MB=Machined Brass Cage, Inner Ring Centred. KR=Tapered Bore. E44=Outer Ring With Machined Lubrication Groove And Holes (Double Row Only). CC1=For Non-Interchangeable Cylindrical Roller Bearings, Clearance Less Than CC2. P4=Dimensional & Running A
Inner (d) Inch
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Outer (D) Inch
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Width (B) Inch
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Description from Medias
Manufacturer Part Number (MPN)
NN3021MB KRE44 CC1 P4
Bore
K - 1:12 Tapered Bore (Standard for Most Types)
Seal
No Seal
Cage Type
M - Brass Cage
External Modification
No External Modification
Radial Internal Play
C1 Internal Play (Less than C2)
Precision
P4 Precision (Higher than P5)
Heat Stabilization
Special Treatment
No Heat Stabilization - Temperatures up to 120°C