686 PP Plastic Deep Groove Ball Bearing 6x13x5mm for Chemical Equipment

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Item No :686 PP bearing
Size (d*D*B) :6x13x5mm
Material :Polypropylene PP
Lead Time :3-5 days
Weight :0.0004KG
MOQ :100 Pcs

⚙️Product Description:

The 686 PP plastic deep groove ball bearing features a 6 mm bore diameter, 13 mm outer diameter, and 5 mm width. Manufactured with high-purity Polypropylene (PP) rings, a durable plastic cage, and high-precision glass or 316 stainless steel balls, this lightweight miniature unit offers superior resistance to acid, alkali, and chemical corrosion. It requires no lubrication, operates quietly, and provides excellent electrical isolation. As a professional trade supplier, we maintain direct inventory of our RMO brand while supporting customized material options and global brand sourcing for specialized chemical, medical, and food-grade applications.

Cross section structure diagram of 686 PP plastic bearing showing polypropylene rings and glass balls

⚙️Product Features:

  • Chemical and Acid-Alkali Corrosion Resistance: Polypropylene rings paired with inert glass or 316 stainless balls withstand aggressive acid and alkaline solutions without rusting or degrading.
  • Lightweight and Non-Magnetic Properties: Low density PP plastic construction reduces rotational inertia and eliminates magnetic interference in sensitive electronic devices.
  • Self-Lubricating and Oil-Free Operation: Eliminates the need for grease lubrication, preventing fluid contamination in cleanroom, laboratory, and food processing environments.
  • Superior Electrical Isolation: Polypropylene polymer composition blocks electrical current transmission, preventing galvanic erosion and static build-up.
  • Flexible Dual Sourcing Options: Cost-optimized RMO brand factory supply combined with flexible sourcing for top international brands ensures stable procurement.

⚙️Product Application:

  • Chemical Liquid Handling: Acid and alkali fluid pumps, chemical etching equipment, and electroplating lines.
  • Medical and Laboratory Instruments: Blood analyzers, diagnostic laboratory equipment, and medical liquid dosing devices.
  • Food and Beverage Machinery: Bottling line conveyor guide wheels, food washing systems, and packaging machines.
  • Semiconductor and Wet Process Tools: Cleanroom handling rollers, wafer etching machines, and PCB cleaning machinery.

⚙️Precautions:

1. Keep clean2. Use with caution3. appropriate tool4. Hot-loading5. Be careful of rust
Dust will have a bad effect on the bearing, so keep the surrounding clean.Strong impact during use can easily cause scratches and indentations.Avoid replacing existing tools, and use appropriate tools.Bearings are precision parts, so hot installation is recommended.Sweat on your hands during operation will cause rust, so it is best to wear gloves.

⚙️Obtain Certificate:

About Rimao

Since its establishment in 2011, Rimao Bearing has combined international vision with local wisdom and injected innovative ideas into every bearing and pulley with its profound industry accumulation and unremitting pursuit of technology. We have not only passed CE and ROHS certification, but also set a new benchmark in the industry and led the development trend of the bearing industry.
 
We are not just a ball bearing and roller bearing importer and wholesaler. We provide real solutions to help you achieve the product and design goals set by your customers. With more than 20 years of production and sales experience, tens of thousands of models and specifications, we look forward to cooperating with you!

⚙️Technical Parameters:

Item No.686 PP
Size6x13x5mm (Inner d x Outer D x Total Width/Height H)
Bearing Type
Plastic Deep Groove Ball Bearing
Number of Ball Rows Single Row
Ring MaterialPolypropylene PP
Ball MaterialSoda-Lime Glass or 316 Stainless Steel
Cage Material OptionsPolypropylene PP Cage
Lubrication
Self-Lubricating Dry Operation
PrecisionP0 / P6 (ABEC-1 / ABEC-3) Optional
BrandRMO (Own Brand) / Neutral / OEM Custom / Other Global Brands
PackageIndividual plastic bag, plastic tube or original RMO brand box
Lead Time3-5 days for stock; 7-15 days for bulk orders
ShippingExpress (DHL/FedEx/UPS), Air Freight, Sea Freight
Payment100% TT, or 30% TT In Advance, 70% TT After Finished Production

 

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