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

⚙️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 clean | 2. Use with caution | 3. appropriate tool | 4. Hot-loading | 5. 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. |
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⚙️Technical Parameters:
| Item No. | 686 PP |
| Size | 6x13x5mm (Inner d x Outer D x Total Width/Height H) |
| Bearing Type | Plastic Deep Groove Ball Bearing |
| Number of Ball Rows | Single Row |
| Ring Material | Polypropylene PP |
| Ball Material | Soda-Lime Glass or 316 Stainless Steel |
| Cage Material Options | Polypropylene PP Cage |
| Lubrication | Self-Lubricating Dry Operation |
| Precision | P0 / P6 (ABEC-1 / ABEC-3) Optional |
| Brand | RMO (Own Brand) / Neutral / OEM Custom / Other Global Brands |
| Package | Individual plastic bag, plastic tube or original RMO brand box |
| Lead Time | 3-5 days for stock; 7-15 days for bulk orders |
| Shipping | Express (DHL/FedEx/UPS), Air Freight, Sea Freight |
| Payment | 100% TT, or 30% TT In Advance, 70% TT After Finished Production |
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