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Enduro Bearings · Headset bearing
Stainless steering that shrugs off sweat and rain.
$69.99
PriceIn stock, ready to ship
A 440C stainless steel angular contact headset bearing from Enduro, sized 37 x 46.85 x 7 mm with 45 x 45 degree angles (the MR137 size). A long-lasting replacement for integrated headsets that use this bearing.
Sold by Ashburton Cycles
Verified store
Price
$69.99
Size
37 x 46.85 x 7 mm
Angles
45 x 45 degrees
Material
440C stainless steel balls and races
The Enduro ACB 4545 137 SS is an angular contact headset bearing sized 37 x 46.85 x 7 mm with 45 x 45 degree chamfers, known across the industry as an MR137. It suits integrated headsets and frames built around this bearing.
Both the balls and races are 440C stainless steel, the hardest of the standard 440-series stainless alloys, so it resists the corrosion that ruins headsets exposed to rain, sweat and spilled sports drink. LLB-type seals and a 90% fill of Almagard 3752 grease add more protection.
Enduro makes a point that its stainless headset bearings are the same ones found in many popular headset brands. When your steering starts to feel notchy or rough, this is a direct swap for a worn MR137.
Riders replacing a worn MR137 (37 x 46.85 x 7 mm, 45/45) headset bearing.
MR137 size
37 x 46.85 x 7 mm with 45 x 45 degree angles.
440C stainless
Balls and races resist corrosion from sweat and rain.
Angular contact
Spreads steering loads evenly across all balls.
Sealed and greased
LLB seals with 90% Almagard 3752 fill.
Every detail as listed by the manufacturer.
Enduro Bearings makes cartridge bearings designed specifically for bicycles, from hubs and bottom brackets to headsets and suspension pivots. The range covers high-carbon chromium steel, 440C stainless steel and ceramic-hybrid bearings, all built with deep-groove races and dual-lip labyrinth seals to keep grease in and grime out.
Enduro Bearings · Headset bearing
Stainless steering that shrugs off sweat and rain.
$69.99
In stockSize
37 x 46.85 x 7 mm
Angles
45 x 45 degrees
Material
440C stainless steel balls and races
Also known as
MR137
A 440C stainless steel angular contact headset bearing from Enduro, sized 37 x 46.85 x 7 mm with 45 x 45 degree angles (the MR137 size). A long-lasting replacement for integrated headsets that use this bearing.
The Enduro ACB 4545 137 SS is an angular contact headset bearing sized 37 x 46.85 x 7 mm with 45 x 45 degree chamfers, known across the industry as an MR137. It suits integrated headsets and frames built around this bearing.
Both the balls and races are 440C stainless steel, the hardest of the standard 440-series stainless alloys, so it resists the corrosion that ruins headsets exposed to rain, sweat and spilled sports drink. LLB-type seals and a 90% fill of Almagard 3752 grease add more protection.
Enduro makes a point that its stainless headset bearings are the same ones found in many popular headset brands. When your steering starts to feel notchy or rough, this is a direct swap for a worn MR137.
Riders replacing a worn MR137 (37 x 46.85 x 7 mm, 45/45) headset bearing.
MR137 size
37 x 46.85 x 7 mm with 45 x 45 degree angles.
440C stainless
Balls and races resist corrosion from sweat and rain.
Angular contact
Spreads steering loads evenly across all balls.
Sealed and greased
LLB seals with 90% Almagard 3752 fill.