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
850A
835
89.891 mm
56.363 mm
409000 N
522000 N
HM921343
HM921300
89.916 mm
36.513 mm
287000 N
338000 N
HM516448
HM516400
82.550 mm
39.688 mm
259000 N
353000 N
HM516449A
HM516400
82.550 mm
39.688 mm
259000 N
353000 N
HM516449C
HM516400
82.550 mm
39.688 mm
259000 N
353000 N
HM617045
HM617000
82.550 mm
42.863 mm
261000 N
399000 N
KHM516449
N/A
82.550 mm
39.688 mm
218000 N
353000 N
L116149
L116100
82.550 mm
21.433 mm
90200 N
147000 N
LL116249
N/A
82.550 mm
15.083 mm
70900 N
87000 N
LM716449
N/A
82.550 mm
26.988 mm
135000 N
187000 N
NA580
N/A
82.550 mm
41.275 mm
N/A
CAD
NA749
N/A
82.550 mm
50.8 mm
N/A
CAD
NA842
N/A
82.550 mm
62.706 mm
N/A
CAD
NA580SW
N/A
82.550 mm
46.0375 mm
N/A
CAD
27689
27600
83.345 mm
25.400 mm
117000 N
178000 N
27689H
27600
83.345 mm
25.400 mm
111000 N
178000 N
27690
27600
83.345 mm
25.400 mm
117000 N
178000 N
27691
27600
83.345 mm
25.400 mm
117000 N
178000 N
47688
47600
83.345 mm
33.338 mm
214000 N
262000 N
498
495
84.138 mm
29.769 mm
154000 N
216000 N
664
655
84.138 mm
41.275 mm
247000 N
335000 N
9386H
9300
84.138 mm
46.038 mm
363000 N
351000 N
H919942
N/A
84.138 mm
48.999 mm
373000 N
458000 N
H919942H
N/A
84.138 mm
48.999 mm
442000 N
458000 N