All bearings are available in 52100 Chrome Steel or 440 Stainless Steel.
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Item #

Item Name

Bore Diameter (d)

Outer Diameter (D)

Width (B1)

Load Rating (Cr)

Max. Speed (Grease) x 1000

Max. Speed (Oil) x 1000

FR09 N/A 0.0400 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.0400 in1.016 mm N/A 0.1250 in3.175 mm N/A N/A 106 N N/A 115 rpm N/A 136 rpm
R0ZZ N/A 0.0469 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.0469 in1.191 mm N/A 0.1562 in3.967 mm N/A 0.0937 in2.380 mm N/A 112 N N/A 105 rpm N/A 124 rpm
R1ZZ N/A 0.0550 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.0550 in1.397 mm N/A 0.1875 in4.762 mm N/A 0.1094 in2.779 mm N/A 232 N N/A 97 rpm N/A 115 rpm
R1-4ZZ N/A 0.0781 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.0781 in1.984 mm N/A 0.2500 in6.350 mm N/A 0.1406 in3.571 mm N/A 284 N N/A 77 rpm N/A 91 rpm
R133ZZS N/A 0.0781 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.0781 in1.984 mm N/A 0.1875 in4.762 mm N/A 0.0937 in2.380 mm N/A 144 N N/A 92 rpm N/A 109 rpm
R1-5ZZS N/A 0.0937 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.0937 in2.380 mm N/A 0.3125 in7.938 mm N/A 0.1406 in3.571 mm N/A 552 N N/A 60 rpm N/A 71 rpm
R144JZZ N/A 0.1250 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.1250 in3.175 mm N/A 0.2500 in6.350 mm N/A 0.1094 in2.779 mm N/A 311 N N/A 67 rpm N/A 80 rpm
R144ZZ N/A 0.1250 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.1250 in3.175 mm N/A 0.2500 in6.350 mm N/A 0.1094 in2.779 mm N/A 284 N N/A 77 rpm N/A 91 rpm
R2-5ZZ N/A 0.1250 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.1250 in3.175 mm N/A 0.3125 in7.938 mm N/A 0.1406 in3.571 mm N/A 559 N N/A 70 rpm N/A 82 rpm
R2-6ZZ N/A 0.1250 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.1250 in3.175 mm N/A 0.3750 in9.525 mm N/A 0.1406 in3.571 mm N/A 641 N N/A 63 rpm N/A 75 rpm
R2ZZ N/A 0.1250 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.1250 in3.175 mm N/A 0.3750 in9.525 mm N/A 0.1562 in3.967 mm N/A 633 N N/A 66 rpm N/A 78 rpm
R2AZZ N/A 0.1250 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.1250 in3.175 mm N/A 0.5000 in12.700 mm N/A 0.1719 in4.366 mm N/A 641 N N/A 63 rpm N/A 75 rpm
R155ZZ N/A 0.1562 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.1562 in3.967 mm N/A 0.3125 in7.938 mm N/A 0.1250 in3.175 mm N/A 359 N N/A 53 rpm N/A 63 rpm
R156ZZS N/A 0.1875 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.1875 in4.762 mm N/A 0.3125 in7.938 mm N/A 0.1250 in3.175 mm N/A 360 N N/A 64 rpm N/A 76 rpm
R166ZZ N/A 0.1875 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.1875 in4.762 mm N/A 0.3750 in9.525 mm N/A 0.1250 in3.175 mm N/A 711 N N/A 59 rpm N/A 70 rpm
R3ZZ N/A 0.1875 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.1875 in4.762 mm N/A 0.5000 in12.700 mm N/A 0.1960 in4.978 mm N/A 1300 N N/A 51 rpm N/A 60 rpm
R3AZZ N/A 0.1875 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.1875 in4.762 mm N/A 0.6250 in15.875 mm N/A 0.1960 in4.978 mm N/A 1480 N N/A 42 rpm N/A 50 rpm
R168ZZS N/A 0.2500 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.2500 in6.350 mm N/A 0.3750 in9.525 mm N/A 0.1250 in3.175 mm N/A 373 N N/A 55 rpm N/A 65 rpm
R188ZZ N/A 0.2500 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.2500 in6.350 mm N/A 0.5000 in12.700 mm N/A 0.1875 in4.762 mm N/A 1080 N N/A 48 rpm N/A 56 rpm
R4ZZ N/A 0.2500 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.2500 in6.350 mm N/A 0.6250 in15.875 mm N/A 0.1960 in4.978 mm N/A 1480 N N/A 42 rpm N/A 50 rpm
R4AZZ N/A 0.2500 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.2500 in6.350 mm N/A 0.7500 in19.050 mm N/A 0.2812 in7.142 mm N/A 2340 N N/A 38 rpm N/A 45 rpm
R1810ZZS N/A 0.3125 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.3125 in7.938 mm N/A 0.5000 in12.700 mm N/A 0.1562 in3.967 mm N/A 541 N N/A 45 rpm N/A 53 rpm
R6ZZ N/A 0.3750 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.3750 in9.525 mm N/A 0.8750 in22.225 mm N/A 0.2812 in7.142 mm N/A 3330 N N/A 31 rpm N/A 37 rpm
R8ZZ N/A 0.5000 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.5000 in12.700 mm N/A 1.1250 in28.575 mm N/A 0.3125 in7.938 mm N/A 5110 N N/A 27 rpm N/A 32 rpm
R10ZZ N/A 0.6250 Inch (in) Bore Diameter (d) Shielded Inch Ball Bearing N/A 0.6250 in15.875 mm N/A 1.3750 in34.925 mm N/A 0.3438 in8.733 mm N/A 6000 N N/A 20 rpm N/A 24 rpm
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