Thin Section Ball Bearings

**TIMKEN Ball Bearings: Precision Engineered for Demanding Applications**

TIMKEN is a global leader in engineered bearings and mechanical power transmission products, renowned for delivering superior performance, reliability, and durability. Among its extensive portfolio, **TIMKEN Deep Groove Ball Bearings** and **Thin Section Ball Bearings (61800, 61900 series)** stand out as critical components in industrial machinery, automotive systems, and precision equipment. These bearings are designed to handle radial and axial loads with exceptional efficiency, ensuring smooth operation and extended service life even in the most demanding environments.

### **Technical Features & Performance Advantages**

**Deep Groove Ball Bearings**
TIMKEN’s Deep Groove Ball Bearings are engineered for versatility, featuring deep raceway grooves that enable high-speed operation while accommodating both radial and moderate axial loads. Key benefits include:
– **Optimized Load Distribution:** Precision-ground raceways and high-quality steel construction ensure even load distribution, reducing wear and extending bearing life.
– **Low Friction & High Efficiency:** Advanced sealing options (such as shields or rubber seals) minimize friction and contamination, making them ideal for electric motors, pumps, and gearboxes.
– **Robust Construction:** Manufactured from premium chrome steel or corrosion-resistant materials, these bearings withstand harsh operating conditions, including high temperatures and heavy loads.

**Thin Section Ball Bearings (61800, 61900 Series)**
TIMKEN’s Thin Section Ball Bearings are designed for applications where space and weight savings are critical, without compromising performance. These bearings feature:
– **Compact, Lightweight Design:** With ultra-thin cross-sections, they are ideal for robotics, aerospace, medical equipment, and semiconductor machinery.
– **High Precision & Rigidity:** Tight tolerances and superior roundness ensure smooth motion control in precision applications.
– **Multiple Configurations:** Available in open, shielded, or sealed variants, with options for radial, angular contact, or four-point contact designs.

### **Typical Applications**
TIMKEN’s Deep Groove and Thin Section Ball Bearings are widely used across industries, including:
– **Industrial Machinery:** Conveyors, machine tools, and electric motors benefit from their durability and low maintenance.
– **Automotive Systems:** Alternators, transmissions, and wheel hubs rely on their high-speed capabilities and load resistance.
– **Precision Equipment:** Medical devices, robotics, and optical systems utilize thin-section bearings for their compactness and accuracy.

With a legacy of innovation and precision engineering, TIMKEN continues to set the standard for performance in ball bearing technology, ensuring optimal efficiency and reliability for critical applications worldwide. Whether in high-speed industrial equipment or compact precision instruments, TIMKEN bearings deliver unmatched performance and longevity.

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Part Number Clearance Bore Size d Features Outside Diameter D Outside Ring Width B Cr - Dynamic Load Rating C0r - Static Load Rating Grease Limiting Speed Oil Reference Speed
61906-2RZ
C0 (Normal)
30 mm
Non-Contact Seals
47 mm
9 mm
7200 N
5000 N
14000 rpm
17000 rpm
61807
C0 (Normal)
35 mm
Open
47 mm
7 mm
4700 N
3800 N
13000 rpm
16000 rpm
61807-ZZ
C0 (Normal)
35 mm
Shields
47 mm
7 mm
4700 N
3800 N
13000 rpm
16000 rpm
61807-2RS
C0 (Normal)
35 mm
Contact Seals
47 mm
7 mm
4700 N
3800 N
13000 rpm
16000 rpm
61807-2RZ
C0 (Normal)
35 mm
Non-Contact Seals
47 mm
7 mm
4700 N
3800 N
13000 rpm
16000 rpm
61907
C0 (Normal)
35 mm
Open
55 mm
10 mm
10900 N
7800 N
12000 rpm
14000 rpm
61907-ZZ
C0 (Normal)
35 mm
Shields
55 mm
10 mm
10900 N
7800 N
12000 rpm
14000 rpm
61907-2RS
C0 (Normal)
35 mm
Contact Seals
55 mm
10 mm
10900 N
7800 N
12000 rpm
14000 rpm
61907-2RZ
C0 (Normal)
35 mm
Non-Contact Seals
55 mm
10 mm
10900 N
7800 N
12000 rpm
14000 rpm
61808
C0 (Normal)
40 mm
Open
52 mm
7 mm
4900 N
4200 N
12000 rpm
14000 rpm
61808-ZZ
C0 (Normal)
40 mm
Shields
52 mm
7 mm
4900 N
4200 N
12000 rpm
14000 rpm
61808-2RS
C0 (Normal)
40 mm
Contact Seals
52 mm
7 mm
4900 N
4200 N
12000 rpm
14000 rpm
61808-2RZ
C0 (Normal)
40 mm
Non-Contact Seals
52 mm
7 mm
4900 N
4200 N
12000 rpm
14000 rpm
61908
C0 (Normal)
40 mm
Open
62 mm
12 mm
13700 N
9900 N
11000 rpm
13000 rpm
61908-ZZ
C0 (Normal)
40 mm
Shields
62 mm
12 mm
13700 N
9900 N
11000 rpm
13000 rpm
61908-2RS
C0 (Normal)
40 mm
Contact Seals
62 mm
12 mm
13700 N
9900 N
11000 rpm
13000 rpm
61908-2RZ
C0 (Normal)
40 mm
Non-Contact Seals
62 mm
12 mm
13700 N
9900 N
11000 rpm
13000 rpm
61809
C0 (Normal)
45 mm
Open
58 mm
7 mm
6200 N
5400 N
11000 rpm
13000 rpm
61809-ZZ
C0 (Normal)
45 mm
Shields
58 mm
7 mm
6200 N
5400 N
11000 rpm
13000 rpm
61809-2RS
C0 (Normal)
45 mm
Contact Seals
58 mm
7 mm
6200 N
5400 N
11000 rpm
13000 rpm
61809-2RZ
C0 (Normal)
45 mm
Non-Contact Seals
58 mm
7 mm
6200 N
5400 N
11000 rpm
13000 rpm
61909
C0 (Normal)
45 mm
Open
68 mm
12 mm
14100 N
10900 N
10000 rpm
11000 rpm
61909-ZZ
C0 (Normal)
45 mm
Shields
68 mm
12 mm
14100 N
10900 N
10000 rpm
11000 rpm
61909-2RS
C0 (Normal)
45 mm
Contact Seals
68 mm
12 mm
14100 N
10900 N
10000 rpm
11000 rpm