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67 Series
Home Deep Groove Ball Bearings 67 Series

6707-2RS Sealed Thin Section Deep Groove Ball Bearing for Harsh Environment Robotics | 35×44×5 mm

6707-2RS Sealed Thin Section Deep Groove Ball Bearing for Harsh Environment Robotics | 35×44×5 mm

The 6707-2RS is a premium ultra-thin single-row deep groove ball bearing engineered to deliver reliable performance in environments where moisture, dust, and contamination are prevalent. Featuring double contact rubber seals (2RS) made from durable NBR (Nitrile Butadiene Rubber), this model provides absolute isolation for the internal rolling elements and locks in the factory-filled grease for the lifespan of the unit. With its 35mm bore, 44mm outer diameter, and highly compact 5mm width, it is the definitive solution for outdoor automation, portable medical devices, and precision instruments that require uncompromising protection within strict spatial limitations.

6707-2RS Deep Groove Ball Bearing 35x44x5 mm | Thin Section Metric Series | Double Contact Seals

Designed to strict ISO tolerances, this specialized bearing combines classic deep groove geometry with advanced sealing technology. Built to handle moderate radial forces and light axial loads in both directions, the 6707-2RS excels in applications where standard shielded bearings would fail due to environmental exposure. Its exceptionally slim profile empowers designers to reduce the overall weight and footprint of automated machinery while ensuring zero-maintenance longevity.

6707-2RS Sealed Thin Section Deep Groove Ball Bearing for Harsh Environment Robotics | 35×44×5 mm

Comprehensive Applications

Engineered for reliable integration into specialized equipment and space-constrained mechanisms:

Medical & Laboratory Systems
  • Clinical centrifuge rotor assemblies
  • Automated fluid pumping and metering devices
  • Cleanroom conveyor and handling components
  • Mobile scanning and diagnostic equipment mounts
Harsh Environment Robotics
  • All-terrain automated guided vehicle (AGV) wheels
  • Submersible and weather-exposed robotic joints
  • Agricultural monitoring drone gimbals
  • Dust-exposed linear actuators and sliding mechanisms
Consumer Electronics & E-Mobility
  • High-end electric bicycle (e-bike) hub motors
  • Compact electric scooter steering columns
  • Advanced battery-powered workshop tools
  • Heavy-duty washing mechanism support bearings
Marine & Automotive Auxiliaries
  • Marine dashboard instrument clusters
  • Compact ATV transmission auxiliaries
  • Specialized automotive wiper motor assemblies
  • Light-duty winch and hoisting mechanisms

Key Performance Features

01. Ultimate Environmental Protection

Unlike shielded variants, the 6707-2RS is equipped with twin synthetic rubber seals that make physical contact with the inner ring. This design creates an impermeable barrier against severe contaminants like fine grit, soil, and direct splashing water. The factory-applied premium grease is permanently secured inside the raceway, completely eliminating the need for periodic relubrication and drastically reducing maintenance downtime for end-users.

02. Ultra-Compact Geometric Profile

Adhering to the specialized dimensions of the 6700 thin-section series, this bearing features a minimal cross-sectional area. The 35x44x5 mm footprint provides OEM engineers with the flexibility to design sleeker, lighter, and more efficient housings. This geometric advantage is crucial for modern aerospace, robotics, and portable technology where every gram and millimeter is meticulously calculated.

03. Resilient Structural Integrity

Forged from high-purity, high-carbon chromium steel (GCr15/SAE 52100), the inner and outer rings offer exceptional wear resistance and fatigue strength. The meticulously polished deep raceways, combined with a precision-stamped steel cage, ensure the rolling elements maintain optimal alignment. This results in stable, vibration-free rotation even when subjected to fluctuating operational demands.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series 6700 Series (Ultra-Thin Section)
Basic Designation 6707
Suffix 2RS (Double Contact Rubber Seals)
Bore Diameter (d) 35 mm
Outer Diameter (D) 44 mm
Width (B) 5 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class Standard / P5 Grade Available
Cage Material Pressed Steel
Dynamic Load Rating (Cʳ) 1.86 kN
Static Load Rating (C₀ʳ) 1.61 kN
Limiting Speed (Grease) 11,000 - 13,000 r/min
Limiting Speed (Oil) --
Weight (approx.) 0.015 kg

Interchange Part Numbers

Direct drop-in replacement for major industry equivalents:

  • SKF: 61707-2RS1
  • NSK: 6707DDU
  • FAG6707-2RSR
  • NTN: 6707LLU
  • KOYO: 6707-2RS
  • NMB: 6707-2RS

Design & Configuration

The standard configuration of the 6707-2RS utilizes NBR (Nitrile) rubber seals, which operate efficiently in temperatures ranging from -30°C to +110°C (-22°F to +230°F). For extreme temperature fluctuations or highly corrosive chemical environments, this bearing can be custom-ordered with Viton (FKM) seals or manufactured entirely from AISI 440C stainless steel. Internal clearance is typically set to standard (CN), but C3 clearance can be specified for applications involving thermal expansion.

"When compact design meets rugged environmental demands, the 6707-2RS delivers the perfect synthesis of space-saving geometry and impenetrable sealing technology."

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