Tapered Roller Bearings – TDO (Tapered Double Outer) Imperial

Tapered Roller Bearings Product Introduction

**TIMKEN Tapered Roller Bearings – TDO (Tapered Double Outer) Series: Superior Load Handling for Demanding Applications**

TIMKEN Tapered Roller Bearings are renowned for their exceptional durability, precision, and ability to manage combined radial and axial loads in high-performance industrial and automotive systems. Among TIMKEN’s extensive bearing portfolio, the **TDO (Tapered Double Outer) series**, including both metric (0) and imperial (2093) designs, stands out for its robust construction and versatility in heavy-load applications. These bearings are engineered to deliver unmatched reliability in environments where extreme forces, misalignment, or variable speeds are common.

### **Technical Features & Design Advantages**
The **TDO tapered roller bearings** feature a unique double outer ring and single inner ring configuration, enabling them to accommodate substantial radial and thrust loads in both directions. This design is particularly beneficial in applications where space constraints or shaft deflection might otherwise compromise performance. Key features include:

– **Optimized Load Distribution**: The tapered rollers are precision-ground to ensure even load sharing, reducing stress concentrations and extending service life.
– **Enhanced Rigidity**: The double-cup (outer ring) design increases stiffness, making these bearings ideal for applications with high moment loads or shaft misalignment.
– **Superior Lubrication Retention**: Advanced sealing options and optimized internal geometries help maintain consistent lubrication, even in harsh operating conditions.
– **Interchangeability & Standardization**: Available in both metric (0-series) and imperial (2093-series) sizes, TIMKEN TDO bearings are designed to replace competitor units seamlessly while offering improved performance.

### **Performance Benefits**
TIMKEN’s TDO tapered roller bearings excel in applications requiring high load capacity, shock resistance, and long-term reliability. Their ability to handle **combined axial and radial loads** makes them indispensable in heavy machinery, while their precision ensures smooth operation in high-speed scenarios. Additional advantages include:

– **Extended Bearing Life**: Advanced steel alloys and heat treatment processes enhance fatigue resistance, reducing downtime and maintenance costs.
– **Reduced Friction & Heat Generation**: Precision-engineered roller profiles minimize friction, improving efficiency and reducing energy consumption.
– **Versatility Across Industries**: Suitable for both slow, heavy-load applications (e.g., mining equipment) and high-speed operations (e.g., gearboxes).

### **Typical Applications**
TIMKEN TDO tapered roller bearings are widely used in industries where reliability under extreme conditions is critical. Common applications include:

– **Industrial Machinery**: Conveyor systems, crushers, and heavy-duty gearboxes requiring high radial and thrust load support.
– **Automotive & Transportation**: Wheel hubs, differential systems, and truck axles where durability and load management are essential.
– **Precision Equipment**: Machine tool spindles and rolling mills where alignment accuracy and minimal deflection are crucial.

For engineers and maintenance professionals seeking a robust, high-performance bearing solution, TIMKEN’s TDO series offers a proven combination of strength, precision, and longevity—ensuring optimal performance in the most demanding environments.

MORE +
CLOSE +
Part Number Series d - Bore D - Cup Outer Diameter B - Cone Width C - Double Cup Width T - Bearing Width across Cones C90 - Dynamic Radial Rating (One-Row, 90 million revolutions) C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)
EE91702 - 91113XD
91000
177.800 mm
285.750 mm
63.5 mm
92.075 mm
136.525 mm
127000 N
853000 N
EE941205 - 941951XD
940000
304.8 mm
495.300 mm
74.613 mm
120.650 mm
162.245 mm
402000 N
2700000 N
EE971354 - 972103D
970000
342.900 mm
533.400 mm
76.200 mm
123.825 mm
174.625 mm
448000 N
3010000 N
EE982051 - 982901CD
980000
520.7 mm
736.600 mm
81.758 mm
114.300 mm
186.502 mm
516000 N
3460000 N
HM256849 - HM256810D
HM256800
300.038 mm
422.275 mm
82.550 mm
136.525 mm
174.625 mm
336000 N
2260000 N
M667935 - M667910D
M667900
387.248 mm
546.1 mm
87.313 mm
144.463 mm
185.735 mm
484000 N
3250000 N
M667948 - M667910D
M667900
409.575 mm
546.1 mm
87.313 mm
144.463 mm
185.735 mm
438000 N
2940000 N
M667947 - M667910D
M667900
409.575 mm
546.1 mm
87.313 mm
144.463 mm
185.735 mm
484000 N
3250000 N
M667944 - M667911D
M667900
406.400 mm
546.1 mm
87.313 mm
147.638 mm
185.735 mm
484000 N
3250000 N
M667948 - M667911D
M667900
409.575 mm
546.1 mm
87.313 mm
147.638 mm
185.735 mm
438000 N
2940000 N
M667947 - M667911D
M667900
409.575 mm
546.1 mm
87.313 mm
147.638 mm
185.735 mm
484000 N
3250000 N
M667935 - M667911D
M667900
387.248 mm
546.1 mm
87.313 mm
147.638 mm
185.735 mm
484000 N
3250000 N
M667947 - M667911DC
M667900
409.575 mm
546.1 mm
87.313 mm
147.638 mm
185.735 mm
484000 N
3250000 N
M667935 - M667911DC
M667900
387.248 mm
546.1 mm
87.313 mm
147.638 mm
185.735 mm
484000 N
3250000 N
M667944 - M667911DC
M667900
406.400 mm
546.1 mm
87.313 mm
147.638 mm
185.735 mm
484000 N
3250000 N
M667948 - M667911DC
M667900
409.575 mm
546.1 mm
87.313 mm
147.638 mm
185.735 mm
438000 N
2940000 N
M919048 - M919010D
M919000
89.980 mm
161.900 mm
30.163 mm
44.450 mm
69.850 mm
52600 N
354000 N
NA56425SW - 56650CD
56000
107.95 mm
165.1 mm
44.45 mm
63.5 mm
88.900 mm
58700 N
CAD
NA48290SW - 48220D
48200
127 mm
182.563 mm
46.83 mm
73.025 mm
93.66 mm
69400 N
CAD
NA48685SW - 48620D
48600
142.875 mm
200.025 mm
46.833 mm
73.025 mm
93.665 mm
74300 N
CAD
NA67885SW - 67820CD
67800
190.5 mm
266.7 mm
54.767 mm
84.138 mm
109.535 mm
108000 N
CAD
LM446349NW - LM446310D
LM446300
234.95 mm
311.15 mm
50.8 mm
73.025 mm
101.600 mm
114000 N
768000 N
NA8575SW - 8520CD
8500
234.95 mm
327.025 mm
58.738 mm
82.55 mm
117.475 mm
137000 N
CAD
LM241149NW - LM241110D
LM241100
203.2 mm
276.225 mm
47.625 mm
73.025 mm
95.250 mm
114000 N
764000 N