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Inch Series Open Bearings

Both the ferrule and steel ball are made of GCR15, and the retainer and dust cover are made of AISI304.
Description
Inch Series Open Bearings
Type Bore Diameter  Outer Diameter Width  Open Load Rating  Cr(N) Load Rating Cor(N) Max.Speed.Grease(*1000RPM) Max.Speed.Oil(*1000RPM)
R1-4 OPEN 1.984 6.35 3.751 284 96 67 80
R133 OPEN 2.380 4.762 2.380 144 53 80 95
R1-5 OPEN 2.380 7.938 3.571 552 176 60 71
R144J OPEN 3.175 6.350 2.779 311 110 67 80
R144 OPEN 3.175 6.350 2.779 284 96 67 80
R2-5 OPEN 3.175 7.938 3.571 558 180 60 67
R2-6 OPEN 3.175 9.525 3.571 640 227 53 63
R2 OPEN 3.175 9.525 3.967 631 219 56 67
R2 OPEN 3.175 12.70 4.366 640 227 53 63
R155 OPEN 3.967 7.938 3.175 359 150 53 53
R156 OPEN 4.762 7.938 3.175 359 150 53 63
R166 OPEN 4.762 9.525 3.175 709 272 50 60
R3 OPEN 4.762 12.7 4.978 1301 488 43 53
R3A OPEN 4.762 15.875 4.978 1480 621 38 45
R168 OPEN 6.350 9.525 3.175 373 172 48 56
R188 OPEN 6.350 12.7 4.762 1082 442 40 50
R4 OPEN 6.350 15.875 4.978 1480 621 38 45
R4A OPEN 6.350 19.050 7.142 2336 896 36 43
R1810 OPEN 7.938 12.70 3.967 542 276 40 48