 
| Old No. | 639/3-ZZ |  Two Shields ZZ | |
| Dimensions (metric) | d | 3 | |
| D | 8 | ||
| B | 4 | ||
| Approx. Wgt. lbs | .0020 | ||
| Interchange | ADR | - | |
| ISC | 693ZZS | ||
| Nachi | 693ZZ | ||
| NMB | R-830ZZ | ||
| NTN | W693ZZA | ||
| RMB | - | ||
| SKF | - | ||
| 1)  Also available with one shield - suffix “Z”. No change in width dimensions. | |||
| Model No. | Inner Diameter | Outer Diameter | Width | Brand | Type | 
| 22311 MBW33 | 55 | 120 | 43 | MPZ | Spherical Roller Bearings | 
|---|---|---|---|---|---|
| 15580/15523 | 26,988 | 60,325 | 19,842 | CX | Tapered Roller Bearings | 
| 23224 KW33 | 120 | 215 | 76 | ISO | Spherical Roller Bearings | 
| 60/28-2RD | 28 | 52 | 12 | KOYO | Deep Groove Ball Bearings | 
| 7010 ADF | 50 | 80 | 32 | ISO | Angular Contact Ball Bearings | 
| 7334DBC3P5 | 170 | 360 | 144 | NTN | Angular Contact Ball Bearings | 
| BK455524 | 45 | 55 | 24 | ISO | Cylindrical Roller Bearings | 
| EST209+WB | 45 | SNR | Bearing Units | ||
| MR106 | 6 | 10 | 2,5 | FBJ | Deep Groove Ball Bearings | 
| NCF2207 V | 35 | 72 | 23 | CX | Cylindrical Roller Bearings | 
| P 20 TF | 20 | SKF | Bearing Units | ||
| SL15-918 | 90,000 | 125,000 | 68,000 | NTN | Cylindrical Roller Bearings | 
| MM9116K-CR | 80 | 125 | 22 | FAF | DEEP GROOVE BALL BEARINGS | 
| NUP218E | 90 | 160 | 30 | FAG | CYLINDRICAL ROLLER BEARINGS | 
| 61808T | 40 | 52 | 7 | FAG | DEEP GROOVE BALL BEARINGS | 
| 23096CA | 480 | 700 | 165 | SKF | SPHERICAL ROLLER BEARINGS | 
| SI25ES | 25 | 20 | FAG | ROD ENDS | |
| NC315 | 75 | 160 | 37 | RHP | CYLINDRICAL ROLLER BEARINGS | 
| 234776MSP/5 | 390 | 560 | CONSOLIDATED | ANGULAR CONTACT THRUST BALL BEARINGS | |
| N-340 | 200 | 420 | 80 | CONSOLIDATED | CYLINDRICAL ROLLER BEARINGS | 
Hot number:SKF 368A/362X/Q Ruville 5105 CRAFT 51110 ISB 61821-2RZ SKF 71938 ACD/HCP4AH1 AST AST40 3540 NACHI H-LM501349/H-LM501314 PFI GE40KRRB AST LBE 40 ISO NJ1038 AST SAJK6C SKF NJ2318 SKF RKS.062.20.0544 CONSOLIDATED NA-4960 CONSOLIDATED 4302-ZZ NSK 130TAC29X+L CX 30226 A NKE 30307 CX 6218-2RS ISO N207 CRAFT N220 SKF NJ 311 ECJ NACHI NUP 214 ISO NUP316 NKE QJ321-N2-MPA FAF 313K Barden 1804HC FAG BK3012 RHP MJT3/8 STEYR 2220
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