61803
618 & 619 Series Thin Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
61803
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.0075 kg
Tolerance class
P6
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
17 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
26 mm
Outside diameter tolerance
-0.008mm to 0
Width
5 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
456 lbf
Radial static load rating
286 lbf
Limiting speed
34 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 10.9
/ each
In Stock
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61803 Bearing Product Overview & Core Advantages
The 61803 is a metric single row deep groove ball bearing engineered for high-precision applications requiring reliable performance in compact spaces. Its open design and P6 tolerance class ensure exceptional running accuracy, making it ideal for applications demanding precise rotational motion. This bearing is characterized by its ability to handle primarily radial loads efficiently, while its optimized internal geometry contributes to low noise and vibration levels. Manufactured from high-grade chrome steel for both rings and balls, it offers excellent durability and a long service life, compliant with both ROHS and REACH standards.
61803 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 61803 | Standard designation for a metric, single row deep groove ball bearing with a 17mm bore, 26mm OD, and 5mm width. |
| Open (Seal Type) | No integral seals or shields, allowing for higher limiting speeds and facilitating custom lubrication schemes if required. |
| P6 (Tolerance Class) | Indicates a tighter dimensional and running accuracy tolerance than standard (P0) bearings, ensuring superior performance in precision applications. |
| CN (Radial Internal Clearance) | Standard normal radial internal clearance group, suitable for most common operating conditions. |
| None (Lubrication) | Supplied without grease, providing flexibility for the user to apply a lubricant specific to their application's speed, temperature, and environmental requirements. |
61803 Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: The single row deep groove construction, combined with a P6 tolerance class and a stainless steel cage, provides excellent rotational accuracy and stability, minimizing runout and vibration.
- Radial Load Capacity: Engineered to carry significant radial loads (dynamic: 456 lbf, static: 286 lbf) within its compact bearing dimensions (17mm bore x 26mm OD x 5mm width), making efficient use of space.
- High-Speed Capability: The open design and lightweight stainless steel cage contribute to a high limiting speed of 34,000 rpm, suitable for demanding high-speed applications.
- Material Durability: Components made from chrome steel (rings and balls) offer high hardness, wear resistance, and a long operational lifespan under standard operating temperatures (-30°C to 120°C).
61803 Bearing Typical Application Areas
This precision bearing is ideally suited for applications where compact size, high speed, and accuracy are paramount. Key sectors and equipment include:
- Small Electric Motors: Spindle and rotor support in miniature and micro motors.
- Precision Instruments: Used in optical encoders, measuring devices, and laboratory equipment.
- Office Automation: Critical components in printers, scanners, and copiers.
- Medical Devices: Small drives and pumps within diagnostic and analytical equipment.
- Computer Peripherals: Hard disk drive spindles and cooling fan motors.
