To withstand the tough operating conditions found in many industrial applications, Timken offers two product lines that help improve bearing life in intense environments: DuraSpexx® and the DuraSpexx® Power Rating Series.

DuraSpexx bearings are modified designs that offer enhancements to improve bearing life in demanding applications with harsh environments. Timken engineers use sophisticated, application-focused computer programs to help you model your operating environment and recommend specially-designed bearings that yield longer life.

Our DuraSpexx Power Rating Series consists of defined part numbers – tapered single (TS), tapered double outer (TDO) and tapered thrust heavy duty (TTHD) bearings – that have standard lead times. This series leverages our technical capabilities for a 23 percent bearing rating increase and up to a 100 percent bearing life increase.

Design Attributes 

• Enhanced materials reduce inclusion-related damage.
• Surface finishing options reduce peeling and fatigue in high temperature and thin lubricant film environments.
• Profiled geometry distributes stress more evenly under high load and/or misalignment.
• Series of features on standard designs enhances performance without the need for a costly total system redesign.

• Smaller housings help reduce overall system weight.
• Design accommodates higher levels of power, speed and torque; raises equipment life rating; and lengthens maintenance intervals and reduces power consumption.

Applications 

DuraSpexx bearings are engineered for use in:

• Heavy truck wheels
• Crawler sprockets
• Torque hubs
• Sheaves
• Gear drives
• Rolling mill drives and roll necks
• Mining equipment
• Aerospace applications

DuraSpexx Power Rating Series bearings are ideal for:

• Heavy load industrial applications such as gear drives, rolling mills and oil field equipment

DuraSpexx bearing technology can be used to fill the performance gap between a “standard” bearing and the premium Timken's P900 bearing. Increased size flexibility provides optimum designs where the P900 may not be feasible. In addition, DuraSpexx technology can be applied to most Timken single- and multi-row tapered bearing configurations with up to a 2133.6 mm (84 in.) outside diameter.

Delivered with standard lead times, the DuraSpexx Power Rating Series is available in a wide range of sizes from an established list of part numbers. That list also can be expanded to include the parts in your equipment. For standard sizes, reference our DuraSpexx Power Rating Series part number lists for TS and TDO-TTHD bearings under “Related Links” at right.  For custom sizes, contact us.

Can’t decide which Timken High Performance Bearing is right for you? Contact your Timken sales representative, or compare our DuraSpexx and DuraSpexx Power Rating Series offerings to the other products in our high performance line using the chart below.

The chart below is simplified for convenient referral. Please contact your Timken sales engineer or sales representative for detailed information.

Click the thumbnail image to enlarge.