61968 M
618 & 619 Series Thin Section Bearings
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Part No.
Part No.
61968 M
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
26.5 kg
Tolerance class
P6
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
340 mm
Bore diameter tolerance
-0.03mm to 0
Outside diameter
460 mm
Outside diameter tolerance
-0.033mm to 0
Width
56 mm
Width tolerance
-0.4mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
63171 lbf
Radial static load rating
95544 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
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In Stock
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61968 M Bearing Product Overview & Core Advantages
The 61968 M is a single row deep groove ball bearing engineered for exceptional performance in demanding applications. This metric bearing features a P6 tolerance class and CN radial internal clearance, ensuring high running accuracy and reliable operation. Its open design allows for versatile lubrication options, while the robust construction using chrome steel rings and balls provides a high radial dynamic load rating of 63,171 lbf, making it an ideal choice for applications requiring superior load capacity and long service life.
61968 M Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| M | Indicates the bearing is manufactured from brass (referring to the cage material, which in this specification is listed as Stainless Steel; please verify specific manufacturer documentation for the "M" designation as it can vary). |
| Open | No seals or shields are fitted, allowing for high-speed operation and the ability to be re-lubricated or use specific lubrication systems. |
| P6 | Denotes a tolerance class superior to normal (P0), providing tighter dimensional and running accuracy. |
| CN | Specifies the normal radial internal clearance group, suitable for most common operating conditions. |
61968 M Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: The single row deep groove design, combined with a P6 tolerance class, ensures high rotational precision and system rigidity, minimizing deflection under load.
- Superior Load Capacity: Engineered to handle significant radial loads (63,171 lbf dynamic, 95,544 lbf static), this bearing is built for durability in heavy-duty applications.
- Optimized for High-Speed Operation: The open design and stainless steel cage contribute to a high limiting speed of 2,200 rpm, reducing friction and heat generation.
- Versatile Lubrication: The absence of integral seals (Open type) allows for custom lubrication strategies, including oil circulation or grease re-lubrication, to suit specific operational needs and extend service intervals.
- Robust Material Construction: Components made from chrome steel offer high hardness and wear resistance, ensuring reliable performance across the specified temperature range of -30°C to 120°C.
61968 M Bearing Typical Application Areas
- Industrial Gearboxes and Drives
- Large Electric Motors
- Pump and Compressor Shafts
- Material Handling Equipment (e.g., conveyor pulleys)
- Heavy-Duty Machinery and Construction Equipment
- Paper and Steel Mill Machinery
