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
26822-B
26800
79.375 mm
19.05 mm
31520-B
31500
76.2 mm
23.813 mm
36620-B
36600
193.675 mm
23.020 mm
2720-B
2700
76.2 mm
19.05 mm
3320-B
3300
80.167 mm
23.813 mm
3720-B
3700
93.264 mm
23.813 mm
275158-B
275000
403.225 mm
46.038 mm
3329-B
3300
81.755 mm
23.813 mm
37625-B
37000
158.750 mm
15.875 mm
27620-B
27600
125.413 mm
19.845 mm
332-B
335
80 mm
17.826 mm
3820-B
3800
85.725 mm
23.813 mm
28315-B
28000
80 mm
15.875 mm
333197-B
333000
501.650 mm
69.85 mm
382-B
385
96.838 mm
17.826 mm
28521-B
28500
92.075 mm
19.845 mm
33462-B
33000
117.475 mm
23.813 mm
3920-B
3900
112.713 mm
23.813 mm
28622-B
28600
97.630 mm
19.446 mm
33820-B
33800
93.264 mm
22.225 mm