A selected range of 29407 (29x40x7mm) bearings from trusted names: HSC Ceramic and Aita Ceramic. Each brand offers proven performance, whether you’re a commuter, racer, or weekend rider.

HSC Ceramics, a 100% Australian-owned brand, assembles its bearings in Melbourne using ABEC 7 steel races and Si3N4 Grade 3 ceramic balls. Affordable yet high-performing, HSC bearings have been trusted locally for over 20 years and even power record-holding Australian cyclists (116 km/h).

Aita Ceramic has supported Australian Paralympians and National Teams since 2015, contributing to Olympic gold medals and multiple Australian and Oceania records. Working with the Australian Institute of Sport, Aita delivers a wide range of high-performance ceramic bearings, and their bottom bracket range covers virtually every standard in the market. Compared to the HSC brand, Aita can be a bit more expensive, but considering their high profile and in comparison with other international brands, the price is still very competitive.

With options from local innovators to global leaders, our 29407 bearings offer smoothness, durability, and proven reliability for every cycling condition.

29407 (29x40x7mm) Bearing

From $50.00

Brand

Grade 3, Si3N4 ceramic balls (Made in Japan): Surpass steel balls in roundness by a factor of 8 and offer a remarkable 4 times smoother performance.

ABEC 7 alloy steel races: Engineered to provide high precision and stability for a superior riding experience.

Pre-lubricated with HSC Ceramic Grease and sealed (Made in Australia): Our specially formulated grease ensures minimal resistance, maximizing efficiency and speed.

C3 clearance: Play a crucial role in ensuring optimal performance and longevity of bearings. It determines the level of tightness when the bearing is installed in the BB or hub shell, as well as the snug fit of the axle into the inner race. Choosing C3 clearance provides a safer option, as it allows for the necessary pre-load on races commonly found in BBs and hubs. This helps prevent issues such as tight and notchy operations, ensuring a smoother and more reliable experience.

Assembled and hand-checked in Australia: Every bearing is meticulously crafted and inspected by our team to ensure top-notch quality.
ABEC7 high chrome vacuum degassed bearing steel races with quenching and tempering hardening.

Ultra-smooth polished bearing raceway.

Low-friction ceramic grease minimizes friction and increases bearing life.

Light-contact rubber seals keep dirt and moisture out.

Grade 3 Si3N4 ceramic bearing balls (Made in Japan): Surpass steel balls in roundness by a factor of 8 and offer a remarkable 4 times smoother performance. Delivering exceptional smoothness and reduced friction for optimal performance.

C3 clearance: Play a crucial role in ensuring optimal performance and longevity of bearings. It determines the level of tightness when the bearing is installed in the BB or hub shell, as well as the snug fit of the axle into the inner race. Choosing C3 clearance provides a safer option, as it allows for the necessary pre-load on races commonly found in BBs and hubs. This helps prevent issues such as tight and notchy operations, ensuring a smoother and more reliable experience.

Used for Road, TT, Tri, Cross, MTB and Track.

Assembled and hand-checked in Australia: Every bearing is meticulously crafted and inspected by our team to ensure top-notch quality.

Bike Bearing Store

Australia

29407 (29x40x7mm) Bearing

HSC Ceramic Bearing Specifications

AITA Ceramic Bearing Specifications