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
453XB
455
107.95 mm
24.605 mm
494-B
495
140 mm
22.225 mm
394AB
395
110 mm
18.824 mm
454AB
455
109.949 mm
22.225 mm
49520-B
49500
101.600 mm
25.4 mm
39520-B
39500
112.713 mm
23.813 mm
46720-B
46700
225.425 mm
33.338 mm
522-B
525
101.600 mm
26.988 mm
39520-BXX
39500
112.713 mm
23.813 mm
470132-B
470000
336.550 mm
63.500 mm
52618-B
52000
157.163 mm
26.195 mm
41286-B
41000
72.626 mm
17.463 mm
472-B
475
120 mm
24.237 mm
526190-B
526000
482.600 mm
60.325 mm
421437-B
420000
365.049 mm
63.500 mm
47620-B
47600
133.350 mm
26.195 mm
52630XB
52000
160 mm
26.195 mm
42587-B
42000
149.225 mm
24.608 mm
47622-BW
47600
136.525 mm
51.595 mm
52637-B
52000
161.925 mm
26.195 mm
42620-B
42600
127 mm
22.225 mm
47623AB
47600
136.525 mm
38.1 mm
532-B
535
111.125 mm
30.163 mm
42623-B
42600
130 mm
22.225 mm