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Super Precision, High Speed Spindle Bearings


7300 High-speed angular contact ball bearing (ISO 03)


7300 C = 15° Contact Angle

7300 AC = 25° Contact Angle

7300-High-speed-angular-contact-ball-bearings-ISO-03
COREDEMAR
Part Number
Boundary dimensions Load rating Limiting speed Weight
d D B rsmin r1smin a Cr Cor Grease Oil kg
mm         KN r/min
7304 AC 20 52 15 1.00 0.60 17.9 9.6 33,000 25,000
7305 C 25 62 17 1.00 0.60   28.0 16.1 29,000 22,000
7305 AC 25 62 17 1.00 0.60 27.0 15.6 27,000 20,000
7306 C 30 72 19 1.00 0.60   32.2 20.2 24,500 18,000
7306 AC 30 72 19 1.00 0.60 30.9 19.4 23,000 17,000
7307 C 35 80 21 1.50 1.00   40.4 25.9 22,000 16,500
7307 AC 35 80 21 1.50 1.00 38.9 24.9 21,000 16,000
7308 C 40 90 23 1.50 1.00   52.4 35.4 19,000 14,000
7308 AC 40 90 23 1.50 1.00 50.3 34.0 18,000 13,500
7309 C 45 100 25 2.00 1.00   62.8 43.3 17,000 13,000
7309 AC 45 100 25 2.00 1.00 60.3 42.1 16,000 12,000
7310 C 50 110 27 2.00 1.00   73.8 52.2 15,600 11,700
7310 AC 50 110 27 2.00 1.00 70.6 50.0 14,700 11,000
7311 C 55 120 29 2.00 1.00   91.9 65.9 14,000 11,000
7311 AC 55 120 29 2.00 1.00 91.0 63.4 13,500 10,000
7312 C 60 130 31 2.00 1.00   105.0 76.3 13,000 9,700
7312 AC 60 130 31 2.00 1.00 101.0 73.4 12,400 9,300
7313 C 65 140 33 2.00 1.00   119.0 87.9 12,000 9,000
7313 AC 65 140 33 2.00 1.00 114.0 73.6 11,500 8,400
7314 C 70 150 35 2.00 1.00   133.0 100.0 11,400 8,200
7314 AC 70 150 35 2.00 1.00 128.0 96.3 10,700 7,800
7315 C 75 160 37 2.00 1.00   146.0 114.0 10,600 7,900
7315 AC 75 160 37 2.00 1.00 139.0 100.0 10,000 7,500

Legend

d Inner Diameter Rs min Radius RPM Rotations/Minute
D Outer Diameter R1s min Radius KN Kilo Newtons
B Width Ra Axial Rigidity N Newtons (1N = .2248 lbs.)
Dw Ball Size Rr Radial Rigidity μ Micron (.00004′)
Z Ball Quantity mm Millimeters

 

packaging_specifications_download_pdf 7300 7300 High-speed angular contact ball bearings (ISO 03) b Print v1