Support & Knowledge

Technical resources to help you select, apply, and maintain RFU Motion products.

Technical Articles & Guides

Cross Reference

Cross Reference Guide

Which linear motion designations genuinely carry across brands, which are house codes, and the seven-point check every substitution needs.

Selection Guide
Guides

Linear Guide Interchange Chart

Where the HGH, HGW, EG, RG and MGN footprint families are genuinely shared between makers, and the seven checks before substituting.

Selection Guide
Ball Screws

Ball Screw Interchange Guide

Why SFU, DFU, SFE and SFK have no model-number equivalent — and what to specify instead.

Selection Guide
Bushings

Linear Bushing Interchange Chart

LM, LMF, LMK and LMH are shared codes; SCS, LF, SBR, SHF and SK are house codes. Know which is which.

Selection Guide
Support Units

Support Unit Interchange Chart

BK, BF, EK, EF, FK and FF are shared industry codes — plus the three measurements that still settle it.

Selection Guide
Actuators

Single Axis Robot Interchange Chart

RBLS, RTS, RBLE and RBSE single axis robots: what a replacement requires when no model codes carry across makers.

Selection Guide
Selection Guide

Ball Screw Selection Guide

How to choose the right ball screw for your application — load, speed, accuracy, and life calculation.

Selection Guide
Installation

Linear Guide Installation Best Practices

Proper mounting, alignment, and preload adjustment for maximum service life.

Installation
Lubrication

Lubrication Guide for Linear Motion Components

Grease types, relubrication intervals, and quantity recommendations.

Maintenance
Troubleshooting

Troubleshooting: Noise & Vibration

Common causes and solutions for abnormal noise in ball screws and linear guides.

Troubleshooting
Shipping

Global Shipping & DDP Delivery

Shipping options worldwide, DDP service for US/EU/SEA, delivery time estimates.

Logistics
Custom

Custom Manufacturing & Engineering Support

Tailored solutions: custom machining, non-standard lengths, special materials.

Custom Service

Frequently Asked Questions

Q: What is your lead time for standard products?

A: Standard products: 7-15 days. Custom products: 20-30 days depending on complexity.

Q: Do you offer DDP shipping?

A: Yes! DDP (Delivered Duty Paid) is available for USA, Germany, France, Italy, Spain, Thailand, Vietnam, Malaysia, and Indonesia. Terms apply based on order volume.

Q: Can you customize ball screw end machining?

A: Absolutely. We offer custom shaft ends, special threads, keyways, and non-standard lengths.

Q: Do you provide technical support for installation?

A: Yes, our engineering team provides remote support, documentation, and on-site training for large projects.

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