M4=Machined Brass Cage, Rolling Element Centered; Different Designs Or Material Grades Are Identified By A Figure Or A Letter , e.g. M2, MC. P6=Dimensional And Running Accuracy To ISO Tolerance Class 6 (Better Than Normal).
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)
6309M4A/P6
Bore
C - Cylindrical Bore
Seal
No Seal
Cage Type
M - Brass Cage
External Modification
No External Modification
Radial Internal Play
Cn Normal Internal
Precision
P6 Precision (Higher than Standard)
Heat Stabilization
Standard Lubrication
Special Treatment
No Heat Stabilization - Temperatures up to 120°C