Single row Tapered bearings

                                      


 

This is the most basic and most widely used type of tapered roller bearing.  It consists of two main separable parts: the inner race assembly and the outer race.  It is typically mounted in opposing pairs on a shaft.

Size range: 

ID 7.937 to 863.600 mm (0.31225 to 34.0000 in.)

OD 31.991 to 1060.000 mm (1.2595 to 41.7323 in.)

Design Attributes 

  • Single cone and cup.
  • One-piece pressed steel cage retains rollers on the cone and spaces them evenly.
  • Pin type cages also available.

Applications 

  • Vehicle front wheels
  • Differential and pinion configurations
  • Conveyor rolls
  • Machine tool spindles
  • Trailer wheels

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The pin type design increases the load-carrying capacity of TS bearings by removing cage bridges (leaving more room for rollers) and featuring longer rollers. 
The pin type cage consists of two rings, one at each end of the rollers. Cage pins pass through the holes in the center of each roller and are threaded into one cage ring and welded into the other. 

Size range: 

ID  152.400 mm to 1701.800 mm (6.0000 in. to 67.0000 in.) 

OD 307.975 mm to 2032.000 mm (12.1250 in. to 80.0000 in.) 

Design Attributes 

  • Additional rollers accomodate larger loads.
  • Cage features two rings at each end of the rollers.
  • Cage pins are threaded in the center of each roller and welded at the ends.

Applications 

  • Larger-load automotive
  • Industrial equipment configurations
  • Off highway
  • Aerospace
  • Power transmission
  • Heavy industries
  • Health

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TSF bearings have flanged cups to facilitate axial location and accurately align seals in through-bored housings. 

Size range: 

ID  7.937 mm to 1270.000 mm (0.3125 in. to 50.0000 in.) 

OD 31.991 mm to 1435.100 mm (1.2595 in. to 56.5000 in.)

 

 

Design Attributes

  • Cup is backed against flange face to allow housing to be through-bored.
  • Accurate alignment of housing bores.
  • Reduced machining costs.

Applications

  • Machine tool spindles
  • Gear reduction units
  • Automotive transaxles
  • Transmissions

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TSU bearings are self-contained, unitized assemblies that carry heavy radial loads and can manage thrust loads in either direction.   

Size range: 

ID 30.000 mm to 45.000 mm (1.811 in. to 1.7717 in.)

OD 58.000 mm to 80.000 mm (2.2835 in.  to 3.1496 in.) 

Design Attributes

  • Self-contained, unitized assembly.
  • Manages heavy radial loads and thrust loads in either direction.
  • Applications

    • Automotive rear wheels
    • Transmissions
    • Gear reduction units
    • Industrial equipment

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TSL bearings are similar to TS bearings, but feature DUO FACE-PLUS™ seals pressed onto the outside diameter of the cone rib.  

Size range: 

ID 19.050 mm to 68.262 mm (0.7500 in.  to 2.6875 in.)

OD 45.237 mm to 110 mm (1.7810 in.  to 4.3307 in.)

 

Design Attributes

  • TS design with a seal pressed onto the cone rib OD.
  • One seal lip operates in the housing bore while the other seals against the cup face.

Applications

  • Moderate- to low-speed automotive and industrial applications
  • Aircraft wheels
  • Farm implement wheels
  • Idler rollers
  • Side-delivery hay rakes

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Some applications demand a high level of precision that cannot be achieved with standard tapered roller bearings. For more than 50 years, Timken has offered a wide array of precision-class tapered roller bearings with reduced bore and OD tolerances that deliver superior accuracy and control in critical applications. This greater rotational accuracy is required for machine tool applications.
 

Size range:
ID 30 mm to 45 mm (1.811 in. to 1.7717 in.)
OD 58 mm to 80 mm (2.2835 to 3.1496 in.)

 Design Attributes

  • Tighter manufacturing specifications resulting in greater rotational accuracy.
  • Reduced tolerances on bore and outside diameter, creating improved performance in high speed, high temperature applications.
  • Straight race and/or roller profile designs (versus crowned profile designs) for increased accuracy and rigidity.
  • Controlled machining and assembly processes to ensure that components are matched properly and exact specifications are met.
  • High load-carrying capabilities so that bearing fatigue life is enhanced.
  • The ability to be adjusted during installation so that operating torque, shaft rigidity and operating temperature can be precisely controlled.

Applications

  • Machining
  • Printing presses
  • Rolling mills
  • Optical grinders
  • Profile cutters
  • Indexing tables
  • Machine tool spindles and drive tables
  • Rolls for special film and coating process equipment

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Size Range:

ID 22.225 mm to 117.475 mm (0.8750 in. to 4.6250 in.)

OD 57.150 mm to 180.975 mm (2.2500 in. to 7.1250 in.)

 

Design Attributes

  • Basic TSF design with groove to accomodate a snap ring instead of flange.
  • Can be ordered with or without snap ring.

 

Applications

  • Machine tool spindles
  • Gear reduction units
  • Automotive transaxles
  • Transmissions

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The Timken® Hydra-Rib™ bearing is a tapered roller design available in any class of precision to maintain optimum spindle system preload. The Hydra-Rib bearing has a floating outer race rib, positioned by hydraulic or pneumatic pressure, and is in contact with the large roller ends instead of the usual fixed inner race rib. This retains system stiffness while allowing for thermal expansion. Its floating rib design allows the bearing to compensate for thermal growth variations while maintaining the optimum setting and accuracy for a variety of speeds and loads. 

Size range:
ID 50.000 mm to 270.000 mm (1.9685 in. to 10.6299 in.)
OD 104.000 mm to 375.000 mm (4.0945 in. to 14.7638 in.) 

Design Attributes

  • Additional rollers accommodate larger loads.
  • Cage features two rings at each end of the rollers.
  • Cage pins are threaded in the center of each roller and welded at the ends.

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Size Range:

ID 18.721 mm to 498.475 mm (0.7210 in. to 19.6250 in.)
OD 49.225 mm to 634.873 mm  (1.9380 in. to 24.9950 in.)  

Design Attributes

  • TS bearing design with a cone that features one or more keyways.
  • Keyways prevent the bearing from rotating on the shaft.

 Applications

  • Automotive or industrial rotating shaft applications where it is not practical to use an interference fit.

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Precision crossed roller bearings (TXR) are designed to offer the highest levels of rotational accuracy and rigidity while conserving space and saving material costs. The bearing features two sets of races and rollers brought together at right angles with alternate rollers facing in opposite directions. This allows two half-rows of rollers to fit into the space of one. The steep-angle, tapered geometry results in a total effective bearing spread much greater than the width of the bearing itself. 

Able to withstand high overturning moments, the crossed roller bearing is ideal for the table bearing of machine tools, including vertical boring and grinding machines. It is uniquely suited to many other pivot and pedestal applications where space is limited or the lowest possible center of gravity of a rotating mass is required. 

Size range:
ID 203.200 mm to 2463.800 mm (8.000 in. to 97.000 in.)
OD 279.400 mm to 2819.400 mm (11.000 in. to 111.000 in.)  

Design Attributes

  • Provides benefits of two-row bearings in single-row space.
  • Withstands high overturning moments.
  • Combines the compactness of a single-row bearing with the stability of a two-row bearing.

Applications

  • Vertical boring mills
  • Vertical grinding machines
  • Other machine tools

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Timken® MileMate™ sets - the original matched wheel bearing sets - are designed to keep trucks up and moving.  Our 44 matched cup and cone sets are built for superior results and less downtime.  Our sets are designed to meet or exceed the original equipment manufacturer's specifications.  This includes the ConMet® PreSet® and Spicer® LMS™

as well as the new wide single tire applications. 

Timken proprietary "NP" part numbers that exceed industry standards also are available for applications that require more advanced performance. 

Design Attributes

  • Made from quality Timken certified steel.
  • Perfectly matched sets simplify installation and require less inventory.
  • Design features original equipment technology that optimizes bearing performance and lengthens maintenance intervals.
  • Design allows bearings to carry evenly distributed loads.
  • Original equipment on ConMet PreSet and Spicer LMS enhances performance.

Proprietary "NP" Part Numbers

  • Features enhanced surfaces and more precise internal bearing geometry, proving longer life and reliability.
  • Many heavy-duty, pre-adjusted hubs are serviceable, such as ConMet PreSet and Spicer LMS.
  • Specifically designed to handle the two-inch outset loads of the Michelin® X One™ and Bridgestone® Greatec™ wide single tires.
  • Ensures all the advantages originally engineered into heavy-duty, pre-adjusted hub systems.

Applications

  • Heavy truck wheel ends

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Timken's 454-Series wheel bearings for dual and wide single tires are specifically designed to handle 2 inch outset loads. 454-Series sets help commercial vehicle customers conserve fuel, carry greater loads, standardize components and maximize uptime. 

Design Attributes

  • Allows for component consistency among fleets and provides for flexibility of wheel arrangements.
  • Compatible with industry standard components - 454-Series sets can be used with popular axle and hub designs and can retrofit into existing equipment.
  • Sets feature highly engineered raceway profiles for optimal stress distribution.
  • Proprietary surface finishes further enhance bearing performance.

Applications

  • Heavy truck wheel ends equipped with dual or wide single tires.

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At first glance, you may not be able to tell the difference between this tapered roller bearing and any other. Upon closer inspection, you’ll find Timken® fuel efficient bearings are lighter and thinner than their standard counterparts. From improved fuel economy to increased reliability, fuel efficient bearings offer exactly what you want to build a better axle system. 

Design Attributes

  • Advanced tapered design results in a 30 percent reduction in power consumption and up to a two percent gain in vehicle fuel economy.
  • Power dense design reduces bearing weight by 10-15 percent.
  • Controlled set-up torque helps you achieve more accurate settings, resulting in the highest axle performance possible.

Applications

  • Light duty automotive axles

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