Tapered Roller Bearings – Single Cones – Imperial

Tapered Roller Bearings Product Introduction

**TIMKEN Tapered Roller Bearings – Single Cones (Imperial Series 2490): Engineered for Precision and Durability**

TIMKEN tapered roller bearings are synonymous with reliability, high load capacity, and precision performance in demanding industrial and automotive applications. Among its extensive portfolio, the **TIMKEN Single Cone Tapered Roller Bearings (Imperial Series 2490)** stand out as a critical component for machinery requiring robust radial and thrust load support. Designed with exacting tolerances and superior metallurgy, these bearings excel in applications where misalignment resistance, long service life, and operational efficiency are paramount.

### **Technical Features & Design Advantages**
The **TIMKEN 2490 Series Single Cone** bearings are engineered to handle combined radial and axial loads, thanks to their precision-ground tapered rollers and raceways. Key features include:

– **Optimized Load Distribution:** The tapered geometry ensures even stress distribution across the rollers, reducing edge loading and extending bearing life.
– **High-Strength Steel Construction:** Manufactured from premium alloy steels, these cones undergo advanced heat treatment processes to enhance hardness, fatigue resistance, and durability under heavy loads.
– **Interchangeability & Precision Fit:** Designed to meet imperial (inch) dimensions, the 2490 Series cones are compatible with TIMKEN cups and assemblies, ensuring seamless integration into existing systems.
– **Enhanced Lubrication Retention:** The precision-machined surfaces and optimized roller profiles promote efficient lubricant flow, minimizing friction and heat generation.

### **Performance Benefits**
TIMKEN’s Single Cone bearings deliver unmatched performance in harsh operating conditions:
– **Superior Durability:** The hardened steel construction resists wear, spalling, and micro-fatigue, even in high-vibration environments.
– **Reduced Friction & Heat Build-Up:** Precision grinding and optimized roller alignment lower rotational resistance, improving energy efficiency.
– **Versatile Mounting Options:** Single cones allow for adjustable preload and axial clearance, making them ideal for applications requiring precise shaft positioning.

### **Typical Applications**
TIMKEN 2490 Series Single Cones are widely used in heavy-duty industrial and automotive systems, including:
– **Industrial Gearboxes & Pumps:** Supporting shafts in high-torque, low-speed, or high-speed applications.
– **Construction & Mining Equipment:** Wheel hubs, conveyor systems, and crushers where shock loads are prevalent.
– **Automotive Axles & Transmissions:** Providing reliable performance in truck differentials and drivetrains.
– **Precision Machinery:** Machine tool spindles and agricultural equipment requiring tight tolerances.

For engineers and maintenance professionals seeking a balance of strength, precision, and longevity, **TIMKEN’s 2490 Series Single Cone Tapered Roller Bearings** offer a proven solution backed by over a century of bearing innovation. Whether in extreme environments or precision assemblies, these bearings ensure optimal performance with minimal downtime.

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Part Number Series d - Cone Bore B - Cone Width C1 - Dynamic Radial Rating (1 million revolutions) C0 - Static Radial Rating
EE327220
327000
558.8 mm
129.380 mm
3790000 N
6760000 N
EE542220
542000
558.8 mm
76.200 mm
1400000 N
3240000 N
EE647220
N/A
558.8 mm
73.025 mm
1540000 N
3440000 N
EE843220
843000
558.8 mm
88.108 mm
2070000 N
4580000 N
LM377449
LM377400
558.8 mm
104.775 mm
2570000 N
6370000 N
LL777148
N/A
571.500 mm
44.45 mm
680000 N
1920000 N
M278749
M278700
571.500 mm
155.575 mm
4530000 N
10600000 N
EE662303
660000
584.200 mm
139.700 mm
4980000 N
7590000 N
L778149
N/A
584.200 mm
57.150 mm
1210000 N
2930000 N
LL778149
N/A
584.200 mm
49.213 mm
798000 N
2280000 N
680235
680000
596.900 mm
31.750 mm
344000 N
963000 N
EE649237
649000
602.945 mm
93.663 mm
2610000 N
5620000 N
EE649239
649000
607.720 mm
93.663 mm
2610000 N
5620000 N
EE649238
649000
609.346 mm
93.663 mm
2610000 N
5620000 N
L879946
N/A
609.397 mm
92.075 mm
1980000 N
5470000 N
EE649240
649000
609.600 mm
93.663 mm
2610000 N
5620000 N
EE649240H
649000
609.600 mm
93.663 mm
2540000 N
5390000 N
EE743240
743000
609.600 mm
82.550 mm
2080000 N
4060000 N
M667947
M667900
409.575 mm
87.313 mm
1870000 N
3940000 N
M667948
M667900
409.575 mm
87.313 mm
1690000 N
3420000 N
EE911618
910000
411.163 mm
84.138 mm
1840000 N
2870000 N
M268749
M268700
415.925 mm
114.300 mm
2860000 N
5550000 N
M268749WS
M268700
415.925 mm
114.300 mm
3120000 N
5550000 N
M268742
M268700
419.989 mm
114.300 mm
2860000 N
5550000 N