Engineering blog
Technical articles for shrink disc selection, shaft fit review, tightening sequence and maintenance planning.
2026-08-26
Practical answers about Ringfeder, including Ringfeder Power Transmission USA Corporation vs GmbH, spur gear mounting, rotary torque sensors, and what VFD stands for.
Read note2026-08-26
A practical procurement checklist for buying Ringfeder couplings and locking assemblies. Covers AC servo motors, VFD basics, shaft dimensions, and vendor verification.
Read note2026-08-25
After $11,000 in specification mistakes, a maintenance engineer explains why most drivetrain failures start with component selection — from stepper motor speed limits and coupling torque charts to pillow block bearings and timing belts. Includes lessons about ringfeder coupling specs and ringfeder power transmission s.r.o.'s engineering support.
Read note2026-08-25
A maintenance engineer shares hard-earned lessons from 41 documented power transmission mistakes—RINGFEDER locking assembly installation, gear reducer service factors, "what's a ball bearing" basics, and an SG90 servo motor torque story. Includes the checklist he built.
Read note2026-08-24
A procurement manager shares a 7-step checklist for buying couplings, v-belts, motors, and bearings—covering ringfeder torque specs, total cost of ownership, and hidden costs that never make it into the quote.
Read note2026-08-24
Ringfeder torque specs aren't a single number. I've spent seven years managing power transmission purchases. Here's how to use Ringfeder Power Transmission GmbH ratings the right way.
Read note2026-08-21
A procurement manager's opinionated take on why ringfeder torque specs, reducers, and deep groove ball bearings matter more than unit price — especially for small orders.
Read note2026-08-21
A practical comparison between Ringfeder couplings and spherical bearings in a planetary gear drive rebuild—plus what actually happened to Pete Jackson Gear Drives and why it matters for component support.
Read note2026-08-20
An admin buyer needed pillow block bearings and a rigid coupling, and had to look up what's a VFD. A low quote turned costly until a Ringfeder distributor stepped in.
Read note2026-08-20
An emergency parts specialist with 200+ rush orders under his belt explains why the Ringfeder torque chart is the first spec to verify—before speed, before price, before anything else.
Read note