Tapered Roller Bearings – Double Tapered Cones – Imperial

Tapered Roller Bearings Product Introduction

**TIMKEN Tapered Roller Bearings – Double Cones (Imperial Series 271): Engineered for Heavy-Duty Performance**

For over a century, TIMKEN has set the global standard for tapered roller bearing technology, delivering unmatched reliability in the most demanding industrial and automotive applications. Among its robust portfolio, the **TIMKEN Double Tapered Cones (Imperial Series 271)** stand out as a high-performance solution designed to handle heavy radial and thrust loads simultaneously. These precision-engineered bearings combine advanced metallurgy, optimized geometry, and rigorous manufacturing tolerances to extend equipment life, reduce maintenance costs, and enhance operational efficiency across critical machinery.

### **Technical Features & Design Advantages**
The **Series 271 Double Tapered Cones** are crafted for applications requiring superior load distribution and alignment flexibility. Key features include:

– **Dual-Row Design**: Two independent cone assemblies enable balanced load sharing, accommodating combined radial and axial forces in a compact footprint.
– **Premium Steel Alloys**: Manufactured from ultra-clean, case-hardened steel for exceptional fatigue resistance and durability under shock loads or high-speed conditions.
– **Precision Ground Surfaces**: Optimized roller profiles and raceway finishes minimize friction, heat generation, and wear, even in misalignment scenarios.
– **Interchangeability**: Conforms to imperial dimensions for seamless integration with existing systems, reducing downtime during replacements.
– **Sealing & Lubrication Options**: Compatible with TIMKEN’s advanced sealing solutions (e.g., labyrinth or contact seals) and specialty greases for contaminated environments.

### **Performance Benefits**
TIMKEN’s double cones excel where single-row bearings fall short, offering:
– **Higher Load Capacity**: The dual-row configuration distributes loads evenly, making them ideal for applications with oscillating or variable force directions.
– **Extended Service Life**: Reduced stress concentrations and improved lubrication retention lead to longer intervals between overhauls.
– **Versatility**: Performs reliably in both slow-speed, high-torque environments (e.g., conveyor pulleys) and high-speed applications (e.g., gearbox systems).

### **Typical Applications**
The **Series 271 Double Tapered Cones** are widely specified in heavy industries, including:
– **Industrial Machinery**: Crushers, extruders, and mining equipment where shock loads and misalignment are common.
– **Automotive Systems**: Wheel hubs, differentials, and drivetrains in commercial vehicles and off-highway equipment.
– **Precision Equipment**: Wind turbine gearboxes, rolling mill stands, and pulp/paper processing machinery requiring sustained performance under extreme conditions.

Engineered to exceed industry benchmarks, TIMKEN’s Double Tapered Roller Bearings deliver the strength, precision, and longevity needed to keep critical systems running smoothly. Whether in harsh environments or precision-driven applications, they represent a proven investment in reduced downtime and total cost of ownership.

*For specific dimensions, load ratings, or customization options, consult TIMKEN’s engineering resources or product catalogs.*

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Part Number Series d - Cone Bore B - Double Cone Width C1 - Dynamic Radial Rating(1 million revolutions) C0 - Static Radial Rating
EE280700DG
280000
177.800 mm
114.300 mm
603000 N
867000 N
EE220975DW
220000
247.650 mm
114.300 mm
876000 N
1450000 N
EE280703DW
280000
177.800 mm
114.300 mm
603000 N
867000 N
EE221025D
220000
260.350 mm
114.300 mm
828000 N
1450000 N
EE291176D
290000
298.450 mm
107.950 mm
887000 N
1390000 N
EE130888D
130000
225.425 mm
165.100 mm
796000 N
1400000 N
EE221027D
220000
260.350 mm
120.650 mm
828000 N
1450000 N
EE291200D
290000
304.8 mm
107.950 mm
887000 N
1390000 N
EE130900D
130000
228.600 mm
120.650 mm
796000 N
1400000 N
EE231401D
230000
355.6 mm
111.125 mm
1050000 N
1870000 N
EE291202D
290000
304.8 mm
117.475 mm
887000 N
1390000 N
89108D
89000
276.225 mm
88.900 mm
463000 N
941000 N
97500D
97000
127 mm
151.244 mm
376000 N
486000 N
89111D
89000
279.578 mm
88.900 mm
463000 N
941000 N
99587D
99000
149.225 mm
120.650 mm
660000 N
1030000 N
8976D
8900
203.352 mm
81.758 mm
428000 N
764000 N
EE113090D
113000
228.600 mm
158.750 mm
1270000 N
1600000 N
93751D
93000
190.5 mm
133.350 mm
731000 N
1290000 N
EE126096D
126000
244.475 mm
146.050 mm
907000 N
1690000 N
93751DW
93000
190.5 mm
133.350 mm
731000 N
1290000 N