SKF Bearings 6311-2Z Bearing
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SKF Bearings 6311-2Z Bearing

SKF Bearings 6311-2Z Bearing

For high-demand HVACR applications requiring dependable performance in electric motors and blowers, the SKF 6311-2Z Bearing stands as an industry standard. This single row deep groove ball bearing is engineered with a 55mm bore, 120mm outside diameter, and a 29mm width, making it a drop-in replacement for standard 6311 series frames. As an SKF Explorer class component, it is manufactured to tighter tolerances to minimize friction and heat generation during continuous operation. The double shielded closure (2Z) utilizes non-contact metallic shields to retain factory-applied grease while protecting the steel cage and internal raceways from large contaminants without increasing rotational torque. With a C0 internal clearance, this radial ball bearing is optimized for applications where thermal expansion is standard but precision is paramount. Designed to handle both radial and axial loads at high speeds, it ensures rotational stability in industrial pump motors and heavy-duty ventilation systems.

Key Benefits
  • Reduced Operational Friction: Precision-ground raceways lower energy consumption and temperature rise in motor housings.
  • Maintenance-Free Design: Factory-lubricated and shielded on both sides to prevent grease leakage in vertical or horizontal mounting.
  • High Load Capacity: Rated for significant dynamic and static loads, providing structural integrity under belt-drive tension.
  • Metallic Protection: Dual steel shields offer robust protection against debris in mechanical rooms without the speed limitations of contact seals.
Common Questions

Is the SKF 6311-2Z suitable for high-speed electric motors?
Yes, the non-contact shields allow for higher limiting speeds compared to RS-style contact seals, making it ideal for 1800 and 3600 RPM motor applications.

Does this bearing require additional lubrication?
No, the 2Z designation indicates it is shielded on both sides and pre-filled with high-quality grease intended for the duration of the component's service life.

Can this bearing handle thrust loads?
While primarily designed for radial loads, the deep-groove geometry allows it to accommodate moderate axial (thrust) loads in both directions.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

$241.70
SKF Bearings 6311-2Z Bearing
$241.70

SKF Bearings 6311-2Z Bearing

For high-demand HVACR applications requiring dependable performance in electric motors and blowers, the SKF 6311-2Z Bearing stands as an industry standard. This single row deep groove ball bearing is engineered with a 55mm bore, 120mm outside diameter, and a 29mm width, making it a drop-in replacement for standard 6311 series frames. As an SKF Explorer class component, it is manufactured to tighter tolerances to minimize friction and heat generation during continuous operation. The double shielded closure (2Z) utilizes non-contact metallic shields to retain factory-applied grease while protecting the steel cage and internal raceways from large contaminants without increasing rotational torque. With a C0 internal clearance, this radial ball bearing is optimized for applications where thermal expansion is standard but precision is paramount. Designed to handle both radial and axial loads at high speeds, it ensures rotational stability in industrial pump motors and heavy-duty ventilation systems.

Key Benefits
  • Reduced Operational Friction: Precision-ground raceways lower energy consumption and temperature rise in motor housings.
  • Maintenance-Free Design: Factory-lubricated and shielded on both sides to prevent grease leakage in vertical or horizontal mounting.
  • High Load Capacity: Rated for significant dynamic and static loads, providing structural integrity under belt-drive tension.
  • Metallic Protection: Dual steel shields offer robust protection against debris in mechanical rooms without the speed limitations of contact seals.
Common Questions

Is the SKF 6311-2Z suitable for high-speed electric motors?
Yes, the non-contact shields allow for higher limiting speeds compared to RS-style contact seals, making it ideal for 1800 and 3600 RPM motor applications.

Does this bearing require additional lubrication?
No, the 2Z designation indicates it is shielded on both sides and pre-filled with high-quality grease intended for the duration of the component's service life.

Can this bearing handle thrust loads?
While primarily designed for radial loads, the deep-groove geometry allows it to accommodate moderate axial (thrust) loads in both directions.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

Product Information

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Description

For high-demand HVACR applications requiring dependable performance in electric motors and blowers, the SKF 6311-2Z Bearing stands as an industry standard. This single row deep groove ball bearing is engineered with a 55mm bore, 120mm outside diameter, and a 29mm width, making it a drop-in replacement for standard 6311 series frames. As an SKF Explorer class component, it is manufactured to tighter tolerances to minimize friction and heat generation during continuous operation. The double shielded closure (2Z) utilizes non-contact metallic shields to retain factory-applied grease while protecting the steel cage and internal raceways from large contaminants without increasing rotational torque. With a C0 internal clearance, this radial ball bearing is optimized for applications where thermal expansion is standard but precision is paramount. Designed to handle both radial and axial loads at high speeds, it ensures rotational stability in industrial pump motors and heavy-duty ventilation systems.

Key Benefits
  • Reduced Operational Friction: Precision-ground raceways lower energy consumption and temperature rise in motor housings.
  • Maintenance-Free Design: Factory-lubricated and shielded on both sides to prevent grease leakage in vertical or horizontal mounting.
  • High Load Capacity: Rated for significant dynamic and static loads, providing structural integrity under belt-drive tension.
  • Metallic Protection: Dual steel shields offer robust protection against debris in mechanical rooms without the speed limitations of contact seals.
Common Questions

Is the SKF 6311-2Z suitable for high-speed electric motors?
Yes, the non-contact shields allow for higher limiting speeds compared to RS-style contact seals, making it ideal for 1800 and 3600 RPM motor applications.

Does this bearing require additional lubrication?
No, the 2Z designation indicates it is shielded on both sides and pre-filled with high-quality grease intended for the duration of the component's service life.

Can this bearing handle thrust loads?
While primarily designed for radial loads, the deep-groove geometry allows it to accommodate moderate axial (thrust) loads in both directions.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.