
Wholesale 6×21.7×8.5mm 696ZZ U Groove Nylon PA6 Coated Pulley Bearings
| Item No : | 696ZZU / 696ZZ U-Groove Pulley |
| Size (d*D*B) : | 6×21.7×8.5mm |
| Material : | Chrome Steel +Nylon PA6 |
| Lead Time : | 10-15 days |
| Weight : | 0.0051KG |
| MOQ : | 2000 pcs |
| Service : | Support Sample Testing |
⚙️Product Description:
Sourcing highly reliable, low-noise linear guide rollers for tracks or sliding systems? Our RMO Brand 696ZZ U-Groove Nylon PA6 Pulley Wheel (6×21.7×8.5mm) is an exceptionally versatile hardware component. It features a premium miniature deep groove ball bearing seamlessly overmolded with high-grade, wear-resistant engineering plastic. Designed for smooth rolling and whisper-quiet translation, this roller can be fully customized with diverse bearing steels, outer performance plastics, and groove styles to match your exact mechanism. As a flexible B2B trade supplier, we offer cost-effective RMO factory-direct wholesale lots or source global tier-1 legacy brands to optimize your supply chain.

⚙️Product Features:
- Flexible Multi-Material Configurations: The core embedded bearing is selectively available in Chrome Steel (GCr15) for heavy loading, Carbon Steel for maximum cost savings, or Stainless Steel for ultimate corrosion resistance.
- Versatile Outer Coating Plastics: Injection molded with premium Nylon PA6, we alternatively provide PA66, POM (Polyoxymethylene), and PU (Polyurethane) to fit specific mechanical requirements for wear resistance, shock absorption, or mechanical dampening.
- Adaptable Multi-Groove Profiling: While configured as a standard U-Groove, our engineering lines support rapid custom tooling for V, R, H, Y, or custom flat tracking profiles to match any rail geometry.
- Super-Quiet & Wear-Resistant Rolling: The premium plastic jacket drastically dampens metal-to-metal impact, delivering a low-friction coefficient, high abrasion resistance, and ultra-quiet 360-degree operation.
- B2B Trade & Sourcing Elasticity: Expand your market margins with our competitive factory-direct RMO product lines, or request authentic top-tier international brand integration for high-end procurement contracts.
⚙️Product Application:
Precision-engineered to deliver smooth guidance and long service life in linear movement setups, the 696ZZ pulley is widely utilized in:
- Sliding doors, window roller systems, wardrobe cabinet rollers, and shower room door tracks.
- Automated conveyor lines, factory material handling tracks, and packaging machinery guide rollers.
- Precision 3D printers, DIY small CNC routers, linear actuators, and laser engraving components.
- Gym equipment cables, fitness wire rope tracking, and light-duty overhead rigging pulleys.
- Global hardware distributors, B2B sliding track wholesalers, and mechanical equipment assembly OEMs.
⚙️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. |
![]() | ![]() | ![]() | ![]() | ![]() |
⚙️Obtain Certificate:
About Rimao
⚙️Technical Parameters:
| Model No. | 696ZZU / 696ZZ U-Groove Pulley |
| Inner Bearing Model | 696ZZ (Metal Shielded for Dust Protection) |
| Size | 6×21.7×8.5mm |
| Groove Profile | |
| Bearing Material | |
| Outer Material | Nylon PA6 (Custom PA66, POM, PU Available) |
| Key Advantage | Low Noise, High Wear Resistance, Multipurpose Customization |
| Package | Woven Bags/Cartons |
| Mold Status | Existing Mold Available |
| Brand | RMO/Neutral/OEM/Other Brands |
| Lead Time | |
| Shipping Port | Guangzhou, Ningbo, Shanghai |
| Shipping Method | |
| Payment | 100% T/T, or 30% T/T In Advance, 70% T/T After Finished Production |
leave a message
If you are interested in our products and want to know more details, please leave a message here, we will reply you as soon as we can.




















