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
4553
N/A
53.975 mm
46.507 mm
180000 N
237000 N
456
455
53.975 mm
29.317 mm
161000 N
166000 N
4595
N/A
53.975 mm
40.157 mm
180000 N
237000 N
539
535
53.975 mm
36.957 mm
204000 N
206000 N
539A
535
53.975 mm
36.957 mm
204000 N
206000 N
539W
535
53.975 mm
36.957 mm
172000 N
206000 N
55212C
55000C
53.975 mm
26.909 mm
151000 N
161000 N
5577
5500
53.975 mm
43.764 mm
237000 N
327000 N
5578
5500
53.975 mm
43.764 mm
237000 N
327000 N
5578V
5500
53.975 mm
43.764 mm
280000 N
327000 N
385AS
385
50.8 mm
21.946 mm
91000 N
107000 N
385AX
385
50.8 mm
21.946 mm
108000 N
107000 N
39573
39500
50.8 mm
30.163 mm
167000 N
224000 N
39575
39500
50.8 mm
30.163 mm
167000 N
224000 N
3975
3900
50.8 mm
30.048 mm
139000 N
191000 N
398
395
50.8 mm
21.996 mm
98900 N
125000 N
45284
45200
50.8 mm
30.958 mm
153000 N
189000 N
45285
45200
50.8 mm
30.958 mm
153000 N
189000 N
45285A
45200
50.8 mm
30.958 mm
153000 N
189000 N
455
455
50.8 mm
29.317 mm
161000 N
166000 N
455-S
455
50.8 mm
29.317 mm
161000 N
166000 N
455W
455
50.8 mm
29.317 mm
136000 N
166000 N
4580
N/A
50.8 mm
40.157 mm
180000 N
237000 N
49585
49500
50.8 mm
31.750 mm
157000 N
155000 N