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Quick Details

  • Structure: Deep Groove
  • Type: Ball
  • Brand Name: FreeRun or FRC
  • Bore Size: 2 - 15 mm
  • Outside Diameter: 4 - 30 mm
  • Model Number: all small motor bearing sizes
  • Precision Rating: ABEC-1, ABEC-3, ABEC-5, ABEC-7
  • Seals Type: open type, 2RS Rubber seal, ZZ and RZ,
  • Number of Row: Single Row
  • Place of Origin: Fujian, China (Mainland)
  • brushless Motor Ball bearing materials: Carbon, Chrome, Stainless Steel, Silicon Nitride Si3N4
  • Cage/Retainer type: Crown,Ribbon, or without Retainer
  • Retainer material: Steel, Nylon, Polyimide, Phenolic, Peek, US304, SUS316 or Bronze
  • Balls material: Stainless balls, Ceramic Balls
  • Lubrication: Grease or Oil
  • Lubrication brand: Kyodo Yushi Multemp SRL
  • Oil Lubrication: Shell Air Oil#12
  • Vibration Level Codes: V4,V3,V2,V1
  • Radial Play: C0,C2,C3,C4,C5
  • Speed Limited: 10,000----200,000 RPM

Packaging & Delivery

Packaging Details 10 pcs in one plastic tube,10 tubes in one paper box.
Delivery Time it depends on the order quantity


1. Freerun brushless motor ball bearing

Motor Bearing Description                                                                                    


Freerun is a specialized manufacturer of motor bearings,brushless motor bearing,electric motor bearing,electric motor bearings,motor ball bearing,small motor bearings.

Freerun Bearing Company has been an industry leader in motor bearing manufacturing for over 5 years. 

Speical in Rc Brushless Motor. We have developed a full range of brushess motor bearings for all the leading 

Rc brushless Motor manufacturers including Torman, Hacker,Scorpion system and many more. Brushless Motors have revolutionized the UAV & RC racing industries with a cutting edge, high powered alternative to nitro enginesFreerun Bearing Company has put together non standard motor bearing and upgrade replacement RC Brushless.Motor bearings to meet different user needs.





2.Freerun Model brushless Motor bearing

Product Information                                                                                                                                                                        






Unflanged Bearing: 



Flanged Bearing:




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

Stainless Steel Bearings

Chrome Steel Bearings

Carbon Steel Bearings

Ceramic Bearings


3.Freerun Model Brushless Motor Bearing

The Advantage Of Motor Bearing(EMQ Bearing)                                                     


  • EMQ2 (ZV3) Quality:These electric motor ball bearings are rated EMQ2 (ZV3) for very low noise or low vibration applications. Various radial play groups can be supplied but the most commonly stocked are CN (standard) radial play and C3 (loose) radial play. Usually supplied in SAE52100 chrome steel, our electric motor bearings are individually tested before approval. These deep groove radial ball bearings can withstand heavy radial loads and moderate thrust loads in both directions. Many other sizes can be supplied as low noise but these are the most commonly used.
  • Lubrication: For proper lubrication, you should reoil the bearing with our bearing oil or grease every 20-30 runs to get the most life out of your race bearings.
  • Installation: These bearings are made with a very tight tolerance so it is common for the bearing not to slip right on due to the edges on the armature being scarred from a pinion. You may have to lightly sand the armature shaft to get the edges off while adding a drop of oil on it to put the bearing all the way on.
  • Low Friction: Our bearings have a low friction force. Even under the conditions of boundary lubrication, the surfaces are extremely smooth, so its friction force is low and the rotational friction moment is low.
  • Supply quickly from large Stock: Over the years we have developed extensive product knowledge and offer technical help with all apsects of our range. We keep comprehensive stocks across the whole range so offer a same day despatch worldwide on most sizes if required. We receive incoming shipments every week so stocks are always changing. For the most up to date stock situation on any item,Please contact us.


4.Freerun Model brushless Motor bearing



Oils – maintain their consistency well over a wide temperature range and are easy to apply. For very low torque applications, a light instrument oil should be specified. Higher running speeds are possible with oil but the obvious drawback with oil is the fact that it tends not to stay in place.


For anything other than very low speeds, continuous lubrication through oil mist, oil jet or oil bath is normally necessary. An exception to this is the use of a retainer (cage) that can be impregnated with oil such as the phenolic retainer. Perfluorinated oils can offer improved performance at slightly higher speeds as they don't migrate (run out) as easily.
Greases – are simply oils mixed with a thickener to so that they stay inside the bearing. Greases are generally more suitable for heavy loads and have the obvious advantage of giving constant lubrication over a long period without maintenance.







Product  Certification                                                                                                   



Quality Certification

SGS RoHs Test Report

Test Report of Raw Material

Test Report of Raw Material

Test Report of Miniature Bearing











Main Market                                                                                                                                                                                            






Export Amount                                                                                                           




8.Freerun Model brushless Motor bearing


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China (Mainland) | Manufacturer, Trading Company
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Supplier's Trade Assurance Limit: US $106,000
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