Burrell crank bearings

Sandwich Crankshaft Bearings

February 27, 2021 Nigel 0

Looking at the slot in the tender I decide to make sandwich crankshaft bearings for the Burrell. Sandwich refers to the layers of the bearings. Essentially a 12mm brass square that is 1.6mm thick in [more…]

turning phosphor bronze bearing with glanze tooling

Rear Axle PB Bearings

February 9, 2021 Nigel 2

The rear axle PB bearings for the 1/20th scale Burrell traction engine actually turned out quite a delight to turn. Phosphor bronze (PB) can be quite difficult to machine. Hence I thought I would try [more…]

linear brass bearings fitted to Genmitsu z-axis

Linear Bearings

November 12, 2020 Nigel 2

I think this post should actually be titled “cheap linear bearings” as I don’t think all are equal. However, the bearings found in low end CNC machines are effectively parts from the inkjet printer industry. [more…]

genmitsu cnc in case

Sainsmart Genmitsu Z-axis

November 2, 2020 Nigel 0

I bought this small CNC machine to engrave the smokebox door on my miniature traction engine, but the Sainsmart Genmitsu Z-axis accuracy is poor. Poor in a number of ways, but primarily down to the [more…]

conrod roughed out from steel bar

Connecting Rod

December 29, 2018 Nigel 0

The part in an internal combustion engine that connects the piston to the crankshaft. It changes reciprocating motion of the piston into rotary motion of the crankshaft or vice versa. A connecting rod consists of [more…]

Guide Bearing Failure on BS250

April 9, 2016 Nigel 0

I went to change the blade on my Record BS250 bandsaw and the lower set of bearings were locked solid, you could just about feel movement if you rocked them back and forth. I removed the metal shields [more…]