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60 Series
Home Deep Groove Ball Bearings 60 Series

6015 Open Deep Groove Ball Bearing | High-RPM Precision Performance | 75×115×20 mm

6015 Open Deep Groove Ball Bearing | High-RPM Precision Performance | 75×115×20 mm

The 6015 is a high-precision, unshielded single-row deep groove ball bearing engineered for high-speed industrial applications. As part of the 6000 "Extra Light" series, it features a slim cross-section that saves space and weight without compromising structural rigidity. With a 75 mm bore and 115 mm outer diameter, this open-type bearing is designed for use in clean environments where lubrication is provided by oil circulation, oil baths, or high-speed grease injection.

6015 Deep Groove Ball Bearing 75x115x20 mm | Open Type | Optimal Lubricant Circulation

By removing physical seals or shields, the 6015 Open bearing achieves the lowest possible rotational torque. This unhindered design allows lubricants to flow directly across the precision-ground raceways, providing superior cooling and lubrication during continuous, high-RPM operation. It is the preferred choice for internal mechanical housings and gearboxes where the bearing is already protected from external debris.

 

6015 Open Deep Groove Ball Bearing | High-RPM Precision Performance | 75×115×20 mm

Comprehensive Applications

The 6015 Open is ideally suited for integrated mechanical systems requiring maximum thermal efficiency:

High-Speed Power Transmission
  • Industrial Reduction Gearboxes
  • Automotive and Truck Transmissions
  • Planetary Drive Systems
  • Power Take-Off (PTO) Units
Precision Manufacturing
  • CNC Machine Tool Spindles (Oil-Misted)
  • Printing and Textile Machinery Rollers
  • Automated Assembly Lines
  • Precision Milling Equipment
Electric Motors & Rotating Machinery
  • Large-Scale AC/DC Motors
  • High-Speed Centrifuges
  • Industrial Fans and Blowers
  • Specialized Generator Supports
Fluid Handling & Processing
  • Chemical Process Pumps
  • High-Volume Centrifugal Pumps
  • Rotary Screw Compressors
  • Hydraulic Pumps and Motors

Key Performance Features

01. Ultra-Low Frictional Resistance

The open configuration eliminates the drag associated with rubber seals or metal shields. This results in exceptionally low starting torque and allows the bearing to operate at much higher limiting speeds, making it perfect for energy-efficient, high-velocity machinery.

02. Premium GCr15 Chrome Steel Quality

Manufactured from vacuum-degassed GCr15 Chrome Steel (SAE 52100), the 6015 Open is heat-treated for optimized hardness and fatigue life. The high-precision raceways are ground to fine tolerances to ensure minimal vibration and quiet operation even under heavy radial loads.

03. Superior Heat Dissipation

The lack of closures ensures that heat generated during rotation is quickly carried away by the surrounding oil or air. This prevents thermal expansion issues and extends the operational life of the internal components and the lubricant itself.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series 6000 Series (Extra Light Series)
Basic Designation 6015
Suffix None (Open Type)
Bore Diameter (d) 75 mm
Outer Diameter (D) 115 mm
Width (B) 20 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class ABEC-1 (P6 and P5 available upon request)
Cage Material Riveted Steel Cage
Dynamic Load Rating (Cʳ) 41.6 kN
Static Load Rating (C₀ʳ) 33.5 kN
Limiting Speed (Grease) 5,600 r/min
Limiting Speed (Oil) 6,700 r/min
Weight (approx.) 0.64 kg

Interchange Part Numbers

Fully compatible with these leading manufacturer designations:

  • SKF: 6015
  • NSK: 6015
  • FAG: 6015
  • NTN: 6015
  • KOYO: 6015
  • Timken: 6015

Design & Configuration

The Welink 6015 Open bearing is supplied with a light coating of anti-rust oil and requires lubrication upon installation. This configuration is intended for internal assemblies where the bearing is enclosed in a clean, lubricated environment. If your project involves exposure to dust, moisture, or requires pre-filled grease, please consider our 6015-ZZ (Shielded) or 6015-2RS (Sealed) models.

"Integrate the 6015 Open bearing into your high-velocity assemblies for industry-leading thermal stability, low-friction efficiency, and precision reliability."

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