61856
618 & 619 Series Thin Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
61856
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
6.39 kg
Tolerance class
P6
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
280 mm
Bore diameter tolerance
-0.025mm to 0
Outside diameter
350 mm
Outside diameter tolerance
-0.028mm to 0
Width
33 mm
Width tolerance
-0.35mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
31024 lbf
Radial static load rating
44962 lbf
Limiting speed
2.2 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:
$ 863.55
/ each
In Stock
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61856 Bearing Product Overview & Core Advantages
The 61856 metric ball bearing is a high-precision, single row deep groove ball bearing engineered for exceptional performance in demanding applications. Its open design and P6 tolerance class ensure high running accuracy, making it ideal for scenarios requiring precise rotational motion. This bearing is specifically designed to accommodate high radial loads, with a substantial dynamic load rating of 31024 lbf, providing reliable and long-lasting service. Manufactured from high-grade chrome steel for both rings and balls, it offers excellent durability and resistance to wear.
61856 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 61 | Bearing series, indicating a deep groove ball bearing with a specific cross-section. |
| 856 | Bore diameter code. 856 corresponds to a 280 mm bore diameter. |
| Open | No seals or shields, allowing for higher speeds and easy re-lubrication. |
| P6 | Tolerance class, denoting higher precision than standard (P0) bearings. |
| CN | Standard radial internal clearance for normal operating conditions. |
61856 Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: The single row deep groove construction, combined with a P6 tolerance class and tight dimensional tolerances on the bearing dimensions (280mm bore, 350mm OD), ensures high running accuracy and system rigidity for stable operation.
- Superior Load Capacity: Engineered to handle significant radial loads, with a high dynamic load rating of 31024 lbf and a static load rating of 44962 lbf, ensuring reliability under heavy-duty conditions.
- Optimized for High-Speed Operation: The stainless steel cage provides low friction and high strength, contributing to a limiting speed of 2,200 rpm. The open design minimizes heat generation at high rotational velocities.
- Robust Material Construction: Rings and balls made from chrome steel (GCr15) offer high hardness and fatigue resistance. The stainless steel cage enhances corrosion resistance and cage integrity.
- Versatile Operating Range: A wide temperature range from -30°C to 120°C allows for use in various environmental conditions.
61856 Bearing Typical Application Areas
This precision bearing is suited for a wide range of industrial machinery and equipment, including:
- Electric Motors and Generators
- Industrial Gearboxes and Transmission Systems
- Machine Tool Spindles and other precision machinery
- Material Handling Equipment such as conveyor pulleys
- Pumps and Compressors
