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
61903-2RS/VSL609
C0 (Normal)
17 mm
Contact Seals
30 mm
7 mm
4600 N
2600 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
61816-ZZ
C0 (Normal)
80 mm
Shields
100 mm
10 mm
12700 N
13300 N
6000 rpm
7100 rpm
61884MA
C0 (Normal)
420 mm
Open
520 mm
46 mm
251000 N
393000 N
950 rpm
1200 rpm
61801/VSL609
C0 (Normal)
12 mm
Open
21 mm
5 mm
1900 N
1000 N
N/A
CAD
61916
C0 (Normal)
80 mm
Open
110 mm
16 mm
23900 N
23900 N
5600 rpm
6700 rpm
61888MA
C0 (Normal)
440 mm
Open
540 mm
46 mm
255000 N
405000 N
900 rpm
1100 rpm
61801-2RS/VSL609
C0 (Normal)
12 mm
Contact Seals
21 mm
5 mm
1900 N
1000 N
N/A
CAD
61916-2RS
C0 (Normal)
80 mm
Contact Seals
110 mm
16 mm
23900 N
23900 N
5600 rpm
6700 rpm
61892MA
C0 (Normal)
460 mm
Open
580 mm
56 mm
311000 N
515000 N
900 rpm
1100 rpm
61802/VSL609
C0 (Normal)
15 mm
Open
24 mm
5 mm
2100 N
1300 N
N/A
CAD
61916-ZZ
C0 (Normal)
80 mm
Shields
110 mm
16 mm
23900 N
23900 N
5600 rpm
6700 rpm
61896MA
C0 (Normal)
480 mm
Open
600 mm
56 mm
325000 N
560000 N
850 rpm
1000 rpm