High-Load 3mm Thickness FF3020 Flat Needle Roller Assemblies for Precision Sliding Stages
| Item No : | FF3020 Flat Needle Roller Cage Assembly |
| Size (d*D*B) : | 3x20x60mm |
| Material : | Bearing Steel GCr15 + Nylon PA66 |
| Lead Time : | 3-5 days |
| Weight : | 0.0089KG |
| MOQ : | 100 pcs |
| Service : | Support Sample Testing |
⚙️Product Description:
The FF3020 (3x20x60mm) is a precision ringless flat needle roller cage assembly engineered for high-load linear guidance and reciprocating motion mechanisms. Featuring a compact 3mm thickness profile across a 20x60mm active area, this ringless design comprises high-strength nylon PA66 retainer pockets holding precision-ground GCr15 chrome steel needle rollers. Operating directly against hardened flat guide surfaces without separate inner or outer rings, it minimizes vertical envelope space while maximizing load-bearing line contact density. Supplied under our proprietary RMO brand, we provide flexible global OEM procurement for linear motion systems, machine tool slides, and automated sliding guides.
⚙️Product Features:
- Ringless Direct-Track Design: Operates directly on hardened machine ways or shafts, eliminating ring weight and reducing total height profile to 3mm.
- High-Strength PA66 Retainer Cage: Precision-molded nylon PA66 pocket cage securely guides needle rollers, preventing skewing and reducing friction noise.
- GCr15 Chrome Steel Needle Rollers: High-carbon chromium steel rollers deliver exceptional hardness, wear resistance, and high radial load capacity.
- High Line-Contact Density: Multiple needle rollers distribute heavy loads uniformly over a wide linear footprint, preventing surface indentation.
⚙️Product Application:
Engineered for low-profile reciprocating motion, linear guides, and heavy sliding friction reduction, the FF3020 cage assembly is widely specified in:
- Linear motion guides: precision machine tool slide ways, optical positioning stages, and coordinate measuring machines (CMM).
- Automated handling: semiconductor wafer transfer stages, robotic sliding tracks, and pick-and-place linear axes.
- Medical & office equipment: high-end hospital bed sliding mechanisms, large format printer printhead gantries, and plotter guides.
- Industrial machinery: hydraulic press sliding rams, press brake back-gauges, and textile machine reciprocating elements.
⚙️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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⚙️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:
| Bearing Model | FF3020 Flat Needle Roller Cage Assembly |
| Dimensions | 3x20x60mm (Thickness d x Width D x Length H) |
| Structure Type | Ringless Flat Cage with Needle Rollers |
| Cage Material | Engineering Nylon PA66 Retainer |
| Motion Type | Linear Reciprocating / Flat Track Guidance |
| Target Application | Machine Tool Slides, Linear Guides, Automation |
| 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 |
| Model No. | d | D | H | m |
| FF2010 | 2 mm | 10 mm | 32 mm | 2 g |
| FF2515 | 2.5 mm | 15 mm | 45 mm | 3.8 g |
| FF3020 | 3 mm | 20 mm | 60 mm | 8.9 g |
| FF3525 | 3.5 mm | 25 mm | 75 mm | 17 g |
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