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The Enduro ABEC 5 61903 LLU/LLB Bearing - 17X30X7is the next step in performance from the popular ABEC 3 series. It features military-grade, high-precision HRC-64 hardened grade 5 chrome steel balls and mirror-polished raceways made of high-carbon 52100 chrome alloy. This combination allows Enduro’s ABEC 5 bearings to use tolerances twice as strict as ABEC 3 and operate silently. Graphite/nylon ball retainers allow for virtually frictionless movement and provide constant lubrication to maximize bearing life.
Sealed ABEC 5 Bearing - 61903 SRS - 17 x 30 x 7 mm
From the renowned bearing brand "Enduro Bearings"
Part Number: 61903
Dimensions: 17 mm (inner) x 30 mm (outer) x 7 mm (width)
Weight: 15.86 grams
Features:
SRS: "Snap Ring Seals," axial face seal.
Typically used for: Mountain bike or road bike wheel hubs.
Bottom brackets.
ABEC 5 bearings feature:
Grade 10 chromium steel balls.
High-precision balls with a tolerance of within 5/1,000,000.
Superior hardness level: HRC-65
Graphite/nylon ball retainers provide frictionless operation and ensure constant lubrication.
52100 high-carbon chromium alloy raceways.
No noise during operation.
*The photo may not accurately reflect the actual product
