Tapered Roller Bearings – Single Flanged Cups – Imperial

Tapered Roller Bearings Product Introduction

**TIMKEN Tapered Roller Bearings: Single Cups & Flanged Cups for Demanding Industrial Applications**

For over a century, TIMKEN has been a global leader in engineered bearings and mechanical power transmission solutions, delivering unmatched reliability and performance in the most demanding applications. Among its flagship products, **TIMKEN Tapered Roller Bearings** stand out for their precision, durability, and ability to handle combined radial and thrust loads. This introduction focuses on two critical variants: **Single Cups (0 Series)** and **Single Flanged Cups (Imperial 261 Series)**, highlighting their technical features, performance advantages, and industrial applications.

### **Technical Features & Design Excellence**
TIMKEN’s **Single Cups (0 Series)** and **Single Flanged Cups (Imperial 261 Series)** are designed for high-load, high-speed, and long-service applications. These bearings feature:

– **Optimized Tapered Geometry** – Precision-engineered rollers and raceways ensure even load distribution, reducing friction and wear.
– **Robust Construction** – Manufactured from premium alloy steel, these bearings undergo advanced heat treatment for superior hardness and fatigue resistance.
– **Flanged Cup Design (261 Series)** – The integrated flange provides secure axial location, simplifying housing design and preventing misalignment in dynamic applications.
– **Interchangeability & Standardization** – Conforming to imperial dimensions, these bearings are compatible with industry-standard housings, ensuring easy replacement and integration.

### **Performance Advantages**
TIMKEN’s tapered roller bearings excel in environments where shock loads, heavy radial/axial forces, and high rotational speeds are present. Key benefits include:

– **Extended Service Life** – Advanced metallurgy and precision grinding minimize wear, reducing maintenance frequency.
– **Enhanced Load Capacity** – The tapered design efficiently manages both radial and thrust loads, making them ideal for combined load scenarios.
– **Reduced Friction & Heat Generation** – Optimized roller profiles and surface finishes enhance lubrication efficiency, lowering operating temperatures.
– **Versatility in Mounting** – Single cups allow for flexible configurations, while flanged cups provide added stability in applications requiring precise axial positioning.

### **Typical Applications**
These bearings are widely used across industries where reliability and precision are critical:

– **Industrial Machinery** – Conveyors, gearboxes, pumps, and mining equipment benefit from their high load capacity and durability.
– **Automotive Systems** – Wheel hubs, transmissions, and differentials rely on tapered roller bearings for smooth power transmission under varying loads.
– **Precision Equipment** – Machine tool spindles and agricultural machinery leverage their ability to maintain accuracy under stress.

### **Conclusion**
TIMKEN’s **Single Cups (0 Series)** and **Single Flanged Cups (Imperial 261 Series)** represent the pinnacle of tapered roller bearing technology, offering engineers a trusted solution for harsh operating conditions. Whether in heavy industry, automotive systems, or precision machinery, these bearings deliver consistent performance, reduced downtime, and long-term cost savings—reinforcing TIMKEN’s legacy as a leader in mechanical power transmission innovation.

For applications demanding strength, precision, and reliability, TIMKEN’s tapered roller bearings remain the industry benchmark.

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Part Number Series D - Cup Outer Diameter C - Cup Widthh
34481-B
34000
122.238 mm
21.430 mm
07204-B
07000
51.994 mm
12.700 mm
17244-B
17000
61.999 mm
14.288 mm
243250-B
243000
634.873 mm
63.500 mm
07210XB
07000
50.8 mm
12.700 mm
1729-B
1700
56.896 mm
15.875 mm
244235-B
244000
596.9 mm
53.975 mm
08231-B
08000
58.738 mm
10.716 mm
17520-B
17500
42.863 mm
13.495 mm
2523-B
2500
69.850 mm
19.05 mm
09195AB
09000
49.225 mm
14.288 mm
18337-B
18000
85.725 mm
12.700 mm
25521-B
25500
83.058 mm
19.05 mm
107105-B
107000
268.288 mm
57.150 mm
18620-B
18600
79.375 mm
13.495 mm
26283-B
26000
71.999 mm
15.875 mm
11300-B
11000
76.2 mm
14.288 mm
18720-B
18700
85.001 mm
13.495 mm
12303-B
12000
76.992 mm
11.908 mm
1922-B
1900
57.150 mm
15.875 mm