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
LL205449A
LL205400
50.8 mm
12.700 mm
37300 N
47200 N
LL205449AA
LL205400
50.8 mm
12.700 mm
37300 N
47200 N
5562
5500
49.213 mm
43.764 mm
237000 N
327000 N
65390
N/A
49.213 mm
44.45 mm
224000 N
256000 N
HH506348
N/A
49.213 mm
44.45 mm
246000 N
290000 N
HM807044
HM807000
49.213 mm
36.513 mm
203000 N
223000 N
55196
55000
49.975 mm
26.909 mm
126000 N
119000 N
55197
55000
49.975 mm
26.909 mm
126000 N
119000 N
546
535
49.982 mm
36.957 mm
172000 N
206000 N
28579
28500
49.987 mm
25.400 mm
98900 N
130000 N
378A
375
49.987 mm
22.225 mm
87900 N
101000 N
55194
55000
49.987 mm
26.909 mm
106000 N
119000 N
55195
55000
49.987 mm
26.909 mm
106000 N
119000 N
HH506349
N/A
49.987 mm
44.45 mm
246000 N
290000 N
L305648
L305600
49.987 mm
18.258 mm
60800 N
88800 N
LM104947A
N/A
49.987 mm
22.225 mm
96300 N
104000 N
365
365
50 mm
22.225 mm
102000 N
95800 N
366
365
50 mm
22.225 mm
102000 N
95800 N
396
395
50 mm
21.996 mm
98900 N
125000 N
465
455
50 mm
29.317 mm
161000 N
166000 N
529A
525
50 mm
36.068 mm
165000 N
191000 N
NA366
N/A
50 mm
25.005 mm
N/A
CAD
18200
18000
50.8 mm
18.263 mm
61100 N
63900 N
18790
18700
50.8 mm
17.463 mm
54700 N
67500 N