ABEC 3 radial MAX bearing with 12 mm inner diameter, 24 mm outer diameter, 6 mm thickness and double-lip type sealing with strong contact, making a labyrinth seal.

MAX bearings are designed specifically for suspension pivots, Enduro Bearings pioneered MAX type bearings almost 20 years ago for bicycles to address the challenges associated with mountain bike pivots. These bearings have 35-40% more load capacity than standard radial bearings. They accomplish this with a special design where the maximum number of balls are inserted into the bearing. The race grooves are deeper on these bearings for more lateral support for the twisting and multiple forces associated with mountain bike pivots. LLU seals give maximum protection against the elements, while keeping the 90% fill of Almagard Extra High Pressure Grease inside.

ABEC 3 bearings use grade 10 Chromium Steel Balls and 52100 High Carbon Chromium Alloy Races.
The high precision balls are within 10/1.000.000″ round, twice as round as the industry standard, at it’s highest level.
The alloy races are made from a vacuum de-gassed process for the purest chromium alloy steel, hardened to R-62, extremely tough and very durable. Polished to a mirror finish for ABEC-3 precision and noiseless movement. The riveted Steel Retainer stands for toughness, ABEC-3 tolerances and noise tested.

he SM-BB52 is a popular Shimano bottom bracket, which is used in countless cranks such as Alivio, Deore and ZEE. Its 24 mm Hollowtech II standard bearings deliver an optimal stiffness-to-weight ratio and rotational efficiency. The SM-BB52 BSA bottom bracket is available in a version for 68 and 73 mm shell width and in a version for 83 mm shell width.

Specifications:

Application: All Mountain, City & Touring, Enduro, Downhill
Type: BSA
Shell Width: 68 mm / 73 mm
Axle Diameter: 24 mm (Hollowtech II)

Technical Information:

Bearings: steel
Bottom Bracket Cup Material: Aluminium
Bottom Bracket Centre Tube Material: synthetic resin

Compatibility:

Recommended for:
– ZEE FC-M640, FC-M645
– Deore FC-M591, FC-T611, FC-M610, FC-M612, FC-M615, FC-M617, FC-M6000, FC-T6010, FC-M4100, FC-M5100, FC-M6100, FC-M6120, FC-M6130
– Alivio FC-M4050, FC-M4060, FC-T4060
– FC-M552-L, FC-M552-S, FC-M622, FC-M625, FC-M627
– FC-MT200, FC-MT500, FC-MT510, FC-MT511, FC-MT512, FC-MT610
– FC-T551

Features:

– painted bearing cups
– high drivetrain efficiency
– improved sealing and smoother movement

Technology:

Hollowtech II
Shimano Hollowtech II is a crank bottom bracket system designed to achieve an ideal ratio of stiffness, weight and rotational efficiency. It is based on an integration of the bottom bracket and the right crank arm and works with a 24 mm axle or bearing diameter, which has proven to be optimal in terms of stability. In many cases, the bearing cups are on the outside so that the load is better distributed. High-quality precision seals ensure a long service life.

Models:

BSA:
Shell Width: 68 mm / 73 mm
Manufacturer Number: E-SMBB52B

Contents:

– 1 x Shimano SM-BB52 right bearing cup, with bearings
– 1 x Shimano SM-BB52 left bearing cup, with bearings
– 1 x Shimano bottom bracket sleeve
– 3 x spacer