Selection & Comparison Guides

Format-versus-format and sourcing-channel guides for specifying without over-engineering.

How to Choose a Controller: PLC, PAC or Relay

Relays suit a few fixed functions, smart relays small machines, micro PLCs fixed I/O, modular PLCs and PACs large systems. How to count I/O and choose.

October 22, 2026

30 Free Industrial Calculators and Cross-References

Thirty free tools, no sign-up: calculators, cross-references, compatibility selectors and part decoders. What each one does and doesn't.

October 2, 2026

SKF, FAG, Timken, NSK and NTN: How to Choose a Bearing Brand

How major bearing brands relate to each other, what actually differs, and what to match when switching brands.

September 21, 2026

How to Write a Parts Request That Gets a Faster, More Accurate Answer

The details that let a supplier find, verify and source your part quickly, and how to press a manufacturer on lead time.

September 19, 2026

Drop-In Replacement Checklist: What Must Match Before You Swap an Industrial Part

A part that fits is not always a part that works. A practical checklist for judging whether a replacement is truly drop-in.

September 19, 2026

Independent Distributor vs. Manufacturer Lead Time: What Actually Gets Your Line Running

How an independent distributor helps with long lead times, hard-to-find and obsolete parts, and verified drop-in replacements.

September 19, 2026

Ordering the Exact Part: Why Near-Identical Part Numbers Are Not Interchangeable

A practical checklist for maintenance and purchasing: why a one-character change in an industrial part number is a different part, and what to send before you.

September 19, 2026

Why Searching a Parts Catalog by Manufacturer Name Can Quietly Miss Results

Brand-name misspellings, sub-brand splits, and unrelated companies with similar names can all make a distributor catalog search miss real listings.

September 13, 2026

Which Bearing Brand Should You Actually Specify? SKF, FAG, Timken, NSK and NTN Compared

The major bearing brands build to the same ISO boundary dimensions, so "which is best" is rarely the question that decides a job. Here is what genuinely differs between SKF, FAG, Timken, NSK, NTN and Koyo — and what our own catalog data shows about who actually covers what.

August 8, 2026

Choosing the Right MRO Sourcing Channel

Understanding the four primary channels for sourcing industrial parts—OEMs, authorized distributors, independent quote-based suppliers, and surplus brokers—helps maintenance teams make informed procurement decisions.

July 24, 2026

How to Evaluate an Industrial Distributor

Key factors maintenance and procurement teams should verify when selecting an industrial MRO parts distributor, from sourcing networks to shipping capabilities.

July 24, 2026

Quote-Based vs. Stocked Parts Distribution

Comparing quote-based sourcing and stocked distribution for low-volume and hard-to-find industrial MRO parts, including where each model works best.

July 23, 2026