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Timken® SNT Plummer Block Catalog

Timken® SNT Plummer Block Catalog

Product catalog summary

Timken Overview: Timken is a global leader in metallurgy, friction management, and mechanical power transmission, offering products and services that enhance productivity across industries such as manufacturing, mining, and aerospace.

Housed Unit Introduction: Timken provides rugged housed units designed to protect bearings in harsh environments, ensuring smooth operation and reduced maintenance.

SNT Plummer Block Introduction: Timken's SNT plummer blocks are available in metric sizes, designed for heavy loads with a split-block design for easy installation and maintenance, and various sealing options to protect against contamination.

SAF Split Pillow Blocks: Available in imperial sizes, these blocks are designed for heavy loads and feature a split-block design for ease of use, with various sealing options.

Spherical Roller Bearing Solid-Block Housed Units: Made of solid steel, these units provide strength and durability in harsh conditions, offering multiple locking and sealing options.

Type E Housed Units: Featuring double-lip seals and locking collars, these units protect against contaminants and enhance performance, suitable for industries like pulp and paper, mining, and cement.

Ball Housed Units: These units offer easy installation and flexible options, ideal for agricultural applications, fans, and conveyors.

Shelf Life Policy: Timken provides guidelines for the shelf life of grease-lubricated bearings and components, emphasizing proper storage and handling.

Storage Guidelines for Grease-Lubricated Bearings:

Keep products in original packaging until use.
Maintain storage temperature between 0°C and 40°C with humidity below 60%.
Protect storage area from contaminants and vibrations.

Handling and Maintenance:

Avoid excessive force during installation or removal.
Follow manufacturer’s guidelines for installation and maintenance.
Avoid operating at temperatures above 121°C.
Ensure proper alignment and avoid welding housed units.

Warnings and Cautions:

Proper maintenance is critical to avoid risks of injury or equipment damage.
Special care is needed in explosive atmospheres.
Do not use damaged units.

Timken SNT Plummer Blocks:

Available in cast iron, ductile iron, or cast steel.
Features include center marks for alignment and multiple sealing options.
Commonly used in industries like power generation, mining, and food processing.

Engineering Section:

Covers spherical roller bearing design types and mounting recommendations.
Includes information on radial spherical roller bearing types and cages.
Provides metric system tolerances and fitting practice tables.

Specifications and Procedures: Detailed specifications and procedures for mounting tapered bore bearings, focusing on axial displacement values and necessary adjustments for sleeve mounting. Emphasizes consulting with a Timken engineer for specific shaft data.

Installation and Mounting: Outlines the installation process for bearings, emphasizing cleanliness, planning, and inspection. Provides steps for mounting cylindrical bore bearings using heat expansion and induction heating methods.

Calculating RIC Reduction: Examples illustrate the calculation of Radial Internal Clearance (RIC) reduction using spherical roller bearings with both tapered and cylindrical bores.

Best Practices and Warnings: Includes best practices for successful installation and warnings about the risks of improper handling.

Radial Spherical Roller Bearing Shaft Fits: Guidelines for shaft fits based on different load conditions and applications, with subdivisions based on load intensity.

Bearing Shaft Tolerances: Detailed tables outline tolerance symbols and shaft diameter fits for various classes.

Fitting Practice Tables: Guidelines for specifying shaft and housing fits, emphasizing the importance of selecting the correct tolerance and fit.

Lubrication: Discusses the roles of lubrication in minimizing rolling resistance, sliding friction, and protecting against corrosion. Highlights differences between oil and grease lubrication.

Grease Lubrication: Suitable for low-to-moderate speed applications, with a table summarizing the characteristics of different thickeners used with petroleum-based oils.

Base Oils: Categorized into petroleum and synthetic types, with synthetic oils offering better performance at extreme temperatures.

Viscosity: Selection of oil viscosity is critical for bearing applications, with a comparison of ISO/ASTM and SAE viscosity grades.

Consistency of Greases: Greases vary in consistency from semi-fluid to solid grades, with the NLGI classification provided.

Temperature Considerations: Impact of temperature on grease performance, with guidelines for selecting greases based on thermal stability and oxidation resistance.

Contamination and Grease Selection: Advises on selecting greases that resist water and contamination.

Performance Enhancing Grease Additives: Greases can be enhanced with additives to improve performance.

Grease Use Guidelines: Proper grease application is crucial for bearing performance, with advice on the correct amount of grease to use and methods for applying grease.

Specifications and Procedures: Importance of replacing lubrication when its properties are compromised, with suggested practices for seal lubrication.

General-Purpose Industrial Grease: Polyurea and lithium-based greases are recommended for Timken bearing applications.

Grease Compatibility and Application Considerations: A compatibility chart guides the selection of greases.

SNT Spherical Roller Bearing Plummer Blocks: Designed with rugged housings and high-capacity bearings, featuring improved geometry for maximized load capacity and service life.

Mounting Instructions: Guidance on fixed and float plummer block installations and closed-end installations.

Lubrication and Seals: Timken plummer block housings are primarily designed for grease lubrication but can be modified for oil systems.

Overview of Seal Types: Describes V-Ring, Labyrinth, and Taconite seals, with selection criteria based on material, temperature range, and resistance to dust and particles.

Installation Procedures: General instructions for seal installation, with specific procedures for different seal types.

Maintenance and Safety: Proper maintenance and handling are critical to prevent overheating and ensure safe operation.

Safety Warnings: Do not use damaged housed units to prevent equipment damage or injury.

Grease Fill Recommendations: Recommendations for grease fill based on application speed.

Tightening Torque Specifications: Detailed torque values for cap bolts and attachment bolts.

Housing and Component Specifications: Tables list dimensions, required components, and mass for different shaft diameters and housing types.

Material Options: Housings are available in cast iron, with options for cast steel or ductile iron.

Additional References: Timken Industrial Maintenance Manual and Spherical Roller Bearing Catalog are recommended for further information.

Specifications: Detailed specifications for various shaft diameters, housing types, and seal types.

Materials: Housings typically made from cast iron, with options for cast steel and ductile iron.

Components: Each housing assembly includes a housing cap, base, and cap bolts, with additional components like seals and end covers sold separately.

Key Features: Emphasizes the modular nature of the housing assemblies, allowing for customization.

Usage Recommendations: Ensuring compatibility of all components and adhering to specified dimensions and materials for optimal performance.

Specifications: Covers several series of spherical roller bearings, with detailed tables listing bearing dimensions, load ratings, cage types, and mounting data.

Recommendations: Users are advised to refer to the Timken Spherical Roller Bearing catalog for a wider selection.

Notes: Includes notes on maximum shaft or housing fillet radius, tolerance, and shaft diameters.

Specifications: Accessories include adapter sleeves, withdrawal sleeves, locknuts, lockwashers, and lockplates, designed to support installation and removal needs.

Adapter Sleeves: Used with nuts and locking devices to mount tapered bore bearings onto straight shafts.

Withdrawal Sleeves: Feature a push-type mounting arrangement, requiring a specially designed dismounting nut.

Locking Devices: Range of locknuts and locking washers to secure bearing assemblies on shafts.

Prefixes and Suffixes: Detailed list of prefixes and suffixes used in part descriptions.

Metric Accessories Index: Comprehensive index lists bearing bore sizes, part numbers, and corresponding adapter and withdrawal sleeves for metric shafts.

Conclusion: For further details on spherical roller bearing accessories, the document advises contacting a Timken engineer.

Metric OH Hydraulic Adapter Sleeves: Include a sleeve, nut, and lockwasher or lockplate, facilitating the mounting of large bearings with hydraulic assistance.

Metric Locknuts: Details locknuts with metric threads, providing dimensions and availability of stainless steel options.

Metric Lockwashers: Designed to secure locknuts in place, with specifications on tangs and material options.

Metric Lockplates: Used in conjunction with locknuts to provide additional security.

Key Specifications: Includes tables with detailed measurements for each component.

Applications and Recommendations: Intended for use in the installation and maintenance of spherical roller bearings.

Introduction: Catalog from Timken, focusing on SNT Plummer Blocks and related accessories.

Sections Overview:

Introduction to Timken® SNT Plummer Blocks.
Detailed introduction to spherical roller bearing plummer blocks.
Specifications for two-bolt SNT housings.
Information on large plummer block housings.
Comprehensive index on metric accessories.
Specific accessories for spherical roller bearings.

Key Specifications and Features:

Detailed specifications for each product line.
Emphasis on reliability and performance improvements.
Comprehensive accessory options.

Conclusion: The catalog serves as a detailed guide for selecting and utilizing Timken's SNT Plummer Blocks and accessories.

Catalog excerpts

TIMKEN® SNT PLUMMER BLOCK CATALOG EJ EM/YM EM/YM EMB/YMB

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TIMKEN ® SNT PLUMMER BLOCK CATALOG INDEX Timken Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Housed Unit Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Shelf Life Policy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Engineering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 SNT Plummer Block Nomenclature....

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TIMKEN OVERVIEW GROW STRONGER WITH TIMKEN Every day, people around the world count on the strength of Timken. Our expertise in metallurgy, friction management and mechanical power transmission helps them accelerate improvements in productivity and uptime. We supply products and services that can help keep your operations moving forward, whether you need drivetrain kits for commercial vehicles, durable housings for bearings in dirty environments, couplings that avoid metal-to-metal contact between motors and gearboxes, repair services for rail bearings, steel for an aircraft engine shaft, or other...

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TIMKEN OVERVIEW INCREASE YOUR EQUIPMENT UPTIME In addition to high-quality bearings, engineered steel and mechanical power transmission components, we provide valuable integrated products and services. For example, we offer repair services and monitoring equipment that can alert you to problems before they impact your uptime. Additionally, we offer a broad selection of seals, premium lubricants, lubricators, couplings and chain to keep your operations moving smoothly. Our 10 technology centers in the United States, Europe and Asia help pioneer tomorrow’s innovations with extensive basic and applied...

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INTRODUCTION HOUSED UNIT OVERVIEW RUGGED TIMKEN® HOUSED UNITS HELP PROTECT YOUR BEARINGS When you choose sturdy Timken housings, your bearings can keep rolling smoothly, even in harsh environments impacted by dirt, debris, water and other contaminants. Timken engineers designed special housings to withstand tough challenges on the job. Protected inside durable cast iron, ductile iron or steel, our highly engineered Timken® ball and roller bearings work hard to help you manufacture and transport materials, without excessive maintenance due to contaminants. Choose from our selection of housed units...

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INTRODUCTION HOUSED UNIT OVERVIEW TIMKEN® SNT SPLIT PLUMMER BLOCKS CARRY HEAVY LOADS Timken® SNT split plummer blocks are available in metric sizes. Their rugged cast iron, ductile iron or cast steel designs stand up to a range of industrial environments. Our Timken SNT plummer blocks have separate, matched caps and bases. In larger sizes where plummer blocks are heavier, this split-block design eases installation. Remove the cap using a pry-tool slot for bearing inspection, service and replacement. Available in a variety of metric shaft sizes, Timken SNT plummer block units offer the choice...

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INTRODUCTION HOUSED UNIT OVERVIEW TIMKEN® SAF SPLIT PILLOW BLOCKS HANDLE HEAVY LOADS Timken® SAF split pillow blocks are available in imperial sizes. Their rugged cast iron, ductile iron or cast steel designs stand up to a range of industrial environments. Our Timken SAF blocks have separate, matched caps and bases. In larger sizes where pillow blocks are heavier, this split-block design eases installation. Remove the cap using a pry-tool slot for bearing inspection, service and replacement. Available in a variety of imperial shaft sizes, Timken SAF units offer the choice of tapered-bore design...

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INTRODUCTION HOUSED UNIT OVERVIEW TIMKEN® SPHERICAL ROLLER BEARING SOLID-BLOCK HOUSED UNITS WITHSTAND HARSH CONDITIONS Timken® spherical roller bearing solid-block housed units stand up to rugged conditions. Composed of solid steel, they withstand most falling debris and handle up to ±1.5 degrees of misalignment. The steel used in these products is up to two times stronger than cast iron, which may break or pound out in tough applications. Timken spherical roller bearing solid-block housed units come in five locking configurations: single and double set screws, eccentric locks for reversing applications,...

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INTRODUCTION HOUSED UNIT OVERVIEW TIMKEN® TYPE E HOUSED UNITS REPEL CONTAMINANTS, ENHANCE PERFORMANCE Timken® Type E tapered roller bearing housed units feature double-lip seals and locking collars that protect against water and other contaminants. This double-lip seal design blocks debris and retains grease better than single-lip or triple-lip seals, according to Timken 2012 laboratory tests. Its cast-iron exterior includes a corrosion-resistant electro-coat finish for the housing and collar offering a more durable shield than industry-standard powder coating or black oxide. Set screws with...

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INTRODUCTION HOUSED UNIT OVERVIEW TIMKEN® BALL HOUSED UNITS OFFER EASY INSTALLATION, FLEXIBLE OPTIONS Timken® ball housed units, available in a variety of sizes and types, feature wide-inner-ring ball bearings that provide additional shaft support and locking options. The Timken® wide-inner-ring ball bearing is designed for straight shafts and can be positioned without shoulders, locknuts or adapters. For easy installation, our ball housed units can be ordered pre-assembled with bearings, housings, seals and locking systems. Choose from pillow blocks, flanged cartridges, take-up units and cylindrical...

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TIMKEN HOW TO USE THIS CATALOG HOW TO USE THIS CATALOG We designed this catalog to help you find the Timken housed units best suited to your specifications. Timken offers an extensive range of bearings and accessories in both imperial and metric sizes. For your convenience, size ranges are indicated in millimeters and inches. Contact your Timken engineer to learn more about our complete line for the special needs of your application. This publication contains dimensions, tolerances and load ratings, as well as engineering sections describing fitting practices for shafts and housings, internal...

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Timken® SNT Plummer Block Catalog

Timken® SNT Plummer Block Catalog

Catalog excerpts

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