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MF Series
Home Deep Groove Ball Bearings MF Series

MF148-ZZ Flanged Miniature Ball Bearing | Precision Shielded Series | 8×14×4mm

MF148-ZZ Flanged Miniature Ball Bearing | Precision Shielded Series | 8×14×4mm

The MF148-ZZ is a high-performance, metric-dimensioned miniature bearing characterized by its integrated outer ring flange. This structural feature is engineered to simplify housing designs by allowing the bearing to be securely axial-located without the need for complex internal shoulders. Equipped with dual metal shields (ZZ), this model provides a robust defense against dust and debris while retaining high-quality lubrication, making it an essential component for precision-heavy environments where space is at a premium.

MF148-ZZ Deep Groove Ball Bearing 8mm × 14mm × 4mm | Enhanced Stability with Integrated Flange

Designed for high-speed reliability, the MF148-ZZ excels in applications requiring consistent axial positioning and minimal maintenance. The presence of the flange ensures a "stop" mechanism during installation, preventing the bearing from migrating through the housing under vibration or high-frequency movement. Whether utilized in robotic joints or micro-motor assemblies, this bearing delivers a balance of low-torque performance and long-term operational durability.

MF148-ZZ Flanged Miniature Ball Bearing | Precision Shielded Series | 8×14×4mm

Comprehensive Applications

Ideal for mechanical designers and OEM manufacturers focusing on compact, high-precision automation:

Robotics & Automation
  • Small-scale Robotic Articulations
  • Precise Linear Actuators
  • Automated Sorting Mechanisms
  • Micro-Servo Drives
Medical & Laboratory Technology
  • Diagnostic Imaging Equipment
  • Centrifuge Rotor Assemblies
  • Dental Tooling Components
  • Automated Pipetting Systems
RC & Hobbyist Engineering
  • High-Performance RC Car Hubs
  • Brushless Drone Motors
  • Precision Model Aircraft Gimbals
  • Remote Controlled Boat Drive Shafts
Office & Consumer Electronics
  • Premium Laser Printer Rollers
  • High-Speed Cooling Fans
  • Scanning Mechanism Guides
  • Precision 3D Printer Extruders

Key Performance Features

01. Integral Flange for Precise Mounting

The standout feature of the MF148-ZZ is the precision-ground flange on the outer ring. This design streamlines the machining process for your housings, as it eliminates the need for internal snap rings or shoulders. It ensures the bearing stays perfectly seated, even in thin-walled or lightweight mounting brackets.

02. Dual Metal Shields (ZZ) for Longevity

Fitted with two non-contact steel shields, this bearing is factory-pre-lubricated for life. The ZZ configuration prevents the ingress of dry contaminants and retains the internal grease, ensuring the raceways remain smooth and friction-free without the drag associated with rubber seals.

03. High-Grade GCr15 Chrome Steel Construction

Manufactured from premium vacuum-degassed chrome steel, the MF148-ZZ offers superior fatigue life and high-load capacity. Each unit is heat-treated to reach optimal hardness, ensuring the 8mm bore maintains its dimensional integrity under sustained high-speed rotation.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series Metric Miniature Flanged
Basic Designation MF148
Suffix ZZ (Double Metal Shields)
Bore Diameter (d) 8 mm
Outer Diameter (D) 14 mm
Width (B) 4 mm
Flange OD (D1) 15.6 mm
Flange Width (B1) 0.8 mm
Material GCr15 Chrome Steel (SAE 52100)
Dynamic Load Rating (Cʳ) 815 N
Static Load Rating (C₀ʳ) 385 N
Limiting Speed (Grease) 38,000 RPM
Limiting Speed (Oil) 45,000 RPM
Weight (approx.) 2.30 grams

Interchange Part Numbers

Simplify your procurement by cross-referencing these industry-standard part numbers:

  • SKF: F698-2Z
  • NMB: LF-1480ZZ
  • NSK: F698ZZ
  • NTN: FL698ZZ
  • FAG: F698-2Z
  • KOYO: F698ZZ

Design & Configuration

With 15 years of deep expertise in B2B manufacturing and international trade, Welink Bearing provides precision-engineered components tailored for industrial success. The MF148-ZZ reflects our commitment to versatile, high-stability rotational solutions. For OEM partners and large-scale manufacturing facilities, we accommodate custom production requests, including the application of specialized high-temperature greases, specific internal clearance ratings (such as C3 or CM), and alternative stainless steel (AISI 440C) configurations to precisely match your operational parameters.

"Optimize your axial alignment and system reliability with the MF148-ZZ flanged series, engineered for stability and precision."

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Side view of MF148-ZZ Showing 15.6mm Flange Diameter for Secure Mounting in Thin-Walled Housings
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