KB6_ _ _ZZ - Heat-Resistant Grease, Filled Ball Bearings

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KB6903ZZ

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Part No.	KB6903ZZ KB6903ZZ
Material of Inner/Outer Ring	440C Stainless Steel
Hardness of Inner/Outer Ring	57~63HRC
Material of Shield	304 Stainless Steel
Material of Rolling Element	440C Stainless Steel
Material of Retainer	304 Stainless Steel
Operating Temperature	0 ~ +230	°C
Bearing No.	6903ZZ 6903ZZ
d	17 17	mm
D	30 30	mm
B	7 7	mm
r (min)	0.3 0.3	mm
Basic Load Rating Cr (Dynamic)	3.90 3.90	kN
Basic Load Rating Cor (Static)	2.04 2.04	kN
Allowable Revolution Frequency (Reference)	2100 2100	rpm
Relative Dimension Ds (min)	19 19	mm
Relative Dimension Ds (max)	19.5 19.5	mm
Relative Dimension dh (max)	28 28	mm
Relative Dimension R (max)	0.3 0.3
Mass (Reference)	18 18	g

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