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
342-S
335
42.875 mm
22.403 mm
94300 N
83400 N
16986
N/A
42.987 mm
19.837 mm
59500 N
73500 N
17886
N/A
42.987 mm
20.638 mm
68900 N
83300 N
342X
335
43.000 mm
22.403 mm
94300 N
83400 N
NA22171
N/A
43.658 mm
22.225 mm
N/A
CAD
12175
12000
44.450 mm
17.145 mm
49500 N
58100 N
13175
N/A
44.450 mm
17.463 mm
50800 N
61100 N
18685
18600
44.450 mm
17.463 mm
52000 N
61300 N
25580
25500
44.450 mm
25.400 mm
90500 N
111000 N
25581
25500
44.450 mm
25.400 mm
90500 N
111000 N
25582
25500
44.450 mm
25.400 mm
90500 N
111000 N
25583
25500
44.450 mm
35.878 mm
90500 N
111000 N
2975
2900
44.450 mm
25.608 mm
93300 N
117000 N
33885
33800
44.450 mm
28.575 mm
130000 N
161000 N
33885N
33800
44.450 mm
28.575 mm
154000 N
161000 N
35175
35000
44.450 mm
23.012 mm
82800 N
89200 N
35176
35000
44.450 mm
23.012 mm
98100 N
89200 N
355
355
44.450 mm
21.692 mm
97000 N
88800 N
355A
355
44.450 mm
21.692 mm
97000 N
88800 N
355X
355
44.450 mm
21.692 mm
97000 N
88800 N
3578
3500
44.450 mm
30.886 mm
113000 N
134000 N
3578A
3500
44.450 mm
30.886 mm
113000 N
134000 N
3578AA
3500
44.450 mm
30.886 mm
113000 N
134000 N
3760
3700
44.450 mm
36.652 mm
122000 N
153000 N