Fafnir® Large Imperial Ball Bearings (XLS, BIC)

**TIMKEN® Deep Groove Ball Bearings – Fafnir® Large Imperial Series (XLS, BIC): Precision, Durability & Performance**

For over a century, TIMKEN has been a global leader in engineered bearings and mechanical power transmission solutions, delivering unmatched reliability in the most demanding applications. Among its extensive portfolio, the **Fafnir® Large Imperial Ball Bearings (XLS, BIC series)** stand out as a benchmark for performance in deep groove ball bearing technology. Designed for heavy-duty industrial, automotive, and precision equipment applications, these bearings combine superior materials, precision engineering, and innovative design to maximize service life, reduce friction, and optimize load capacity.

### **Technical Features & Engineering Excellence**
TIMKEN’s **Deep Groove Ball Bearings** in the **XLS (Extra Large Series) and BIC (Bore-In-Cage) configurations** are engineered to handle radial and moderate axial loads with exceptional efficiency. Key features include:

– **High-Grade Steel Construction:** Manufactured from premium alloy steels, these bearings undergo stringent heat treatment processes to enhance hardness, fatigue resistance, and durability under high-stress conditions.
– **Precision Ground Raceways:** Optimized groove geometry ensures smooth rolling motion, minimizing vibration and noise while maintaining consistent performance at high speeds.
– **Robust Cage Designs:** Depending on the series, bearings feature reinforced cages (e.g., machined brass or pressed steel) to withstand heavy loads and harsh operating environments.
– **Sealed & Shielded Options:** Available with contact or non-contact seals/shields to protect against contaminants while retaining lubrication for extended maintenance intervals.
– **Interchangeability:** Conforms to ABMA/ANSI standards, ensuring compatibility with legacy industrial systems.

### **Performance Advantages**
TIMKEN’s Fafnir® Large Imperial Ball Bearings excel where reliability is non-negotiable:

– **Extended Service Life:** Advanced steel cleanliness and surface finish reduce micropitting and wear, even in contaminated environments.
– **High-Speed Capability:** Precision balancing and optimized internal geometry allow for stable operation at elevated RPMs.
– **Versatile Load Handling:** Deep groove design accommodates combined radial and axial loads, making them ideal for applications with dynamic force variations.
– **Reduced Friction & Energy Loss:** Low-torque designs improve efficiency, lowering operational costs in continuous-duty systems.

### **Typical Applications**
These bearings are trusted across industries where precision and robustness are critical:

– **Industrial Machinery:** Pumps, compressors, gearboxes, and conveyor systems requiring high load capacity and resistance to misalignment.
– **Automotive Systems:** Wheel hubs, transmissions, and electric vehicle components demanding low-noise, high-speed performance.
– **Precision Equipment:** Medical devices, robotics, and aerospace actuators where smooth motion and reliability are paramount.

Whether in heavy industrial settings or high-tech applications, TIMKEN’s **Fafnir® Large Imperial Ball Bearings** deliver the durability, precision, and performance that engineers and maintenance professionals rely on. Backed by TIMKEN’s global technical support and warranty assurance, these bearings represent a smart investment in reducing downtime and improving operational efficiency.

For specifications, load ratings, or customization options, consult TIMKEN’s engineering resources to select the optimal bearing solution for your application.

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Part Number d - Bore D - Outer Diameter Bearing Width C0 - Static Radial Rating Ce - Dynamic Radial Rating Limiting Speed (Grease) Limiting Speed (Oil) Ball Type
XLS64K2
N/A
142.85 mm
22.225 mm
41902 N
47151 N
2480 rpm
2890 rpm
STEEL
XLS76K2
N/A
165.1 mm
22.225 mm
56937 N
60941 N
2110 rpm
2460 rpm
STEEL
XLS80K2
N/A
177.775 mm
25.4 mm
67168 N
72506 N
1950 rpm
2280 rpm
STEEL
90BIC401B2
N/A
304.8 mm
38.1 mm
177484 N
167253 N
1120 rpm
1310 rpm
STEEL
95BIC430 B3
N/A
323.85 mm
41.275 mm
202394 N
188160 N
1060 rpm
1240 rpm
STEEL
105BIC470B2
N/A
355.6 mm
44.45 mm
255773 N
222856 N
960 rpm
1120 rpm
STEEL
110BIC479B3
N/A
368.275 mm
44.45 mm
255328 N
221077 N
930 rpm
1080 rpm
STEEL
120BIC519B3
N/A
406.400 mm
50.8 mm
315824 N
256662 N
840 rpm
980 rpm
STEEL
250BIC804CC824B2
N/A
685.800 mm
25.4 mm
237535 N
118768 N
454 rpm
530 rpm
STEEL
XLS56K2
N/A
127 mm
19.05 mm
31493 N
36386 N
2790 rpm
3260 rpm
STEEL
XLS60K2
N/A
133.350 mm
19.05 mm
35141 N
38522 N
2620 rpm
3060 rpm
STEEL