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62 Series
Home Deep Groove Ball Bearings 62 Series

6210-2RS Sealed Deep Groove Ball Bearing | Dust & Moisture Resistant Bearing | 50×90×20 mm

6210-2RS Sealed Deep Groove Ball Bearing | Dust & Moisture Resistant Bearing | 50×90×20 mm

The 6210-2RS is a heavy-duty, medium-series ball bearing specifically engineered for mechanical systems operating in harsh or contaminated environments. Equipped with dual-lip synthetic rubber seals (2RS) that make direct contact with the inner ring, this bearing provides an impermeable barrier against water ingress, fine abrasive dust, and chemical fluid splash. With an industry-standard 50mm bore, a 90mm outer diameter, and a 20mm width, it is the ultimate rotational solution for agricultural machinery, outdoor conveyor networks, and automotive drivetrains.

6210-2RS Deep Groove Ball Bearing 50x90x20 mm | Medium Duty 62 Series | Dual Contact Rubber Seals

Built to deliver uncompromising reliability where standard shielded bearings would fail, the 6210-2RS features high-carbon GCr15 chrome steel construction and precision-ground raceways. The tight tolerance of the Nitrile Butadiene Rubber (NBR) seals ensures that the premium factory-filled grease remains securely locked inside the bearing cavity, creating a true "fit-and-forget" maintenance-free component. While the contact seals introduce a slight amount of rotational friction compared to open types, the resulting environmental resilience makes this bearing essential for equipment exposed to mud, rain, and heavy industrial debris.

6210-2RS Sealed Deep Groove Ball Bearing | Dust & Moisture Resistant Bearing | 50×90×20 mm

Comprehensive Applications

The 6210-2RS provides critical operational stability for industries that cannot compromise on contamination protection:

Agricultural & Farming Machinery
  • Tractor wheel hubs and transmission shafts
  • Combine harvester external drive pulleys
  • Heavy-duty tilling and seeding equipment
Material Handling & Mining
  • Exposed outdoor conveyor belt idlers
  • Rock crushing and screening plant drives
  • Bulk material sorting mechanisms
Automotive & Commercial Vehicles
  • Alternator and starter motor supports
  • Light truck and trailer axle hubs
  • Off-road vehicle suspension pivots
Food Processing & Wash-Down Facilities
  • Automated packaging lines subjected to cleaning
  • Industrial commercial washing equipment
  • Beverage bottling plant rotary guides

Key Performance Features

01. Maximum Ingress Protection

The standout feature of the 6210-2RS is its advanced sealing architecture. The dual contact seals prevent the catastrophic internal wear caused by external grit and moisture. This drastically reduces the risk of sudden mechanical failure in outdoor or heavy-washdown industrial settings, minimizing costly machine downtime.

02. Lifetime Maintenance-Free Operation

Because the 2RS configuration effectively eliminates grease leakage, there is no need for external lubrication systems or periodic manual re-greasing. The bearing is pre-packed with a precise fill of high-performance lithium-based grease, calculated to last the entire lifecycle of the component.

03. Robust Structural Capacity

As part of the 62 medium-duty series, this bearing handles significantly higher radial loads and shock impacts than the thinner 60 series. The combination of larger rolling elements and superior sealing makes it a highly versatile powerhouse for demanding torque applications.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series 62 Series (Medium Duty)
Basic Designation 6210
Suffix 2RS (Double Contact Rubber Seals)
Bore Diameter (d) 50 mm
Outer Diameter (D) 90 mm
Width (B) 20 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class Standard (P0) / P6 or P5 Available Upon Request
Seal Material Nitrile Butadiene Rubber (NBR)
Dynamic Load Rating (Cʳ) 35.1 kN
Static Load Rating (C₀ʳ) 23.2 kN
Limiting Speed (Grease) 5,000 r/min
Limiting Speed (Oil) --
Weight (approx.) 0.46 kg

Interchange Part Numbers

Directly compatible with industry-standard 50mm bore sealed bearings:

  • SKF: 6210-2RS1
  • NSK: 6210DDU
  • FAG6210-2RSR
  • NTN: 6210LLU
  • KOYO: 6210-2RS
  • Nachi: 6210-2RS

Design & Configuration

The 6210-2RS is designed for immediate installation in demanding environments. Standard NBR seals are highly effective in temperatures ranging from -30°C to +110°C. If your application involves extreme heat or harsh chemical exposure, we can supply this model with high-temperature Viton (FKM) seals and specialized thermal grease upon request. For enclosed, clean-room applications requiring higher RPMs, please refer to our 6210-ZZ model.

"Engineered to lock out the elements and lock in performance, the 6210-2RS guarantees reliable rotation in the most unforgiving industrial environments."

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