiles, dimensions, materials, and installation tension recommendations. Transmission capacity tables and pulley specifications are also provided.
The document provides detailed specifications for PX belts, including materials such as chloroprene rubber, nylon fabric, and fiberglass cords. The belts are designed for a temperature range of -15℃ to +80℃ and are not conductive, oil-proof, or waterproof. They comply with the RoHS Directive.
The document lists various belt types, including P2M, P3M, P5M, P8M, and P14M, with specific belt lengths and the corresponding number of teeth. Each type has its own set of dimensions and installation tension values.
Pulley dimensions are provided for different numbers of teeth, including pitch circle diameter and flange outer diameter. The document specifies that bold font indicates stock items, while fine font indicates items made to order with a short lead time.
Tables are included for transmission capacity and recommended installation tension values for different belt widths. The document provides weight per meter and width factors for each belt type.
Model identification codes are explained, detailing the structure of the code, including belt width, pitch length, and type.
- The belts are not suitable for use in oil or water environments.
- The document emphasizes compliance with the RoHS Directive.
- Various belt types are available, each with specific applications and dimensions.
- Belt Tooth Profile and Dimensions: Detailed specifications for various belt models, including tooth profile and dimensions.
- Model Identification: Example model numbers and their components, such as belt width, pitch length, and type.
- Materials: High-intensity synthetic rubber, wear-resistant fabric, and high-intensity fiberglass cord.
- Specifications and Characteristics: Includes transmission capacity tables, selection and design guidelines, and pulley specifications.
- Installation Tension: Recommended maximum values for different belt widths.
- Environmental Suitability: Oil and water-proof capabilities, with a temperature range of 0℃ to 60℃ in oil environments.
- Belt Tooth Profile and Dimensions: Similar structure to the oil-proof type, with specific model identification and dimensions.
- Materials: High-intensity chloroprene rubber, wear-resistant fabric, and a hybrid of carbon fiber and high-intensity fiberglass.
- Specifications and Characteristics: Includes pulley specifications and installation tension values.
- Environmental Suitability: Not suitable for oil or water environments, with a temperature range of -15℃ to +80℃.
- RoHS Compliance: All belt types comply with the RoHS directive.
- Custom Orders: Belts are made to order with short lead times, and lot sales items are available upon inquiry.
- Pulley Dimensions: Reference dimensions for various pulley sizes and configurations.
- Tsubaki Belt Clamp: A standard stock product for fixing work to belts, available immediately upon order.
The document provides detailed specifications for the ULTRA PX BELT HC TYPE, including transmission capacity and torque for various belt widths (15 mm, 40 mm, etc.). It includes tables showing standard transmission capacities and torque values, with width factors for different belt sizes.
The Tsubaki belt tension meter "T-ACE" is highlighted as a tool for accurately measuring belt tension using sound wave technology. Key features include its lightweight design, large LCD screen, memory function for up to 10 conditions, unit display changeover between "N" and "Hz", and an auto power-off function.
The document outlines methods for selecting timing belts based on power, torque, and inertial load. It provides correction factors for load, idler use, speed increase, and start-stop frequency. The selection process is supported by Tsubaki's online design support services.
Tables are provided for various correction factors, including load correction, idler use, speed increase, and start-stop frequency. These factors are essential for adjusting belt selection to specific operational conditions.
The document includes a comprehensive list of formulae for calculating belt speed, tension, power, torque, and other parameters essential for belt and pulley design. It emphasizes the importance of maintaining proper belt tension and pulley balance to ensure optimal performance and longevity.
- Motor output, revolution, and shaft diameter.
- Type and revolution of the driven machine.
- Center distance, hours of use, and frequency of start-stop per day.
- Speed ratio and use or nonuse of idler.
- Other conditions such as layout restrictions.
- Design power (Pd) is calculated using transmission power (Pk) and various correction factors: load (Ko), idler use (Ki), speed increase (Ks), start-stop frequency (Ka), and operation environment (Ke).
- Formula: Pd = Pk × (Ko + Ki + Ks) × Ka × Ke.
- Select a belt size based on design power and small pulley revolution using simplified selection tables.
- Select belt width and number of teeth for the small pulley from standard transmission capacity tables, ensuring compatibility with shaft diameter and pitch circle diameter.
- Determine the number of teeth for the large pulley based on speed ratio and verify bore diameter.
- Calculate approximate belt length (L') and select the closest belt type.
- Calculate center distance (C) using selected belt length.
- Ensure the number of meshing teeth is 6 or more; if less, apply a correction factor.
- Engagement angles for drive and idler pulleys should be 120° or more and 90° or more, respectively.
- Verify that the belt width satisfies the design power or torque requirements using correction factors for meshing and belt length.
- Design torque (Pt) is calculated similarly to design power, using transmission torque (Pm) and correction factors.
- Formula: Pt = Pm × (Ko + Ki + Ks) × Ka × Ke.
- Examples provided for selection based on power and inertial load, detailing the step-by-step process and calculations involved.
- Correction factors for load, idler use, speed increase, start-stop frequency, and operation environment are provided in tables on page 42.
- Standard transmission capacity and torque tables are referenced for selecting belt width and pulley teeth.
Catalog excerpts
Instruction Manual For safe use of timing belts and pulleys In order to ensure correct handling of the products, please make sure to read the belt catalog and instructions thoroughly upon use paying close attention to the items below, which have been classified according to the degree of influence on safety. Danger Warning Caution When it is assumed that death or serious personal injury is imminent as a result of incorrect handling. When it is assumed that death or serious personal injury is possible as a result of incorrect handling. When it is assumed that there is a risk of personal injury...
Open the catalog to page 4
Warranty 1. Warranty period without charge Our company warrants the product free of charge for 18 months after shipment from our factory and 12 months after the product is used first (reckoned from the date of assembly of the product in customer’s equipment), whichever shorter. However, charges may be incurred, depending on conditions. 2. Warranty range If any problems are found in the product within the warranty period and our company confirms that the customer has carried out proper installation, operation, maintenance, and control of the product in accordance with the catalog, manuals, and...
Open the catalog to page 5
Over view Features As a mechanism of engaged-drive, timing belts realize precision drive with only little belt elongation. Compared to other power transmission elements such as gears, timing belts offer low-noise and smooth drive. Timing belts are lube-free allowing a clean drive without spillage or contamination. Timing belts can transmit power efficiently with minimal energy loss. Timing belts can be operated at high-speed compared to other power transmission parts such as gears. ■ Backing ：Durable and wear-resistant rubber （High Intensity Synthetic rubber） ■ Cord：Fiberglass with very minimal...
Open the catalog to page 6
PRODUCT Line-Up［ 1 ］ PX BELT Compared to the trapezoidal belt, the performance of TSUBAKI PX belt is improved sharply through the adoption of a unique tooth contour. Moreover, there is an abundance of sizes available in the line-up to suit a variety of applications. Features ■ Ideal tooth engagement The unique contour of the teeth enables high torque drive.Transmission capacity is about 1.6 times that of the trapezoidal belt. ■ High jumping torque Large belt teeth provide high jumping torque capabilities. Low-noise drive is made possible by the adoption of a unique dimple on the tooth ends....
Open the catalog to page 7
Features of Ultra PX Belt HC Type High precision Halved operation elongation improves the transmission accuracy, which improves the precision of the equipment and eliminates the need for a belt tension re-adjustment. High strength The transmission capability is twice or more as high as the conventional PX belts. The belt width or the number of teeth of pulley can be reduced, allowing for a space-saving design. Ultra PX Belt HC Type Operation time & belt elongation Twice or more Transmission capability (kW) Belt elongation Minimized operation elongation Ultra PX Belt HC Type Comparison of transmission...
Open the catalog to page 8
PRODUCT Line-Up［ 2 ］ OPEN-ENDED BELT Features ■ Suitable for reciprocating movement, such as a cart drive or the opening/closing of a door. ■ Long-span drive is available. ■ ULTRA PX belt has also been added to the line-up, so high-torque drive is now possible. P2M （Belt pitch P3M、UP3M-HC（Belt pitch P5M、UP5M-HC（Belt pitch P8M、UP8M-HC（Belt pitch SHINAYAKA 530 BELT Features ■ SHINAYAKA 530 belt is suitable for clean drives, as there is very minimal wear dust generated from the belt. ■ SHINAYAKA 530 belt is flexible enough that initial tension can be set at a low level and axial load can...
Open the catalog to page 9
PRODUCT Line-Up［ 3 ］ ULTRA PX BELT OIL-PROOF TYPE PATENTED : JP,US,DE,GB,FR,IT Oil-proof type belt developed based on the high-performance belt ultra PX belt HC type Oil-proof rubber is used for the belt. Even in conditions subject to oil splashes, the physical properties of the belt are hardly reduced. The belt can be used in conditions subject to oil splashes. ■ High strength and high precision This belt features equivalent transmission capability to the ultra PX belt HC type. Besides, it features very little operation elongation, allowing high-precision transmission. *Resistance for all...
Open the catalog to page 10
PRODUCT Line-Up［ 4 ］ PX BELT WATER PROOF TYPE Belt most suitable for use in wet environment. ■ Most suitable for use in wet environment This belt can be used in wet environment where conventional timing belts cannot be used. It can be used in machines that are washed by water. When this belt is used, the waterproof cover can be simplified. ■ Clean, low noise and high precision This is a timing belt and thus produces less noise than other drive elements and provides cleaner drive. No lubrication is required. ■ PX standard pulleys can be used Since the PX tooth profile is employed, this can be...
Open the catalog to page 11
Belt Types and Dimensions P2M（P : 2 mm） ■ Belt Tooth Profile and Dimensions 2.00 Rubber belt Rubber : Chloroprene rubber Oil proof, Water proof : No ( Unusable ) Fabric : Nylon fabric (Low dust specification) Temperature Range : -15℃～ +80℃ RoHS Directive : Compliance Cord : Fiberglass ■ Belt Width / Width Factor / Unit Mass / Installation Tension Belt width mm Belt width factor Installation Tension N｛kgf｝ Max. Value Transmission Capacity Tables Belt length Belt length Belt length Belt length ・Bold Font : Stock item Fine Font : Made to order, but in short lead time. mm No. Pitch Flange of teeth...
Open the catalog to page 12
Belt Types and Dimensions P3M（P : 3 mm） ■ Belt Tooth Profile and Dimensions 3.00 ■形番表示例 ■ Model Identification Rubber belt Pitch length mm Rubber : Chloroprene rubber Fabric : Nylon fabric (Low dust specification) Temperature Range : -15℃～ +80℃ RoHS Directive : Compliance Oil proof, Water proof : No ( Unusable ) Cord : Fiberglass ■ Belt Width / Width Factor / Unit Mass / Installation Tension Belt width mm Belt width factor Installation Tension N｛kgf｝ Recommended Transmission Capacity Tables ・Bold Font : Stock item Fine Font : Made to order, but in short lead time. mm No. Pitch Flange of teeth...
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