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Quick Details

  • Structure: Deep Groove
  • Type: Ball
  • Brand Name: FreeRun
  • Bore Size: 2 - 6 mm
  • Outside Diameter: 3 - 7 mm
  • Model Number: R,MR; MF;FR; FFR series
  • Precision Rating: ABEC-1, ABEC-3, ABEC-5
  • Seals Type: ZZ (Metal Shield on two sides);Open
  • Number of Row: Single Row
  • Place of Origin: Fujian, China (Mainland)
  • Cage/Retainer type: Crown,Ribbon
  • Retainer material: Stainless Steel
  • Hardness of balls and rings: 59-65 HRC
  • Lubrication: Grease or Oil
  • bearing material: chrome steel; stainless steel; hybrid ceramic
  • bearing structure: un-flanged or flanged
  • Vibration Level Codes: V4,V3,V2,V1
  • Internation Clearance Codes: C0,C2,C3,C4,C5

Packaging & Delivery

Packaging Details 10 pcs in one plastic tube,10 tubes in one paper box.
Delivery Time 3-7 workdays

FreeRun is a specialized manufacturer of Miniature ball bearings. 


1) Miniature bearings mainly take radial load as well as take moderate axial load;
2) With less coefficient of friction, high limiting speed;
3) A widely used type of bearings in machinery industry.



 FreeRun hot sales bearings for Slot Cars:

      Size         Dimension     Material    Shieled Type Structure
6822x5x1.5mmchrome steel openun-flanged
F682ZZ2x5x2.3mmchrome steel metal shieldflanged
MF52ZZ2x5x2.5mmchrome steel metal shieldflanged
FR144ZZ  1/8"x1/4"x7/64"    chrome steel metal shieldflanged
MR62ZZ2x6x2.5mmchrome steel metal shieldun-flanged
MF62ZZ 2x6x2.5mmchrome steel metal shieldflanged
MF63ZZ 3x6x2.5mmchrome steel metal shieldflanged
R133ZZ3/32"x3/16"x3/32"chrome steel metal shieldun-flanged
  FR133ZZ3/32"x3/16"x3/32"chrome steel metal shieldflanged
 FFR133ZZ2.38x4.9x3.84mmchrome steel metal shielddouble-flanged

The same size can be made of different materials, including:   

Chrome Steel Bearings ; Stainless Steel Bearings; Ceramic Bearings








Transaction History of the Supplier

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Transaction Overview


Transaction Details

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China (Mainland) | Manufacturer, Trading Company
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1 Transactions 4,000+
The supplier’s transactions conducted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $106,000
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