
Description

Print tougher for longer
Equipped with E3D’s exclusive ultra-hard Bastion coating, these precision-engineered hardened-steel extruder gears and hobbs deliver exceptional performance with abrasive and fibre-filled filaments. Expertly crafted for optimised performance, each gear is coated with Bastion - a formulation specifically designed to minimise sliding wear. This reduces stress and friction, allowing the gears to maintain the same load as stock components for up to 70x longer than the stock option. Ideal for those printing with challenging filaments or high-volume users seeking reliable, long-lasting performance from their printer.
Gears that go the distance
The unique coating on these gears and hobbs is thinner than a human hair but packs a serious punch! Its exceptional combination of low friction and high hardness ensures long-lasting performance without compromising extrusion quality. With a 10–15% increase in load-carrying capacity compared to uncoated or stock options, these gears push through even the toughest filaments without frequent replacements.
Buttery-smooth extrusion time and time again
Stock hobb teeth get significantly worn down over time, reducing grip and print accuracy. Bastion coated hobbs maintain their performance for hundreds of hours. Enjoy consistent, precise extrusion, fewer clogs and jams, and smoother filament flow for cleaner prints with minimal artifacts or layer lines.


Close-up photos showing our Bastion coated hobbs and the factory fit/stock Bambu Lab hobbs. Both used hobbs went through 12 months equivalent of printing with at least 20kg of fibre-filled material, 10kg of glow in the dark along with all the standard test materials you’d expect.
Less maintenance, more printing
The self-lubricating graphite-like carbon bonds in the coating keeps gears running ultra-smooth, so you spend less time greasing your printer. Even without added oil, they outperform uncoated gears -but a small touch of lubrication every few months keeps them performing at peak efficiency.
Buying outside the UK?
Avoid additional charges and lead time by ordering from your local E3D Reseller.