Timken® Double RowAngular Contact Ball Bearings

**TIMKEN® Double Row Angular Contact Ball Bearings (3200, 3300 Series): Precision Performance for Demanding Applications**

TIMKEN® Double Row Angular Contact Ball Bearings (3200 and 3300 Series) are engineered to deliver exceptional load capacity, rigidity, and precision in high-performance industrial and automotive applications. Combining advanced steel technology with precision manufacturing, these bearings are designed to handle combined radial and axial loads in both directions while maintaining smooth operation at high speeds. Their robust construction and optimized internal geometry make them ideal for applications requiring superior accuracy, durability, and reliability.

### **Technical Features & Design Advantages**
TIMKEN’s Double Row Angular Contact Ball Bearings feature a two-row ball-and-raceway configuration, enabling them to support higher radial and axial loads compared to single-row designs. Key technical features include:

– **Optimized Contact Angle (25° or 40°):** The precision-machined raceways and carefully calculated contact angles ensure efficient load distribution, reducing stress concentrations and extending bearing life.
– **High-Grade Steel Construction:** Manufactured from premium clean steel, these bearings offer superior fatigue resistance and wear performance, even in harsh operating conditions.
– **Precision Ground Components:** Tight tolerances and advanced grinding techniques minimize vibration and noise, making them suitable for high-speed applications.
– **Sealed & Shielded Options:** Available with contact or non-contact seals/shields to protect against contamination while retaining lubrication.
– **Pre-Lubrication for Long Service Life:** Factory-applied high-performance grease ensures smooth operation and reduces maintenance requirements.

### **Performance Benefits**
TIMKEN’s 3200 and 3300 Series bearings excel in applications where reliability and precision are critical. Their double-row design provides:
– **Increased Load Capacity:** Supports higher radial and axial loads than single-row bearings, reducing the need for multiple bearing arrangements.
– **Enhanced Rigidity:** Minimizes deflection under heavy loads, improving accuracy in precision machinery.
– **High-Speed Capability:** Optimized internal geometry reduces friction and heat generation, enabling stable performance at elevated RPMs.
– **Extended Service Life:** Advanced materials and precision manufacturing reduce wear, lowering total cost of ownership.

### **Typical Applications**
These bearings are widely used in industries requiring robust, high-precision rotational systems, including:
– **Industrial Machinery:** Machine tool spindles, pumps, compressors, and gearboxes where high rigidity and load capacity are essential.
– **Automotive Systems:** Wheel hubs, transmissions, and electric vehicle motors demanding durability and efficiency.
– **Precision Equipment:** Robotics, medical devices, and aerospace components requiring smooth, low-friction motion.

For engineers and designers seeking a high-performance solution for complex load conditions, TIMKEN® Double Row Angular Contact Ball Bearings (3200, 3300 Series) provide unmatched reliability, efficiency, and longevity—ensuring optimal performance in the most demanding environments.

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Part Number d - Bore Features D - Outer Diameter C - Ring Width Contact Angle C0 - Static Radial Rating C1 ISO - Dynamic Radial Rating Cage Material
3310 AJ
50 mm
Open
110 mm
44.4 mm
30 º
60100 N
78900 N
Steel
3309 AJ
45 mm
Open
100 mm
39.7 mm
30 º
49600 N
66400 N
Steel
3310 ATN1/C3
50 mm
Open
110 mm
44.4 mm
30 º
60100 N
78900 N
Nylon
3309 ATN1/C3
45 mm
Open
100 mm
39.7 mm
30 º
49600 N
66400 N
Nylon
3310 AJ/C3
50 mm
Open
110 mm
44.4 mm
30 º
60100 N
78900 N
Steel
3308 AJ/C3
40 mm
Open
90 mm
36.5 mm
30 º
44200 N
60500 N
Steel
3309 AJ/C3
45 mm
Open
100 mm
39.7 mm
30 º
49600 N
66400 N
Steel
3211 AJ
55 mm
Open
100 mm
33.3 mm
30 º
47900 N
56900 N
Steel
3308 ATN1/2RSC3
40 mm
Contact Seals
90 mm
36.5 mm
30 º
44200 N
60500 N
Polyamide
3210 ATN1
50 mm
Open
90 mm
30.2 mm
30 º
39900 N
43900 N
Nylon
3211 AJ/2RS
55 mm
Contact Seals
100 mm
33.3 mm
30 º
47900 N
56900 N
Steel
3209 ATN1
45 mm
Open
85 mm
30.2 mm
30 º
32600 N
40000 N
Nylon
3210 AJ
50 mm
Open
90 mm
30.2 mm
30 º
39900 N
43900 N
Steel
3211 AJ/2RSC3
55 mm
Contact Seals
100 mm
33.3 mm
30 º
47900 N
56900 N
Steel
3207 ATN1/ZZC3
35 mm
Shields
72 mm
27 mm
30 º
23700 N
30500 N
Polyamide
3208 ATN1/ZZ
40 mm
Shields
80 mm
30.2 mm
30 º
31800 N
40200 N
Nylon
3207 AJ/C3
35 mm
Open
72 mm
27 mm
30 º
23700 N
30500 N
Steel
3208 AJ/2RS
40 mm
Contact Seals
80 mm
30.2 mm
30 º
31800 N
40200 N
Steel
3207 AJ/2RSC3
35 mm
Contact Seals
72 mm
27 mm
30 º
23700 N
30500 N
Steel
3208 ATN1/2RS
40 mm
Contact Seals
80 mm
30.2 mm
30 º
31800 N
40200 N
Nylon