GQZ FF-3525 Single Row Flat Cage Linear Needle Roller Assembly 3.5×25×75mm For Planar Linear Sliding Guide
FF-3525 belongs to standard FF series flat linear needle roller assembly. It is composed of cylindrical needle rollers installed inside a flat nylon retainer, single row arrangement.
This component is installed between two flat raceway surfaces to achieve reciproing linear sliding movement. It only bears vertical radial load and cannot be used for rotary motion. The retainer evenly separates rollers to avoid collision friction and maintain stable sliding performance.
FF stands for single-row structure; FFZW represents double-row type. Widely used for precision moulds, automation linear guide structures, testing equipment and low-speed flat reciproing machinery.
Formal quotation will be sent within 24 hours upon your inquiry.
- Model
- FF-3525
- Overall length L
- 75 mm
- Assembly width b
- 25 mm
- Roller diameter Dw
- 3.5 mm
- Effective roller length Lw
- 17.8 mm
- Roller quantity
- 10 pcs
- Net weight
- approx 0.0166 kg
- Structure
- Single row flat needle roller with nylon cage
- Roller material
- GCr15 bearing steel
- Cage material
- Reinforced nylon
- Basic dynamic load Cr
- 64700 N
- Basic static load C0r
- 177300 N
Complete dimension drawings and load data available on request.
- Flat strip compact structure, saves installation space for planar sliding mechanisms
- Excellent load capacity under low-speed reciproing linear motion
- Nylon retainer separates each roller, reduces friction and prevents roller disorder
- Standard industry dimension, fully interchangeable with mainstream brand FF series
- Both ends with connecting notch, multiple assemblies can be spliced to extend sliding stroke
- Customizable: stainless steel roller version, steel cage, OEM laser marking, P6 precision grade
- Precision mould planar sliding and mold guiding structures
- Automation equipment reciproing linear sliding guide assemblies
- Precision testing instruments and optical machinery
- Light-duty machine tool flat guide rail components
- Low-speed heavy-load reciproing flat sliding mechanisms
- 25 years professional bearing manufacturer, products exported globally.
- Strict dimensional sorting for needle rollers to guarantee sliding smoothness.
- Stable nylon cage forming process, not easy to deform under load.
- 24-hour technical support for length combination and model selection.
- Ample stock for machinery distributors.
- Precise dimensions and stable service performance.
- GCr15 roller quenching & tempering hardness inspection
- Needle roller dimensional tolerance and surface roughness testing
- Cage flatness and assembly clearance inspection
- Whole set sliding smoothness test
If you need FF-3525 flat needle roller assemblies:
Send inquiry to obtain below supports:
- Quick quotation within 24 hours
- Double row FFZW series alternative consultation
- Stainless steel roller version solution
- Competitive factory direct price
Contact our sales team for full datasheets and formal offer.
- Q1: Model difference
- FF = single row flat needle roller strip; FFZW = double row flat needle roller assembly.
- Q2: Main dimensions of FF-3525?
- Roller diameter 3.5mm, width 25mm, overall length 75mm.
- Q3: Important usage tip
- Only applicable for linear reciproing sliding, cannot be used for rotating bearing positions.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.