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
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
125145-B
125000
368.300 mm
53.975 mm
19268-B
19000
68.263 mm
11.908 mm
126150-B
126000
381.000 mm
57.150 mm
19283-B
19000
71.999 mm
14.288 mm
128160-B
128000
406.400 mm
53.975 mm
1931-B
1900
60.325 mm
15.875 mm
1328-B
1300
52.388 mm
14.288 mm
1932-B
1900
58.738 mm
15.080 mm
13836-B
13800
65.088 mm
9.525 mm
203190-B
203000
482.600 mm
44.45 mm
14276-B
14000
69.012 mm
15.875 mm
21212-B
21000
53.975 mm
15.875 mm
02420-B
02400
68.263 mm
17.463 mm
15250-B
15000
63.500 mm
15.875 mm
221575-B
220000
400.050 mm
46.038 mm
05185-B
05000
47 mm
11.113 mm
15520-B
15500
57.150 mm
13.495 mm