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
HM259048WS
HM259000
317.500 mm
85.725 mm
1690000 N
2790000 N
HM259049
HM259000
317.500 mm
85.725 mm
1680000 N
3140000 N
L558548
N/A
320.675 mm
55.563 mm
572000 N
1260000 N
LL758744
N/A
323.850 mm
28.575 mm
244000 N
672000 N
EE720128
N/A
325.438 mm
136.525 mm
3310000 N
4600000 N
EE971298
970000
329.870 mm
76.200 mm
1730000 N
2500000 N
L860049A
L860000
329.895 mm
47.625 mm
485000 N
1180000 N
EE161300
160000
330.200 mm
55.563 mm
628000 N
1110000 N
EE203130
203000
330.200 mm
63.5 mm
1030000 N
1770000 N
EE526130
526000
330.200 mm
80.167 mm
1250000 N
2320000 N
M252349H
M252300
269.875 mm
74.613 mm
1260000 N
2030000 N
M252349HWS
M252300
269.875 mm
74.613 mm
1260000 N
2030000 N
29888
29800
273.050 mm
22.225 mm
151000 N
391000 N
EE275108
275000
273.050 mm
69.850 mm
1010000 N
1600000 N
L853048
L853000
275.001 mm
40.000 mm
306000 N
664000 N
L853049
L853000
276.225 mm
34.925 mm
333000 N
750000 N
EE295110
295000
279.4 mm
120.650 mm
2420000 N
3310000 N
EE722110
722000
279.4 mm
93.663 mm
1610000 N
2350000 N
KLL352149
N/A
279.4 mm
24.384 mm
162000 N
467000 N
L555233
L555200
279.4 mm
47.625 mm
520000 N
1150000 N
LL352148
N/A
279.4 mm
22.860 mm
162000 N
467000 N
LL352149
N/A
279.4 mm
24.384 mm
162000 N
467000 N
LM654642
LM654600
279.982 mm
65.088 mm
722000 N
1720000 N
EE128112
128000
279.999 mm
67.673 mm
868000 N
1660000 N