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
NA776
N/A
95.250 mm
52.3875 mm
N/A
CAD
NA776SW
N/A
95.250 mm
52.3875 mm
N/A
CAD
42381
42000
96.838 mm
28.971 mm
193000 N
241000 N
90381
N/A
96.838 mm
46.038 mm
383000 N
392000 N
52387
52000
98.425 mm
36.116 mm
223000 N
343000 N
52387P
52000
98.425 mm
36.116 mm
265000 N
343000 N
52387W
52000
98.425 mm
36.116 mm
223000 N
343000 N
685
675
98.425 mm
41.275 mm
265000 N
386000 N
779
775
98.425 mm
48.006 mm
346000 N
495000 N
866
855
98.425 mm
57.531 mm
458000 N
630000 N
943
935
98.425 mm
66.675 mm
572000 N
786000 N
HH221442
HH221400
98.425 mm
57.531 mm
534000 N
692000 N
HH224332
HH224300
98.425 mm
66.675 mm
680000 N
906000 N
HH421246C
N/A
98.425 mm
63.5 mm
628000 N
772000 N
HH421246CV
N/A
98.425 mm
63.5 mm
628000 N
772000 N
HM321245
N/A
99.212 mm
49.213 mm
346000 N
486000 N
98393
98000
99.898 mm
49.213 mm
482000 N
519000 N
HM120846
HM120800
99.957 mm
49.213 mm
270000 N
431000 N
HM921343V
HM921300
89.916 mm
36.513 mm
340000 N
338000 N
98354
98000
89.974 mm
49.213 mm
482000 N
519000 N
HM218248
N/A
89.974 mm
40.000 mm
325000 N
388000 N
M919048
M919000
89.980 mm
30.163 mm
203000 N
246000 N
69354
N/A
89.992 mm
30.163 mm
181000 N
230000 N
42354X
42000
90 mm
28.971 mm
163000 N
241000 N