Home / Products / Bearing / Miniature Ball Bearing / sealed Double Row Miniature ball bearing Electric Motor

sealed Double Row Miniature ball bearing Electric Motor

.Better than 2pcs of single row deep groove ball bearing combined, double row bearing is designed .

.Size: Inner Bore Diameter 4mm min., both with metric and Inch sizes .

.Series NOs.: 50/4-2RS , 50/8ZZ , 4200 , 3201-2RS , 5203-2RS

.Low running noise,high precision class

.Reliable long running life ,

.Material besides chrome steel GCr15/SAE52100/DIN100Cr6,anti-corrosion stainless material SS440/SS304/SS316/Ceramic ZrO2,Si3N4/Plastic Nylon,PA,POM,PEEK are available


.Not only electric motor but also for RC remote control car , fishing reel , bike bicycler motorcycle ,skateboard ,household appliance,instrument device……various of machinery use

facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
sharethis sharing button
  • 50/4-2RS , 50/8-NPPU , 4200-LLU , 3201-2RS , 5203-DDU

  • Neutral, AND brand or any other brands authorized .

.Double row raceway which are better uniform and accurate are in one ring , better than paired single row bearing .

.Well sealing,prevent water vapour, corrosive gases intrude into the bearing and prevent the grease leak out , means maintenance free during its life time, our bearings run with low noise , high precision , high speed because well lubricated by pregreased.

.Support radial load and fairly degree of axial load

.According to the temperature, humidity , cleanliness which the equipments served by the motor will face to , RPM speed , force bring to the bearing , bearing components material,tolerance grade , heat treatment method,internal play,grease,parameters of raceway…will be considered professionally and comprehensively.

.For example , normally chrome steel GCr15/SAE52100/DIN100Cr6 is used for rings , NBR,HNBR/Viton FPM/ACM for seals , steel ribbon/Nylon PA/PTFE/PEEK/Brass for the cage, chrome steel/stainless steel/Ceramic ZrO2 Si3N4 for the balls . Sometimes hybrid is designed if necessary .

.Internal play can be C2,C0,C3…..or special data according to engineering.

.Our bearing normally operating temperature range -30°C to +110°C . With different material/heat treatment/grease…..will be wider range , consult us for more detailed information if you need.

.For special requires , extreme high/low temperature , insulation , anti-corrsion,RPM…… consult to us.

.Each piece product from us is customized based on customer’s demand to the bearing, our action guiding goal is engineering and supply them with top quality&best price.

.We are partnership supplier to ODM/OEM/wholesaler , we are unsung heros, supporting machines running in every corner of the world.

Drop me an opportunity to become a trusted partner to you !





Copyright © 2020 Ningbo AND Machinery CO.,LTD    Support by Leadong.

Please Enter Your Information

  +86-574-8712 1096 / 8714 9648