(dimensions in inches)
Bearing Type - Shielded
Bore Dia (d) - 0.3125
Outer Dia (D) - 0.5000
Width (B) - 0.1562
Radius (min) (rs) - 0.006
Dynamic Load Rating (Cr) - 104
Static Load Rating (Cor) - 50
Max Speed (Grease) (X1000 RPM) - 40
Max Speed (Oil) (X1000 RPM) - 48
Max. Shaft Shoulder Dia. Inner (Ui) - 0.4
Min. Housing Shoulder Dia., Outer (Uo) - 0.455
Ball Qty - 12
Ball Dia (Dw) - 0.0472
Weight (g) - 1.57
Precision - A1
Standard Clearance - K25
Material - Martensitic Stainless Steel
Also available in 52100 Chrome Steel
ABEC Grades 1, 3, 5, 7, and 9 are available.
Two metal shields = (ZZ), also available with a single metal shield = (Z).
| Model No. | Inner Diameter | Outer Diameter | Width | Brand | Type |
| 2RNU8403 | 420,000 | 730,000 | 230,000 | NTN | Cylindrical Roller Bearings |
|---|---|---|---|---|---|
| 6212-2RS | 60 | 110 | 22 | Fersa | Deep Groove Ball Bearings |
| 6308FT150ZZ | 40,000 | 90,000 | 23,000 | SNR | Deep Groove Ball Bearings |
| F686ZZ | 6 | 13 | 5 | ISO | Deep Groove Ball Bearings |
| GE 40 FW-2RS | 40 | 68 | 40 | INA | Plain Bearings |
| K110X118X30H | 110 | 118 | KOYO | Needle Roller Bearings | |
| K58x65x18 | 58 | 65 | 18 | CX | Needle Roller Bearings |
| GEC1000FBAS | 1000 | 1320 | 438 | SKF | Plain Bearings |
| K15X19X17SE | 15 | 19 | KOYO | Needle Roller Bearings | |
| NU214 | 70 | 125 | 24 | CRAFT | Cylindrical Roller Bearings |
| NU319 | 95 | 200 | 45 | KOYO | Cylindrical Roller Bearings |
| NUP2972 | 360 | 480 | 72 | ISO | Cylindrical Roller Bearings |
| PW35680037CS | 35 | 68 | 37 | PFI | Angular Contact Ball Bearings |
| S61912 | 60 | 85 | 13 | ZEN | Deep Groove Ball Bearings |
| SL11938 | 190 | 260 | 101 | INA | CYLINDRICAL ROLLER BEARINGS |
| 2282 | 1.6250 | 2.3810 | INA | THRUST BALL BEARINGS | |
| UCF210-31S6PL | 1.9375 | FYH | THERMOPLASTIC PILLOW BLOCKS | ||
| NUP230 | 150 | 270 | 45 | STEYR | CYLINDRICAL ROLLER BEARINGS |
| 32216J2 | 80 | 140 | 33 | SKF | TAPERED ROLLER BEARINGS |
| W629ZZ | 9 | 26 | 8 | SKF | DEEP GROOVE BALL BEARINGS |
Hot number:NACHI 2311 KOYO 23232R Timken 385A/384D+X1S-385A KOYO 3NC HAR007C FT KOYO 3NCN1007K NTN 4T-45282/45220 SKF AS 140180 NTN KBK8X11X8.8 NTN NK45X58X20 SKF NRT 325 A NTN RNAO-65×85×60ZW INA KRV-47-PP SKF HMV24E SKF SY11/8TF CONSOLIDATED 7211TGP/4 FBJ 31594/31521 KOYO 54209 KOYO 6016ZZ CYSD 6215 SKF 6326 Ruville 7012 CX 812/600 NTN DCL1216 INA K81240-M CX Q226 ISO NU3156 INA ZKLF2068-2RS-2AP FAG B7200C.T.P4S Torrington SAF611 SKF RMS-11-2Z
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