The TurboTight SF-1F Flanged Self-Lubricating Bearing (sleeve bushing) is a dry, composite bushing designed to operate without external oil or grease. They are typically used to support shafts through alloy casting such as pivot point or suspension shafts on eScooter swing arms.
Also available non-flanged (SF-1).
Key Characteristics:
Self-lubricating: Requires no grease during its lifespan (maintenance-free).
Low friction: The PTFE lining yields a low coefficient of friction and smooth sliding performance without stick-slip behavior. Protects softer alloy casting from fast-moving alloy steel shafts.
Comprised of three-layers (composite):
Backing (outer side): A low-carbon steel or bronze/stainless steel outer shell that gives the bearing mechanical strength and structural support.
Interlayer: A porous sintered spherical bronze layer bonded to the steel backing to provide strong thermal and mechanical anchoring.
Surface Layer (inner side): A mixture of PTFE (polytetrafluoroethylene/Teflon) and filler materials (often including lead or lead-free alternatives) rolled into the bronze pores to create a low-friction, wear-resistant sliding face. During operation, the PTFE layer transfers a microscopic film onto the mating shaft, making them completely maintenance-free under dry friction conditions.
Typically required to replace end-of-life factory-fitted bearings (or retrofitted) to restore precision to matting parts, such as swing arm shafts.
Naming convention: ID x OD x Length x Flange OD
Notes:
This catalogue item was created Q4 2026 and progressively being built out.