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
HM256849
HM256800
300.038 mm
82.550 mm
1300000 N
2770000 N
NA329116
N/A
300.787 mm
80.9625 mm
N/A
CAD
M349546XX
M349500
255.600 mm
63.5 mm
628000 N
1270000 N
M349547
M349500
255.600 mm
63.5 mm
628000 N
1270000 N
M249747
M249700
257.175 mm
76.200 mm
835000 N
1630000 N
M349549
M349500
257.175 mm
57.150 mm
680000 N
1430000 N
M349549A
M349500
257.175 mm
57.150 mm
680000 N
1430000 N
M349549W
M349500
257.175 mm
57.150 mm
680000 N
1430000 N
EE221018
220000
258.763 mm
67.470 mm
949000 N
1450000 N
EE128102
128000
260.350 mm
67.673 mm
924000 N
1820000 N
EE134102
134000
260.350 mm
58.738 mm
679000 N
1330000 N
EE221026
220000
260.350 mm
67.470 mm
949000 N
1450000 N
EE295102
295000
260.350 mm
120.650 mm
2420000 N
3310000 N
EE435102
435000
260.350 mm
84.138 mm
1120000 N
2010000 N
HM252348
HM252300
260.350 mm
79.771 mm
1500000 N
2020000 N
HM252348WS
HM252300
260.350 mm
79.771 mm
1640000 N
2020000 N
HM252349
HM252300
260.350 mm
79.771 mm
1550000 N
2110000 N
HM252349NA
N/A
260.350 mm
86.519 mm
N/A
CAD
HM252348NA
N/A
260.350 mm
86.519 mm
N/A
CAD
NA221027SW
N/A
260.350 mm
73.025 mm
N/A
CAD
LM451344
LM451300
262.974 mm
61.999 mm
637000 N
1310000 N
38880
N/A
263.525 mm
28.575 mm
221000 N
554000 N
K38880
N/A
263.525 mm
28.575 mm
221000 N
554000 N
LM451345
LM451300
263.525 mm
57.150 mm
701000 N
1510000 N