(dimensions in inches)
Bearing Type - KPxxB
Bore Dia (d) - 3.5000
Outer Dia (D) - 4.4375
Outer Width (Bo) - 0.4690
Inner Width (Bi) - 0.5310
Dynamic Load Rating (Cr) - 7,970
Static Load Rating (Cor) - 31,200
Max. Shaft Shoulder Dia. Inner (Li) - 3.8
Ball Qty - 50
Ball Dia (Dw) - 0.2500
Max. shaft corner radius, or 45 deg. chamfer (ch1) - 0.039
Max. housing corner radius, or 45 deg. chamfer (ch) - 0.039
Material - 52100 Chrome steel or equivalent
The dynamic load rating given is for outer race rotation. The dynamic load rating for inner race rotation is 8240 pounds.
The static thrust load rating is 13700 pounds.
The bore diameter tolerance is +.0000 / -.0010".
The outside diameter tolerance is +.0000" / -.0010".
The tolerance for the inner race width and the outer race width is +.000" / -.005"
The load ratings listed for these bearings are determined by the formulas used specifically for airframe bearings. These ratings are not equivalent to ratings calculated from the ABMA formulas used for most antifriction bearing products.
This bearing is intended for commercial applications. You must notify the AST sales department contact at the time of your inquiry if the bearing will be used in an airworthy application.
The bearing has two removable seals made of woven fabric Teflon.
Hot number:NTN 7310 C/DB NTN 32315 TIMKEN 3877/3820-B OKB M-2311Z1 KOYO 23260RK IKO CRBF 8022 AD UU SNR EXP318 PFI PW35640037CS INA SCE2012 CX SA201 ELGES 63818 BAL 94764 FAG R-2 SKF BC2B 320075 NOK VPF-55