Common Ball Transfer Unit Problems: Noise, Wear, Load Issues, and Fixes


Most ball transfer unit failures aren’t random. Noise, wear patterns, and load issues each trace back to identifiable causes at installation or in the operating environment. Here’s how to read the symptoms and correct the right thing.
Stainless Steel Spherical Plain Bearings in FSAE and Motorsport Suspension


FSAE teams default to spherical bearings over rod ends at A-arm joints for a structural reason, not a cost reason. Here’s the load path logic and the spec decisions that affect a season’s reliability.
Why a Stainless Steel Spherical Plain Bearing Spins in the Housing


A spinning outer ring destroys a housing bore fast. This guide covers the four root causes behind it, how to confirm the diagnosis, and the repair options that actually hold in stainless assemblies.
Press Fit or Slip Fit? How to Install Stainless Steel Spherical Plain Bearings


Most spherical bearing failures trace back to the wrong housing fit. This guide breaks down when to press, when to slip, and what changes when your housing is aluminum or your bearing is PTFE-lined.
When Should You Use a Spherical Bearing Instead of a Rod End?


Rod ends and spherical bearings solve different problems. Choosing wrong costs you service life. This guide breaks down the engineering decision by load path, housing type, and misalignment requirements.
What Causes Noise and Play in Spherical Bearing Assemblies?


Knocking, squealing, and measurable play in a spherical bearing assembly aren’t random. Each symptom points to a specific cause. Here’s how to read them and decide what to do next.
Common Causes of Failure in Stainless Steel Spherical Bearings


Most spherical bearing failures trace back to four root causes: improper preload, wrong grade selection, surface contamination, and accumulated misalignment. Here’s how to diagnose and prevent each.
Is a Stainless Steel Prop Worth It on a 50HP Outboard?


A practical, contrarian look at whether a stainless steel prop earns its price tag on a 50HP outboard, including the prop strike risk.
Stainless Steel vs Aluminum Propeller


Choosing between an SS prop and aluminum is not just about speed or service life. The real engineering question is which component you want to fail when you hit a rock at 30 knots.
Will Stainless Steel Prop Damage My Lower Unit?


A stainless steel prop transmits more peak impact energy to the lower unit before its hub slips. But modern flo-torq hub designs and proper pitch selection close most of that gap. This article explains the three variables that control whether an impact shears your prop hub or strips your gearcase.