Harmonic Drive Bearings

CSF Series for Harmonic Reducers

Meets Your Design Requirements

Bearing rings: Carburized steel G20CrNi2MoA (surface hardness HRC 60-62)

Rolling elements: Ceramic ZrO₂ (insulating and antimagnetic) or bearing steel GCr15

 Cages: PEEK composite material (high temperature resistance up to 120℃)

Wide Range of Sizes & Precision Grades   

Inner diameter range: 15mm–200mm   

Outer diameter range: 24mm–220mm   

Cross-section height: 3mm–5mm  

Precision grades:   

P4 (standard grade): Runout ≤ 0.0015mm

SP4 (ultra-precision grade): Runout ≤ 0.001mm   

Delivery Time   

Standard models: Shipped within 5-10 days  

Customized models: 3-5 weeks

Techspecs

CSF Harmonic Reducer Bearing
Bearing typeDdCHBdmdmdndndldlweight
CSF(G)-1455111616.513.5498-φ3.5236-M4176-M40.35
CSF(G)-1762101616.513.55610-φ3.5276-M5196-M50.4
CSF(G)-2070141616.513.56412-φ3.5328-M6248-M50.5
CSF(G)-2585201818.516.57916-φ3.5428-M8308-M60.72
CSF(G)-321122621.522.51910416-φ4.5558-M10408-M81.74
CSF(G)-4012624/3222.52421.511720-φ5688-M10508-M102.32
CSF(G)-5015732/4030312814716-φ5.5848-M14608-M144.64
CSF(G)-6521044/5237393519820-φ6.51108-M16808-M169.85

Description

Design principles: 90° orthogonal rollers + integral quenched raceway, with rigidity 5 times higher than that of deep groove ball bearings Three-point supported cage design, with anti-centrifugal deformation capability up to 15,000rpm Performance characteristics: Zero starting torque: preload adjustable within ±2N·m, eliminating backlash error Resistance to fretting wear: surface DLC coating (2μm thick), reducing wear rate by 90% Low temperature rise design: logarithmic curve modification of rollers, with friction torque <0.05N·m Customization options: Vacuum coating lubrication (MoS₂), magnetic encoder integration slot, titanium alloy lightweight structure
CSF Series for Harmonic Reducers

Features

Space-saving

50% thinner than traditional bearings, freeing up wiring space inside joints

Doubled service life

Precision attenuation <5% after 2 million start-stop tests

Maintenance-free operation

Solid lubricant service life ≥20,000 hours

Global compatibility

Compatible with mainstream harmonic reducers such as Harmonic Drive, Shimpo, and Lvde

Working Principle

CSF Series for Harmonic Reducers
Load transmission: Radial/axial loads → evenly distributed through the "X-shaped" contact lines of orthogonal rollers Overturning moments → rigidly counteracted by diagonal roller sets Thermal management: Crown design of rollers (crowning 0.5-1μm) to eliminate edge stress Graphene-modified grease (applicable for -40℃~150℃) Dynamic response: Stiffness matrix: 300N/μm in axial direction, 500N/μm in radial direction Resonant frequency: >3kHz (avoiding the servo frequency band of robots)

Application & Case

Industrial robots: Collaborative robot joints (≤10kg load), SCARA robotic arm rotation units

Precision transmission: Surgical robot wrist mechanisms, satellite antenna steering mechanisms

Semiconductor equipment: Wafer handling robot θ-axis, lithography machine focus and leveling modules

New energy equipment: Fuel cell stacking robotic arms, photovoltaic panel stringer turntables

FAQ

A laser alignment installation fixture (optional) is provided, with deformation controlled to ≤5μm.
All series can be optionally equipped with non-leaching grease (meeting NAS 1638 Class 5 standard).
It is recommended for scenarios with strong magnetic fields and insulation requirements, such as MRI equipment and semiconductor manufacturing.
Four-step delivery: demand diagnosis → 3D simulation → prototype trial production → 200-hour durability test.

Customize large scale machinery parts with affordable cost

NewBee Machinery provides high quality shaft, bearing, gears, CNC machines and other customized mining machinery.

20 Year Experience

NewBee Machinery has 20 years’ experience in customize machinery parts.

Professional R&D Team

Professional and effective research and design team

Advanced Processing Equipment

We have advanced large CNC centner and processing equipment.

Competitive Price

NewBee Machinery provides cost effective products for global customers.

Send an Inquiry

If you are looking for customized machinery parts, precision bearings or CNC Machinery, feel free to contact us and our team will reply within 48 hours.

Do You Have Any Questions!

Luoyang City, Henan, China

RELATED PRODUCTS

WhatsApp sales@newbeetrans.com +8615090185276