High precision, low noise, high durability, long life, ABEC3-7, RoHS by SGS, Inch R series bearings BearingReferenceBoundaryDiamatersBasic Dynamic BasicStaticLimitingSpeeds (10,000r/min) dDBB1OpenShieldInchInchInchInchCr(kN)Cor(kN)GraseOilR090.040.1250.04690.1080.02915.717.7R0ZZS0.04690.15620.06250.09370.1080.03412.814.3R1ZZ0.0550.18750.07810.10940.2350.06910.712R1-4ZZS0.07810.250.09370.14060.2480.0987.98.9R133ZZS0.09370.18750.06250.09370.1860.0599.210.4R1-5ZZS0.09370.31250.10940.14060.5490.1766.47.2R144ZZ0.1250.250.09370.01940.3140.1086.97.8R2-5ZZ0.1250.31250.10940.14060.5590.1765.96.7R2-6ZZ0.1250.3750.10940.14060.6370.2255.25.8R2ZZ0.1250.3750.15620.15620.6270.2165.25.8R2AZZ0.1250.50.17190.17190.6370.2254.24.7R155ZZ0.15620.31250.10940.1250.3630.1475.56.2R156ZZ0.18750.31250.10940.1250.3630.1475.25.8R166ZZ0.18750.3750.1250.1250.7060.2744.65.2R3ZZ0.18750.50.15620.1961.30.493.84.2R168ZZ0.250.3750.1250.1250.3720.1764.24.7R188ZZ0.250.50.1250.18751.080.4413.53.9R4ZZ0.250.6250.1960.1961.480.61733.3R4AZZ0.250.750.21880.28122.330.8922.62.9R1810ZZ0.31250.50.15620.15620.5390.2743.23.6R6ZZ0.3750.8750.21880.28123.331.422.12.3R1038ZZ0.3750.6250.15620.8530.4312.62.9