Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Submit
60 Series
Home Deep Groove Ball Bearings 60 Series

6021 Open Deep Groove Ball Bearing | High-Velocity Radial Performance | 105×160×26 mm

6021 Open Deep Groove Ball Bearing | High-Velocity Radial Performance | 105×160×26 mm

The 6021 is a high-precision, unshielded radial ball bearing designed for seamless integration into sophisticated mechanical systems. Part of the 6000 "Extra Light" series, it provides a large 105 mm bore within a space-efficient 160 mm outer diameter, making it the perfect solution for heavy-duty shafts requiring high rotational accuracy. This open-type configuration is specifically intended for environments where external oil-mist or oil-bath lubrication is continuously supplied, ensuring maximum service life in high-speed industrial gearboxes.

6021 Deep Groove Ball Bearing 105x160x26 mm | Unshielded Design | Enhanced Lubricant Flow

Engineered without the drag of internal seals, the 6021 Open bearing offers the lowest rotational resistance in its class. This open geometry allows for unrestricted lubricant circulation across the precision-honed raceways, facilitating rapid cooling during high-load operations. It is a critical component for internal drive trains and motor housings where the bearing is shielded by a secondary enclosure, allowing for frictionless power transmission.

 

6021 Open Deep Groove Ball Bearing | High-Velocity Radial Performance | 105×160×26 mm

Comprehensive Applications

The 6021 Open is optimized for large-scale industrial machinery and high-torque environments:

Heavy Industrial Transmissions
  • Industrial Reduction Gearsets
  • Marine Propulsion Shafts
  • Planetary Power Drives
  • Commercial Vehicle Transmissions
High-Power Electric Motors
  • Large AC/DC Industrial Motors
  • High-Speed Turbine Generators
  • Vertical Pump Motors
  • Traction Motor Assemblies
Fluid Dynamics & Processing
  • High-Volume Centrifugal Pumps
  • Rotary Screw Air Compressors
  • Hydraulic Vane Pumps
  • Industrial Fluid Agitators
Precision Manufacturing
  • Paper Mill Calender Rollers
  • Textile Machinery Main Drives
  • High-Precision Machine Tool Spindles
  • Automated Material Handling Systems

Key Performance Features

01. Zero-Contact Rotational Efficiency

By eliminating the friction associated with contact seals, the 6021 Open reaches significantly higher limiting speeds. This unshielded design minimizes heat generation, making it the ideal choice for energy-sensitive applications where high RPMs are the standard.

02. Advanced Thermal Management

The open internal structure allows the bearing to "breathe," utilizing the surrounding oil or air to dissipate heat instantly. This prevents the thermal expansion issues often found in sealed units, ensuring dimensional stability in fluctuating temperature environments.

03. High-Purity GCr15 Chrome Steel Build

Manufactured using vacuum-degassed GCr15 Chrome Steel (SAE 52100), our bearings undergo rigorous heat treatment for stabilized hardness. The deep-groove raceways are ground to ABEC tolerances to ensure minimal vibration and long-term fatigue resistance under radial and axial loads.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series 6000 Series (Extra Light Series)
Basic Designation 6021
Suffix None (Open Type)
Bore Diameter (d) 105 mm
Outer Diameter (D) 160 mm
Width (B) 26 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class ABEC-1 (Standard) / P6 or P5 (Available)
Cage Material Pressed Steel Cage
Dynamic Load Rating (Cʳ) 72.8 kN
Static Load Rating (C₀ʳ) 65.5 kN
Limiting Speed (Grease) 4,300 r/min
Limiting Speed (Oil) 5,000 r/min
Weight (approx.) 1.60 kg

Interchange Part Numbers

Directly interchangeable with the following global brands:

  • SKF: 6021
  • NSK: 6021
  • FAG: 6021
  • NTN: 6021
  • KOYO: 6021
  • Timken: 6021

Design & Configuration

The Welink 6021 Open bearing arrives with a protective oil coating and is ready for immediate installation into lubricated systems. It is designed for "clean-room" or internal gearbox environments. For applications exposed to external debris, moisture, or dust, we recommend our 6021-ZZ (Steel Shielded) or 6021-2RS (Rubber Sealed) models.

"Enhance your large-bore machinery with the 6021 Open bearing—delivering ultra-low friction, high thermal stability, and world-class industrial reliability."

Related Products

High Load Capacity 41.6 kN 6015-2RS Bearing - GCr15 Chrome Steel P5 Precision Grade for Conveyor Systems and Motorcycle Hubs
6015-2RS Deep Groove Ball Bearing for Industrial Motors & Machinery | 75×115×20 mm

The 6015-2RS is a robust, Light Series deep groove ball bearing engineered for environments that demand high load capacities and strict contamination control. Featuring double rubber contact seals (2RS), this bearing effectively blocks moisture, dust, and heavy particulates from entering the raceway. With a 75 mm bore, 115 mm outer diameter, and a 20 mm width, this model is a standard requirement for heavy-duty electric motors, pump shafts, and industrial drives. Manufactured with the technical rigor developed over Welink Bearing’s 15 years of industry experience, the 6015-2RS ensures long-term operational stability and reduced maintenance downtime for engineers and technicians.

Details
Reliable 5600 RPM 6015 ZZ Ball Bearing - GCr15 Chrome Steel Standard Precision for Gearboxes and Industrial Motors
6015 ZZ Medium-Duty Deep Groove Ball Bearing | 75×115×20 mm | Double Steel Shielded

The 6015-ZZ is a robust industrial-grade Deep Groove Ball Bearing engineered to deliver consistent performance in medium-load mechanical systems. Featuring a pair of non-contact steel shields (ZZ) on both sides, this bearing effectively blocks dust, metal shavings, and airborne contaminants while preserving factory grease lubrication. With a 75 mm inner bore, 115 mm outer diameter, and a 20 mm cross-sectional width, the 6015-ZZ fits seamlessly into standard industrial housings where dependable radial support, moderate axial capacity, and long service intervals are required.

Details
80x125x22mm 6016-2RS Deep Groove Bearing with contact seals for dust and water protection in industrial washdown applications
6016-2RS Sealed Deep Groove Ball Bearing | 80×125×22 mm | Double Rubber Contact Seals

The 6016-2RS is a heavy-duty Deep Groove Ball Bearing designed for challenging operating environments where superior contamination resistance is critical. Equipped with dual rubber contact seals (2RS) on both sides, this bearing offers exceptional protection against moisture, fine dust, and liquid splash, making it far superior to shielded variants in wet or dirty conditions. With an 80 mm bore, 125 mm outer diameter, and a robust 22 mm width, the 6016-2RS is engineered to handle substantial radial loads while maintaining stability in demanding industrial settings.

Details
Standard 6016 ZZ Shielded Bearing compatible with SKF 6016-ZZ, NSK 6016ZZ, and NTN 6016ZZ for Electric Motors and Gear Reducers High Speed 5600 RPM 6016-ZZ Ball Bearing - GCr15 Chrome Steel Standard Precision for CNC Spindles and Automation Systems
6016 ZZ Low-Friction Deep Groove Ball Bearing | 80×125×22 mm | Double Steel Shields

The 6016-ZZ is a precision-engineered Deep Groove Ball Bearing optimized for applications demanding minimal rotational resistance alongside reliable contamination defense. Featuring dual non-contact pressed steel shields (ZZ), this bearing effectively blocks dust, dry particulates, and airborne debris while maintaining exceptionally low friction torque. With an 80 mm inner diameter, 125 mm outer diameter, and 22 mm section width, the 6016-ZZ delivers robust radial load capacity in a standardized ISO 60 Series footprint, making it ideal for high-speed industrial drives where efficiency and heat management are priorities.

Details
6017-2RS Deep Groove Ball Bearing showing Dual Rubber Contact Seals for Moisture and Dust Protection in Harsh Environments
6017-2RS Deep Groove Ball Bearing Double Sealed for Industrial Machinery | 85×130×22 Mm

The 6017-2RS is a robust Double Rubber-Sealed Deep Groove Ball Bearing designed for medium to heavy-duty industrial applications requiring superior contamination protection. Fitted with two high-quality rubber contact seals (2RS) on both sides, it provides excellent defense against dust, moisture, and debris while retaining lubrication for extended service life. With an 85 mm bore, 130 mm outer diameter, and 22 mm width, this bearing delivers reliable performance in electric motors, gearboxes, and industrial equipment where operational dependability and environmental sealing are critical.

Details
Industrial Grade 6017 ZZ Ball Bearing showing Metal Shield Configuration for Low Friction Torque and Maintenance-Free Operation in Manufacturing Machinery
6017-ZZ Metal Shielded Deep Groove Ball Bearing for Agricultural & Construction Equipment | 85×130×22 Mm

The 6017-ZZ is a Double Metal-Shielded Deep Groove Ball Bearing designed for medium to heavy-duty industrial applications requiring reliable performance with minimal maintenance. Fitted with two pressed steel shields (ZZ) on both sides, it effectively retains lubrication while permitting higher operational speeds compared to contact-sealed variants. With an 85 mm bore and standard 22 mm width, this bearing delivers robust performance for electric motors, gearboxes, and industrial equipment where contamination resistance and speed capability are critical.

Details
90x140x24mm 6018 Open Bearing - GCr15 Chrome Steel with 58.5kN Load Capacity for Power Transmission Systems and Pump Applications
6018 Open Deep Groove Ball Bearing for Custom Lubrication Systems | 90×140×24 Mm

The 6018 is an Open-Type Deep Groove Ball Bearing engineered for applications requiring maximum flexibility in lubrication and sealing arrangements. Without integrated seals or shields, this bearing design allows for customized grease selection, relubrication intervals, and external sealing solutions tailored to specific operating conditions. Featuring a 90 mm bore and 24 mm width, the 6018 open configuration is ideal for large electric motors, industrial gearboxes, and heavy machinery where maintenance accessibility and optimized lubrication management are priorities.

Details
Sealed 6018-2RS Replacement Bearing compatible with SKF 6018-2RS1, NSK 6018DDU, NTN 6018LLU for Outdoor Machinery and Harsh Environment Applications
6018-2RS Sealed Deep Groove Ball Bearing for Harsh Environment Protection | 90×140×24 Mm

The 6018-2RS is a Double Rubber-Sealed Deep Groove Ball Bearing specifically engineered for demanding operating conditions where superior contamination exclusion and moisture resistance are essential. Equipped with two NBR rubber contact seals (2RS) on both sides, this bearing provides exceptional protection against dust, water spray, and fine particulate matter while retaining high-quality grease lubrication throughout extended service intervals. With a 90 mm bore diameter and 24 mm width, the 6018-2RS delivers reliable performance for agricultural machinery, outdoor equipment, and industrial applications exposed to challenging environmental conditions.

Details

Leave A Message

Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Submit

Home

Products

whatsApp

contact