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
NA55200
N/A
50.8 mm
32.544 mm
N/A
CAD
NA3780SW
N/A
50.8 mm
32.544 mm
N/A
CAD
NA455SW
N/A
50.8 mm
32.545 mm
N/A
CAD
368-S
365
51.592 mm
22.225 mm
102000 N
95800 N
18204X
18000
51.999 mm
18.263 mm
51600 N
63900 N
28584
28500
52.388 mm
25.400 mm
98900 N
130000 N
33890
33800
52.388 mm
28.575 mm
130000 N
161000 N
33891
33800
52.388 mm
28.575 mm
130000 N
161000 N
3767
3700
52.388 mm
30.302 mm
122000 N
153000 N
3767A
3700
52.388 mm
30.302 mm
122000 N
153000 N
3767AA
3700
52.388 mm
30.302 mm
113000 N
153000 N
377
375
52.388 mm
22.225 mm
104000 N
101000 N
377A
375
52.388 mm
22.225 mm
87900 N
101000 N
380
375
52.388 mm
21.034 mm
104000 N
101000 N
468
455
52.388 mm
29.317 mm
161000 N
166000 N
540
535
52.388 mm
36.957 mm
172000 N
206000 N
55206
55000
52.388 mm
26.909 mm
126000 N
119000 N
55206C
55000C
52.388 mm
26.909 mm
151000 N
161000 N
33895
33800
53.975 mm
28.575 mm
130000 N
161000 N
33895N
33800
53.975 mm
28.575 mm
154000 N
161000 N
389A
385
53.975 mm
21.946 mm
108000 N
107000 N
389AS
385
53.975 mm
21.946 mm
108000 N
107000 N
39578
39500
53.975 mm
30.163 mm
167000 N
224000 N
45287
45200
53.975 mm
30.958 mm
153000 N
189000 N