Timken Overview
Timken is a global leader in designing, manufacturing, and marketing high-performance mechanical components such as bearings, gears, and chains. The company aims to enhance machinery reliability and performance across various industries worldwide.
Products and ServicesTimken offers a wide range of friction-management products and services, including various types of bearings (tapered, cylindrical, spherical, thrust, and
ball bearings), housed units, and precision roller chains. They also provide high-performance
bearing solutions like corrosion-resistant and debris-resistant bearings, along with power transmission components such as seals and couplings.
Innovation and Customer Support
Timken operates technology centers globally to develop innovative products and solutions, emphasizing technical leadership and customer support. They offer engineering expertise and manufacturing capabilities to enhance equipment performance and uptime.
Maintenance Tools and Services
Timken provides maintenance tools to extend bearing life and simplify maintenance practices, including induction heaters and hydraulic pullers. They also offer remanufacturing and repair services for bearings and gearboxes to improve plant efficiency and reduce production costs.
Key Features and Benefits- High-quality products and services with global consistency.
- Custom solutions for harsh environments and specific applications.
- Advanced research and development for future innovations.
- Comprehensive maintenance and repair services to enhance equipment longevity.
Training Programs
Timken offers industry-specific training programs for plant professionals, including onsite customized training. These programs are available globally and cover all phases of bearing performance in metal-making environments, combining classroom learning with hands-on training and facility tours.
Lubricants and Lubrication Systems
Timken provides lubricants and lubrication systems to enhance performance and productivity. Their products include 27 grease formulations and automated lubrication delivery systems that ensure precise grease application, reducing manual effort and costs.
Catalog Usage and Specifications
The catalog is designed to help users find suitable Timken bearings for metals industry applications. It includes product tables, dimensions, tolerances, load ratings, and engineering sections on fitting practices, internal clearances, and materials. The catalog adheres to ISO and ANSI/ABMA standards.
Shelf Life and Storage Guidelines
Timken provides guidelines for the shelf life of grease-lubricated bearings and components. Shelf life is distinct from design life and depends on storage conditions. Products should be stored in original packaging, in a controlled environment with specific temperature and humidity levels, and free from contaminants.
Warnings and Compliance
Timken emphasizes proper maintenance and handling practices to avoid risks. Products are subject to various regulatory standards, including European REACH compliance. Users are advised to consult Timken engineers for product suitability and compliance information.
Popular Bearing Types in the Metals Industry
The catalog lists various bearing types used in metals applications, including cylindrical roller bearings, needle roller bearings, spherical roller bearings, and tapered roller bearings. Each type is designed for specific applications, such as continuous casting and rolling mill stands, with detailed compositions and applications provided.
Thrust Bearings Overview- TSR Composition: Single inner ring with spherical rollers and cage retainer, single outer ring.
- Applications: Used in thrust positions for flat and long product mills, gearboxes, and auxiliary equipment.
TDIK Composition:- Double cone with tapered rollers, two single cups, with or without spacer.
- Applications: Backup and work roll thrust positions for flat and long product mills.
Thrust Tapered Roller Bearings:- Includes models like TTdflk, TTdW, and TTdWk, designed for heavy-duty flat product mills with axial shift and long product mills.
Engineering and Specifications- Timken bearings are suitable for various speeds, radial and thrust loads, and harsh metal industry applications.
- Key dimensions include bore (d), outside diameter (O.d.), and bearing width (B).
- Bearings are manufactured to specific tolerances, with differences between inch and metric systems.
Bearing Tolerances- Specifications and classes for tapered, cylindrical, and spherical roller bearings are detailed, with tables summarizing boundary dimension tolerances.
- Inner and outer ring tolerances for spherical, cylindrical, needle, and ADAPT™ bearings are provided, with specific deviation values listed.
Tables and Figures- Tables provide detailed tolerances for various bearing types, including bore, width, and outside diameter deviations.
- Figures illustrate different bearing types and their components.
Additional Information- For comprehensive engineering data, customers are directed to the Timken engineering manual and website.
Overview: This document is a technical catalog from Timken® Metals, focusing on engineering specifications for radial and thrust tapered roller bearings, both in metric and inch measurements. It provides detailed tolerance tables for various bearing dimensions, including outside diameter, bore, and width.
1. Bearing Tolerances:- Radial Tapered Roller Bearings: The document outlines tolerances for cup outside diameter and cone width in metric measurements. Tolerances vary based on the bearing size, with specific maximum and minimum limits provided for each range.
- Thrust Tapered Roller Bearings: Tolerances for bore, width, and outside diameter are detailed for both inch and metric bearings. The tables specify the permissible deviations for different bearing types and sizes.
2. Fitting Guidelines:- Introduction: Proper fitting is crucial for bearing performance. The guidelines depend on application type, precision class, load direction, and other factors. The document provides a graphical representation of shaft and housing fit selection.
- Spherical, Needle, and ADAPT™ Roller Bearings: Specific fitting practices for continuous caster equipment are discussed, with tables detailing inner and outer ring fitting practices. The document notes the importance of tight and loose fits depending on the application.
3. Key Tables:- Table 17: Tolerances for tapered roller bearing cup outside diameter (metric).
- Table 18: Tolerances for cone width (metric).
- Table 19: Overall bearing width tolerances for TdiT and Tdik types (metric).
- Table 23-27: Tolerances for thrust tapered roller bearings in both inch and metric measurements, covering bore, width, and outside diameter.
- Table 28-29: Fitting practices for spherical, needle, and ADAPT roller bearings, focusing on continuous caster equipment.
Conclusion: The document serves as a comprehensive guide for engineers and technicians involved in the selection and fitting of tapered roller bearings, providing essential tolerance data and fitting guidelines to ensure optimal bearing performance.
Overview: This document is a technical catalog from Timken® Metals, detailing various types of bearings, their specifications, and applications. It includes tables of radial internal clearance limits for different bearing types, such as spherical roller bearings, needle roller bearings, cylindrical roller bearings, and ADAPT™ bearings.
Spherical Roller Bearings: These bearings are used in high-load applications like continuous caster support rolls and gearboxes. They are available in sizes ranging from 25 mm to 1500 mm bore. The document provides detailed nomenclature and modification codes for these bearings, including standard features like lube grooves and heat stabilization treatments.
Needle Roller Bearings: The document lists radial internal clearance limits for needle roller bearings with cylindrical bores, specifying minimum and maximum clearances for various bore sizes.
Cylindrical Roller Bearings: Similar to the other types, this section provides clearance limits for cylindrical roller bearings, detailing the minimum and maximum clearances for different bore sizes and clearance classes (C0, C3, C4).
ADAPT™ Bearings: These bearings are designed for applications requiring both radial and axial load support. The document specifies clearance limits and provides details on the bore sizes and corresponding clearances.
Key Tables: The document includes several tables that outline the radial internal clearance limits for each bearing type, providing essential data for engineers to select the appropriate bearing for their application.
Applications and Recommendations: The catalog emphasizes the importance of selecting the correct bearing type and clearance for specific applications to ensure optimal performance and longevity. It also highlights the advanced geometry of Timken® bearings that reduces friction and heat generation.
Overview: The document is a technical catalog from Timken, focusing on various types of bearings, including spherical roller bearings, heavy-duty needle roller bearings, and ADAPT™ bearings. It provides detailed specifications, dimensions, load ratings, and installation guidelines for each bearing type.
Spherical Roller Bearings: - Specifications: Includes dimensions such as bore diameter, outer diameter, and width. Load ratings are provided in both dynamic and static conditions.
- Key Parameters: Fillet radius, backing diameter, and equivalent radial load factors are specified. Geometry constant for lubrication life factor is also mentioned.
- Usage Instructions: Refer to the Timken engineering manual for detailed usage instructions and geometry constants.
Heavy-Duty Needle Roller Bearings: - Application: Designed for continuous caster bender support rolls with special clearances and heat-treatment stabilization.
- Nomenclature: Includes special radial internal clearance and stabilization codes for high-temperature operations.
- Specifications: Detailed dimensions and load ratings are provided, including bore diameter, outer diameter, and axial displacement capabilities.
ADAPT™ Bearings: - Design Features: Full-complement roller bearing designed for continuous caster support rolls, offering high-radial load capacity and misalignment capabilities.
- Installation Notes: Emphasizes the importance of proper handling and installation to prevent the inner ring from sliding out. End plate geometry must be validated for correct installation.
- Specifications: Conforms to ISO dimensions with unique internal geometry. Provides details on bore diameter, outer diameter, and axial displacement.
General Recommendations: - Always follow installation instructions and maintain proper lubrication to ensure optimal performance and safety.
- Consult the Timken engineering manual for detailed guidance on usage and installation procedures.
Overview: This document is a technical catalog from Timken® detailing specifications and data for four-row cylindrical roller bearings. These bearings are primarily used in work roll or backup roll positions in various mills and are designed for high radial capacity.
Specifications: The document provides detailed specifications for different bearing models, including dimensions such as bore diameter, outer diameter, inner and outer ring widths, and diameter under rollers. It also includes dynamic load ratings and part numbers for each bearing type.
Modification Codes: Various modification codes are listed, such as W33 for lubrication holes and grooves on outer rings, W30B for removal face slots on inner rings, and W2 for two-piece inner rings. These codes help customize bearings for specific applications.
Clearance Codes: The document outlines radial internal clearance codes (C2, C0, C3, C4, C5) and special clearances (C6, C7, C8, C9) according to ISO 5753 standards. These clearances are crucial for ensuring proper bearing function under different operational conditions.
Design Types: Several design types are described, including RY and RYL series with solid brass or steel cages, and RX series with rib rings and pin-type steel cages. Each design type is tailored for specific mounting conditions and operational requirements.
Lubrication and Mounting: The document provides information on lubrication grooves, face slots, and mounting dimensions. It emphasizes the importance of proper lubrication and mounting to ensure optimal bearing performance and longevity.
Tables and Figures: Numerous tables and figures illustrate bearing dimensions, load ratings, and assembly nomenclature, providing a comprehensive reference for selecting the appropriate bearing for specific applications.
Overview: The Timken Metals Product Catalog provides detailed information on tapered roller bearings, focusing on nomenclature, part-numbering systems, and specific bearing designs. It is a comprehensive guide for understanding the specifications and applications of Timken's bearing products.
Nomenclature: The catalog outlines the nomenclature for tapered roller bearings, including series prefixes, angularity designators, basic series indications, component designators, and modification suffixes. These elements are crucial for identifying the specific characteristics and applications of each bearing type.
Part-Numbering Systems: The document details both metric and inch part-numbering systems. The metric system uses a J-line format, while the inch system follows the ABMA standard. Each system includes specific codes for series, angularity, and component designations.
Prefix and Suffix Designations: Table 52 provides a comprehensive list of common prefix and suffix designations, explaining their meanings and applications. These designations indicate variations in bearing design, such as different dimensions, internal geometry, or special features.
Four-Row Tapered Roller Bearings: The catalog describes the design and application of four-row tapered roller bearings, which are engineered for high-radial and axial load capacities in rolling mill applications. Various design types, such as TQOW and 2TDIW, are explained, highlighting their components and configurations.
Technical Specifications: Detailed tables provide technical specifications for various bearing types, including dimensions, load ratings, and dynamic factors. These specifications are essential for selecting the appropriate bearing for specific industrial applications.
Conclusion: The Timken Metals Product Catalog is an essential resource for understanding the detailed specifications and applications of tapered roller bearings. It provides comprehensive information on nomenclature, part-numbering systems, and specific bearing designs, making it a valuable tool for engineers and industry professionals.
Overview: This document is a technical catalog from Timken® Metals, focusing on tapered roller bearings, specifically four-row tapered roller bearings and TQow – 2Tdiw bearings. It provides detailed specifications, dimensions, load ratings, and mounting information for various bearing models.
Specifications: The catalog lists multiple bearing part numbers, each with specific design types and cage types (stamped steel or pin type). Key specifications include bore diameter, outer diameter, width over cups and cones, dynamic radial and axial load ratings, and the K factor, which is a dimensionless number used in bearing calculations.
Load Ratings: The document provides load ratings for one million and ninety million revolutions, expressed in kilonewtons (kN) and pounds-force (lbf). These ratings are crucial for determining the bearing's capacity to withstand dynamic loads over its lifespan.
Mounting Dimensions: Detailed mounting dimensions are provided, including maximum shaft radius, cone backing diameter, maximum housing radius, and cup backing diameter. These dimensions are essential for ensuring proper installation and operation of the bearings.
Weight and Clearance: The catalog includes the weight of each bearing in kilograms and pounds, as well as axial cage clearance measurements, which are important for assessing the bearing's fit and function within an assembly.
Tables and Data: The document contains extensive tables listing the technical data for each bearing model, including dimensions, load ratings, and other critical parameters. These tables are designed to assist engineers and technicians in selecting the appropriate bearing for their specific application needs.
Conclusion: This catalog serves as a comprehensive resource for professionals in the industrial manufacturing sector, providing all necessary technical details to select and implement Timken® tapered roller bearings effectively.
Overview: This document is a technical catalog from Timken® Metals, focusing on various types of bearings, specifically tapered roller bearings, four-row tapered roller bearings, and sealed roll neck bearings. It provides detailed specifications, dimensions, and load ratings for different bearing models.
Specifications: The catalog lists multiple bearing part numbers, each with specific design types, cage types (stamped steel or pin type), and seal part numbers. It includes mounting dimensions such as bore diameter, outer diameter, width over cups and cones, and maximum shaft and housing radii. The weight of each bearing assembly is also provided, excluding seals, springs, or auxiliary components.
Load Ratings: The document provides dynamic radial and axial load ratings for one million and ninety million revolutions, expressed in kilonewtons (kN) and pounds-force (lbf). The k-factor, which is a dimensionless number used in bearing calculations, is also included.
Design and Customization: Some bearings are specially customized (spec.) and require consultation with a Timken engineer for details. The document notes that assembly weight does not include additional components like seals or springs.
Applications: The bearings are developed for high-speed rolling mill roll-neck applications, designed to minimize neck wear with a tapered-bore bearing.
Key Data Extraction: The tables in the document provide critical data such as dimensions in millimeters and inches, load ratings, and specific part numbers for each bearing type. This information is crucial for selecting the appropriate bearing for specific industrial applications.
Overview: The document is a technical catalog from Timken® Metals, focusing on various types of tapered roller bearings, specifically the TQiT, TQiTe, and TQiTs series. It provides detailed specifications, design types, and load ratings for these bearings.
Specifications:- TQiT Bearings: Composed of two single inner rings, one double inner ring, two double outer rings, and one outer-ring spacer with a tapered bore.
- TQiTe Bearings: Similar to TQiT but with one single inner ring having an extended rib.
- TQiTs Bearings: Include two single inner rings, one double inner ring, four single outer rings, and three outer-ring spacers, also with a tapered bore.
Design Types:- Four-row Tapered Roller Bearings: These are designed for heavy-duty applications, providing high load capacity and durability.
Load Ratings and Dimensions:- The catalog provides detailed tables listing the dimensions, load ratings, and dynamic factors for each bearing type. Key parameters include bore diameter, outer diameter, width over cups and cones, and dynamic radial and axial load capacities.
- Load ratings are given for one million and 90 million revolutions, indicating the bearings' durability under different operational conditions.
Mounting and Cage Types:- Mounting dimensions and weights are specified for each bearing part number, with cage types identified as either stamped steel (s) or pin type (P).
Applications:- The bearings are typically used in heavy-duty mills and leveler applications, providing support and stability in demanding environments.
Conclusion: The Timken® Metals Product Catalog is a comprehensive guide for selecting the appropriate tapered roller bearings for industrial applications, offering detailed specifications and performance metrics to ensure optimal selection and usage.
Overview: The document is a technical catalog from Timken® Metals, focusing on tapered roller bearings, specifically two-row tapered roller bearings, including TnasWH and TdiT – TnaT bearings. It provides detailed specifications, dimensions, load ratings, and design types for various bearing models.
Specifications: The catalog lists multiple bearing models with specific mounting dimensions, weights, and design types. Key parameters include bore diameter, outer diameter, cup width, cone width, and maximum shaft radius. The document also specifies the dynamic and static load ratings for each bearing model, measured in kilonewtons (kN) and pounds-force (lbf).
Design Types: The document describes different design types of two-row tapered roller bearings, such as TdiT, TnaT, TdiTe, TnaTcd, and TnaTda. Each design type has unique features, such as double cones, single cups, lubrication grooves, and anti-rotating pins.
Load Ratings: The catalog provides load ratings for one million and 90 million revolutions, detailing static radial, dynamic radial, and dynamic axial loads. These ratings are crucial for determining the bearing's performance under various operational conditions.
Tables and Figures: The document includes tables (e.g., Table 56 and Table 57) that summarize product data, including dimensions and load ratings. Figures (e.g., Fig. 51 and Fig. 52) illustrate the bearing designs and their components.
Key Information: The catalog emphasizes the importance of selecting the correct bearing type based on application requirements, such as load capacity and mounting dimensions. It also highlights the use of specific design features to enhance bearing performance and longevity.
Overview: This document is a technical catalog from Timken® Metals, focusing on various types of bearings, including tapered roller bearings, thrust tapered roller bearings, and screwdown systems. The catalog provides detailed specifications for each bearing type, including dimensions, static axial ratings, mounting dimensions, weight, and tolerances.
Key Sections:
- Bearing Specifications: Each bearing is listed with a part number, design type, and detailed dimensions. The dimensions include large and small outer diameters, bearing width, flat race width, bore, screw extension diameter, and spherical radius. These are provided in both millimeters and inches.
- Static Axial Rating: The catalog provides the static axial rating for each bearing, expressed in kilonewtons (kN) and pounds-force (lbf), indicating the maximum load the bearing can withstand.
- Mounting Dimensions: Details on the mounting dimensions are provided, which are crucial for ensuring proper installation and function of the bearings.
- Bearing Weight: The weight of each bearing is listed in kilograms and pounds, which is important for handling and installation considerations.
- Tolerance Table: Tolerances are specified for each bearing, indicating the allowable variations in dimensions to ensure proper fit and function.
Additional Notes: The catalog notes that bearing part numbers are arranged by outer diameter, and it advises contacting a Timken engineer for specific inquiries. It also references additional pages for design types and further details.
Overview: The document is a technical catalog from Timken, focusing on thrust spherical roller bearings used in various industrial applications. It provides detailed specifications, nomenclature, and product data for different bearing types.
Specifications:- Thrust Spherical Roller Bearings: Designed for high axial loads in work rolls and auxiliary equipment. Key dimensions include bore, outer diameter, width, housing shoulder diameter, shaft shoulder diameter, and fillet radius.
- Nomenclature: Bearings are categorized by series (light, medium, heavy, extra heavy) and bore code. Modifications include standard capacity, extended capacity with brass or stamped steel cages.
Design Types:- EJ Cage Type: Features a spherical inner and outer ring with an EJ steel cage, suitable for axially located inner rings.
- EM Cage Type: Includes a spherical inner and outer ring with a machined brass cage, not preferred for axially located inner rings.
Product Data:- Tables provide detailed measurements and load ratings for various bearing models, including static and dynamic load ratings, weight, and dimensions in both metric and imperial units.
- Key parameters include bore, outer diameter, width, housing and shaft diameters, spacer dimensions, and load ratings.
Recommendations: For specific applications and clamping loads, consulting a Timken engineer is advised. The catalog also references additional resources for comprehensive product information.
Overview: This document is a section from the Timken® Metals Product Catalog, focusing on high-performance mechanical components such as bearings. It provides detailed specifications for various bearing models, including dimensions, load ratings, and other critical parameters.
Specifications: The document lists several bearing models with detailed specifications. Key parameters include:
- Dimensions: Outer diameter, inner diameter, and width are specified in both millimeters and inches.
- Load Ratings: Static and dynamic load ratings are provided in kilonewtons and pounds.
- Fillet Radius: Maximum shaft or housing fillet radius that bearing corners will clear.
Models and Key Data:
- 292/670eJ: Outer diameter 670 mm, static load rating 23100 kN, dynamic load rating 4450 kN.
- 294/670em: Outer diameter 670 mm, static load rating 71968 kN, dynamic load rating 17031 kN.
- 294/710em: Outer diameter 710 mm, static load rating 81296 kN, dynamic load rating 19056 kN.
- Additional models are listed with similar detailed specifications.
Company Information: Timken is a global company specializing in the design and manufacture of mechanical components, including bearings, gears, and chains. The catalog is part of their effort to improve machinery reliability and performance across various markets.
Price: The catalog is priced at USD $75.