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638 Series
Home Deep Groove Ball Bearings 638 Series

63800-ZZ Ultra-Thin Extended-Width Ball Bearing | 10×19×7 mm for Micro-Motors & Precision Automation

63800-ZZ Ultra-Thin Extended-Width Ball Bearing | 10×19×7 mm for Micro-Motors & Precision Automation

Developed specifically for compact mechanical assemblies requiring enhanced radial stability without a larger housing footprint, the 63800-ZZ is a premium extended-width thin-section deep groove ball bearing. Outfitted with double metal shields (ZZ), it effectively blocks out airborne contaminants while retaining its factory-applied premium lubricant. Because these steel shields never make physical contact with the inner ring, the 63800-ZZ minimizes operating drag and startup torque compared to contact rubber seals, making it an excellent solution for 10mm shaft designs like camera gimbals, high-torque drone motors, and micro-robotic joints.

63800-ZZ Deep Groove Ball Bearing 10×19×7 mm | Extended Thin-Section Design | Double Shielded

Built in strict accordance with precision ISO standards, this bearing utilizes a wider thin-section profile to provide superior radial and axial tracking within tightly constrained spaces. The integrated metallic shields establish a non-contact barrier against larger debris particles, protecting the precision-ground internal raceways. This non-rubbing configuration prevents friction-induced thermal buildup, enabling the 63800-ZZ to sustain exceptionally high velocities over long lifecycles—perfect for low-maintenance automated instrumentation and professional RC models.

63800-ZZ Ultra-Thin Extended-Width Ball Bearing | 10×19×7 mm for Micro-Motors & Precision Automation

Comprehensive Applications

Optimized for high-velocity rotation and highly compact structural layouts:

Micro-Robotics & Automation Systems
  • High-precision rotary encoders and optical feedback sensors
  • Miniature articulating joints and low-profile micro-actuators
  • Automated laboratory fluidic diagnostics and sorting drives
  • Small-scale automated guided vehicles (AGV) and drive wheels
High-Speed Brushless Motors (BLDC)
  • Outrunner rotors and stators in high-efficiency DC motors
  • Precision dental handpieces and surgical power tools
  • High-RPM cooling fans for enterprise servers and telecom racks
  • Miniature aerospace gyroscopes and portable tech hardware
RC Vehicles & Drone Technology
  • High-performance FPV racing drone motor shafts
  • RC helicopter main rotor grips and tail assemblies
  • Multi-axis camera gimbal stabilization mechanisms
  • Compact drivetrains and differentials for micro RC crawlers
Precision Office & Optical Equipment
  • 3D printer stepper motors and high-torque extruder feeds
  • LiDAR scanning modules and laser mirror assemblies
  • High-speed industrial camera autofocus mechanisms
  • Automated ticketing systems and micro-film processing gear

Key Performance Features

01. Extended Wide Thin-Wall Profile

Featuring an optimized 10×19×7 mm layout, this design provides a wider tracking footprint than standard 6800 bearings. This extra width delivers greater radial stiffness and handling capacity for light combined loads without increasing the overall housing diameter.

02. Frictionless Non-Contact Shielding

Dual pressed-steel shields (ZZ) provide robust protection against particulate ingress without inducing mechanical drag. This zero-contact method keeps operational temperatures low and prevents energy loss, maximizing battery runtimes in portable electronic devices.

03. Industrial-Grade Chrome Steel (GCr15)

Forged from ultra-clean, vacuum-degassed GCr15 high-carbon chrome steel, both the rings and balls undergo precise thermal treatments to ensure exceptional Rockwell hardness and wear resistance. Pre-packed with premium grease, these bearings offer silent, smooth operation right out of the box.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series 63800 Series (Extended Thin Section)
Basic Designation 63800
Suffix ZZ (Double Steel Shields)
Bore Diameter (d) 10 mm
Outer Diameter (D) 19 mm
Width (B) 7 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class Standard / P5 Grade Available
Cage Material Reinforced Pressed Steel Cage
Dynamic Load Rating (Cʳ) 2.18 kN
Static Load Rating (C₀ʳ) 1.02 kN
Limiting Speed (Grease) 34,000 r/min
Limiting Speed (Oil) 40,000 r/min
Weight (approx.) 0.007 kg

Interchange Part Numbers

Directly replaces the following equivalent manufacturer parts:

  • NSK: 63800ZZ
  • SKF: 63800-2Z
  • KOYO: 63800ZZ
  • NTN: 63800ZZ
  • Nachi: 63800ZZ
  • FAG: 63800-2Z

Design & Configuration

The standard 63800-ZZ is supplied pre-filled with high-speed, noise-dampening grease formulated for industrial environments. For specialized engineering requirements, Welink Bearing can supply this model with C3 internal clearance to safely manage thermal expansion, or in AISI 440C stainless steel for moisture-heavy applications. For environments exposed to direct liquid spray or heavy dust, please consult our team regarding our contact-sealed 63800-2RS rubber variants.

"The 63800-ZZ delivers an optimized balance of space-saving geometry and increased structural rigidity, driving next-generation innovations in micro-automation and high-speed motion control."

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High Speed 34000 RPM 63800 ZZ Bearing - GCr15 Chrome Steel 10x19x7 mm Extended Width Thin Section for BLDC Motors and Automation
63800-ZZ Ultra-Thin Extended-Width Ball Bearing | 10×19×7 mm for Micro-Motors & Precision Automation

Developed specifically for compact mechanical assemblies requiring enhanced radial stability without a larger housing footprint, the 63800-ZZ is a premium extended-width thin-section deep groove ball bearing. Outfitted with double metal shields (ZZ), it effectively blocks out airborne contaminants while retaining its factory-applied premium lubricant. Because these steel shields never make physical contact with the inner ring, the 63800-ZZ minimizes operating drag and startup torque compared to contact rubber seals, making it an excellent solution for 10mm shaft designs like camera gimbals, high-torque drone motors, and micro-robotic joints.

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The 63801-ZZ is a specialized, narrow-profile single-row deep groove ball bearing engineered for high-velocity mechanisms where physical installation area is strictly limited. Diverging from high-contact rubber variants, this model is outfitted with dual pressed steel non-contact shields (ZZ) that preserve low-torque operation while offering dependable prevention against airborne particulates and debris. Displaying exact metric boundaries—a 12 mm inner diameter, 21 mm outer diameter, and a balanced 7 mm width—the 63801-ZZ delivers efficient, low-friction power transmission for compact dental gear, precision instrumentation, and drone motor assemblies.

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The 63801-2RS is a highly specialized thin-section ball bearing designed for applications where minimizing weight and saving space are critical, without sacrificing durability. What sets this model apart from standard miniature bearings is its unique 7 mm width. This widened internal cavity allows for a significantly larger volume of lubricant compared to standard 5 mm wide equivalents. Fitted with premium double-contact rubber seals (2RS), this bearing effectively traps grease while locking out micro-abrasives and moisture, making it a highly reliable solution for micro-motors, premium cycling components, and delicate automated machinery.

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Built for mechanical systems that require excellent load capacity within restricted dimensions, the 63804-ZZ represents a highly efficient compact deep groove ball bearing. Equipped with twin steel shields (ZZ), this model effectively blocks external debris while trapping the factory-applied lubricant inside. Since these metal shields hover just above the inner ring without making physical contact, the 63804-ZZ minimizes rotational resistance. This makes it an outstanding solution for 20mm shaft applications such as automated factory equipment, electric vehicle motors, and precision gearboxes.

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