| Old No. | 638/4-ZZ | ![]() Two Shields ZZ | |
| Dimensions (metric) | d | 4 | |
| D | 9 | ||
| B | 4 | ||
| Approx. Wgt. lbs | .0030 | ||
| Interchange | ADR | 638/4ZZ | |
| ISC | 684ZZS | ||
| Nachi | 684ZZ | ||
| NMB | L-940ZZ | ||
| NTN | W684ZZA | ||
| RMB | ULZ409 | ||
| SKF | 638/4ZZ | ||
| 1) Also available with one shield - suffix “Z”. No change in width dimensions. | |||
| Model No. | Inner Diameter | Outer Diameter | Width | Brand | Type |
| 22336-E1 | 180 | 380 | 126 | FAG | Spherical Roller Bearings |
|---|---|---|---|---|---|
| 28BWD05ACA30 | 28 | 58 | 44 | NSK | Angular Contact Ball Bearings |
| 361202 R | 15 | 40 | 11 | SKF | Deep Groove Ball Bearings |
| 380RT30 | 380 | 528 | Timken | Cylindrical Roller Bearings | |
| 61909-2RS | 45 | 68 | 12 | CRAFT | Deep Groove Ball Bearings |
| 6212-2RS C3 | 60 | 110 | 22 | PFI | Deep Groove Ball Bearings |
| BKS20X28X20 | 20,000 | 28,000 | 20,000 | NTN | Needle Roller Bearings |
| IJ123060 | ILJIN | Angular Contact Ball Bearings | |||
| HKS8X12X9M | 8,000 | 12,000 | 9,000 | NTN | Needle Roller Bearings |
| NK19/16 | 19 | 27 | 16 | FBJ | Needle Roller Bearings |
| NN 3019 KTN9/SP | 95 | 145 | 37 | ISB | Cylindrical Roller Bearings |
| NNC4930 V | 150 | 210 | 60 | CX | Cylindrical Roller Bearings |
| NU 308 ECM | 90 | 40 | 23 | SKF | Thrust Ball Bearings |
| SYNT 60 LTS | 60 | 80 | 71 | SKF | Bearing Units |
| UKC205 | 20 | KOYO | Bearing Units | ||
| L10RA308 | 3.5000 | 4.1250 | .3125 | FAG | DEEP GROOVE BALL BEARINGS |
| ELn45 | 45 | 75 | 10 | RIV | DEEP GROOVE BALL BEARINGS |
| 7602015TVP | 15 | 35 | 11 | FAG | ANGULAR CONTACT BALL SCREW SUPPORT BEARINGS |
| 51315 | SNR | THRUST BALL BEARINGS | |||
| 0600-016-00 | 16 | 26 | 36 | STAR | LINEAR RECIRCULATING BALL BEARINGS |
Hot number:FAG 20213-K-TVP-C3 KOYO 24144RHAK30 NTN 2RE8404 Timken 4C/6 NTN 7005CDLLBG/GNP42 NTN 7021UCG/GNP42 CX 7034 A NTN FL697ZZ NBS NK 30/30 CX NUP19/600 NACHI UCPH210 FAG MB-52 SKF W61904-2RS1 SKF 52216 CONSOLIDATED TPFYT-40SD FAG 22313-E1-K + H2313 NACHI 24134AX CX 30209 A ISO 3309 ZZ AST 368/362 KOYO 46780R/46720 NACHI 6309-2NSE9 Ruville 6516 NTN 7306 NSK 80BER10XE SKF K 81128 TN KOYO KTC015 FAG NUP2332E FAG (Old No.) RNAF45x62x40 INA RT-751
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