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ParameterNSKNUP100840 × 68 × 15 mmKOYONUP100840 × 68 × 15 mm
Comparable specifications
BrandNSKKOYO
DesignationNUP1008NUP1008
Product familyCylindrical roller bearingSingle-row / NUP
Detailed typeCylindrical roller bearingsCylindrical roller bearings
Bore diameterd40 mm40 mm
Outside diameterD68 mm68 mm
WidthB15 mm15 mm
Basic dynamic load ratingC33.5 kN31.2 kN
Basic static load ratingC029 kN25.7 kN
Fatigue load limitPu—3.1 kN
Limiting speednG—10000 r/min
Mass≈m—0.223 kg
CageMachined brass—
Boundary dimensions
Bearing widthB15 mm—
Minimum bearing chamferr min.1 mm—
Minimum secondary bearing chamferr1 min.0.6 mm—
Roller inscribed circle diameterFw47 mm—
Catalogue reference mass
Approximate shared-row mass — not separately stated for each rib arrangement0.223 kg—
Classification
Official Category Path—Cylindrical roller bearings - Single-row - NUP
Official Classification 1—Cylindrical roller bearings / Single-row / NUP
Construction
Single-row construction typeNUP—
Rib arrangementTwo outer-ring ribs; one integral and one loose inner-ring rib—
Standard cage materialMachined brass—
Standard cage markingM is usually omitted for this series—
Other cage codes listed for this catalogue rowNone listed in this row—
Precision — designation omission ruleISO Normal when no precision suffix is specified—
Clearance identification — verify interchangeabilityNo clearance suffix shown. CN omission applies to interchangeable designs; do not infer a numerical clearance.—
Optimized crowning noteNo optimized-crowning asterisk on this row—
Load ratings — standard cage
Basic dynamic radial load ratingCr33500 N—
Basic static radial load ratingC0r29000 N—
Lubrication-qualified speed — standard cage
Thermal speed rating — oil bath10000 r/min—
Mechanical limiting speed — forced oil circulationNot stated in this catalogue row—
Limiting speed — grease10000 r/min—
Limiting speed — oil bath12000 r/min—
Manufacturer Identity
Official Class Key—040-010-000
Mounting dimensions — shown arrangement
Minimum shaft shoulder diameterdb min.44 mm—
Maximum housing shoulder diameterDa max.63 mm—
Maximum adjacent fillet radiusra max.1 mm—
Maximum secondary adjacent fillet radiusrb max.0.6 mm—
Technical Data
d—68 mm
B—15 mm
R(Min.)—1 mm
R1(Min.)—0.6 mm
Fw—47 mm
Ew—- mm
Basic Load Ratings : Cr—31.2 kN
Basic Load Ratings : C0R—25.7 kN
Fatigue Load Limit : Cu—3.10 kN
Limiting Speeds(Grease Lub.)—10000 min-1
Limiting Speeds(Oil Lub.)—12000 min-1
Sd1—- mm
B1—- mm
B2—- mm
Da(Min.)—45 mm
Db(Min.)—- mm
Db(Max.)—- mm
Dc(Min.)—- mm
Dd(Min.)—- mm
Da(Max.)—63 mm
Ra(Max.)—1 mm
Rb(Max.)—0.6 mm
Mass(Refer.)—0.223 kg

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