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Quick Details

  • Structure: Deep Groove
  • Type: Ball
  • Brand Name: FreeRun or FRC
  • Bore Size: 1 - 15 mm
  • Outside Diameter: 3 - 50 mm
  • Model Number: MR Series,R series,67 series,68 series,69 series MF,F67,F68,F69series.
  • Precision Rating: ABEC-1,ABEC-3,ABEC-5,ABEC-7
  • Seals Type: Open, ZZ (2 Metal Shields),2RS(2 rubber seals), 2TS(2 teflon seals)
  • Number of Row: Single Row
  • Place of Origin: Fujian, China (Mainland)
  • Embroidery machine Material: Stainless Steel AISI440 (9Cr18),Ceramic and steel GCr15
  • Cage/Retainer type: Crown, Ribbon
  • Retainer material: Stainless Steel,Nylon,PTFE,PEEK
  • Balls: Stainless balls,Ceramic Balls
  • Quality-standard of balls: G10 as DIN 5401, ISO 3 290,G5 for ceramic balls
  • Lubracation: Grease, Oil, Dry
  • Grease Lubrication: Kyodo Yushi Multemp SRL (25% fill-grad)
  • Oil Lubrication: Shell Air Oil#12
  • Vibration Level Codes: V4,V3,V2,V1
  • Radial Play: C0,C2,C3,C4,C5

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

U Groove guide bearing  Description                                                                                    

Made in china Embroidery machine  guide roller bearings



* Embroidery machine bearing manufacturer 
* Factory price
* ISO9001:2008 standard 
* LV(RV) SG W V U LFR series
* OEM & sample available



Product Information                                                                                                                                                                        


* LV(RV)  SG  W  V  U   LFR series









3.Freerun Manufacturing Process                                                                                                                       






Package: 10 pcs in a plastic tube,10 tubes in one paper box. 


Industrial-packing:  10 pcs in a soft shrink-wrap weld with printing stick-label as Brand . 


Special Packing: different size with different qty in ziplock bag.



Product  Certification                                                                                                   


Quality Certification

SGS RoHs Test Report

Test Report of Raw Material

Test Report of Raw Material

Test Report of Miniature 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.




Main Market                                                                                                                                                                                            





The Advantage Of Products                                                                                      


  • High Speed: Most of Freerun Miniature bearings can reach a resistance level of 50,000 RPM with grease lubrication.
  • Long Service Life: The service life of Freeru miniature bearings is 4 to 6 times longer than other suppliers in comparable working conditions.
  • Self Lubricating: Even when poorly lubricated or with no lubrication, Freerun bearings will continue to function longer than other bearings under the same level of stress due to their self lubricating properties.
  • 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.






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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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