Thin Section Ball Bearings (61800, 61900)

**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
61905H-2RS/VSL609
C0 (Normal)
25 mm
Contact Seals
42 mm
9 mm
7000 N
4600 N
N/A
CAD
61906-2RS/VSL609
C0 (Normal)
30 mm
Contact Seals
47 mm
9 mm
7200 N
5000 N
N/A
CAD
61907-2RS/VSL609
C0 (Normal)
35 mm
Contact Seals
55 mm
10 mm
10900 N
7800 N
N/A
CAD
61908-2RS/VSL609
C0 (Normal)
40 mm
Contact Seals
62 mm
12 mm
13700 N
9900 N
N/A
CAD
61909-2RS/VSL609
C0 (Normal)
45 mm
Contact Seals
68 mm
12 mm
14100 N
10900 N
N/A
CAD
61910-2RS/VSL609
C0 (Normal)
50 mm
Contact Seals
72 mm
12 mm
14500 N
11700 N
N/A
CAD
61911-2RS/VSL609
C0 (Normal)
55 mm
Contact Seals
80 mm
13 mm
16600 N
14100 N
N/A
CAD
61912-2RS/VSL609
C0 (Normal)
60 mm
Contact Seals
85 mm
13 mm
20200 N
17300 N
N/A
CAD
61905H-2RS/FVSL613
C0 (Normal)
25 mm
Contact Seals
42 mm
9 mm
7000 N
4600 N
N/A
CAD
61807/VSL609
C0 (Normal)
35 mm
Open
47 mm
7 mm
4700 N
3800 N
N/A
CAD
61815/VSL609
C0 (Normal)
75 mm
Open
95 mm
10 mm
12500 N
12800 N
N/A
CAD
61904-2RS/VSL609
C0 (Normal)
20 mm
Contact Seals
37 mm
9 mm
6400 N
3700 N
N/A
CAD
61807-2RS/VSL609
C0 (Normal)
35 mm
Contact Seals
47 mm
7 mm
4700 N
3800 N
N/A
CAD
61815-2RS/VSL609
C0 (Normal)
75 mm
Contact Seals
95 mm
10 mm
12500 N
12800 N
N/A
CAD
61905-2RS/VSL609
C0 (Normal)
25 mm
Contact Seals
42 mm
9 mm
7000 N
4600 N
N/A
CAD
61808/VSL609
C0 (Normal)
40 mm
Open
52 mm
7 mm
4900 N
4200 N
N/A
CAD
61816/VSL609
C0 (Normal)
80 mm
Open
100 mm
10 mm
12700 N
13300 N
N/A
CAD
61808-2RS/VSL609
C0 (Normal)
40 mm
Contact Seals
52 mm
7 mm
4900 N
4200 N
N/A
CAD
61816-2RS/VSL609
C0 (Normal)
80 mm
Contact Seals
100 mm
10 mm
12700 N
13300 N
N/A
CAD
61809/VSL609
C0 (Normal)
45 mm
Open
58 mm
7 mm
6200 N
5400 N
N/A
CAD