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
LL52549
N/A
22.225 mm
11.176 mm
16600 N
16800 N
21075
21000
19.05 mm
21.839 mm
55100 N
42500 N
M12649X
N/A
21.430 mm
18.288 mm
40800 N
43500 N
M12648
N/A
22.225 mm
18.288 mm
52200 N
43500 N
21075A
21000
19.05 mm
21.839 mm
55100 N
42500 N
LM12749
N/A
21.986 mm
16.637 mm
38600 N
35300 N
M12648A
N/A
22.225 mm
18.288 mm
52200 N
43500 N
4A
N/A
19.05 mm
11.908 mm
20300 N
20600 N
LM12749F
N/A
21.986 mm
16.637 mm
38600 N
35300 N
LM72849
N/A
22.606 mm
15.499 mm
35100 N
33000 N
11590
N/A
15.875 mm
14.288 mm
18800 N
17400 N
09070
09000
17.653 mm
21.539 mm
42800 N
40500 N
11590A
N/A
15.875 mm
14.288 mm
17400 N
17400 N
05070XS
05000
17.988 mm
14.381 mm
26700 N
25400 N
1178X
N/A
15.875 mm
22.555 mm
37000 N
36300 N
05070X
05000
18.001 mm
14.381 mm
24700 N
25400 N
17580
17500
15.875 mm
16.670 mm
31400 N
29200 N
09075
09000
18.999 mm
22.332 mm
42800 N
40500 N
A2031
A2000
7.938 mm
10.785 mm
10800 N
9230 N
21063
21000
15.875 mm
21.839 mm
55100 N
42500 N