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Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
If you pulled a bearing off general industrial equipment at random, there’s a good chance
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1 in stock
Single-row cylindrical roller bearing, NU type, 40 x 80 x 18 mm, straight bore, non-locating with separable inner ring; NTN NU208-ZS, CN clearance.
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| MFR / Brand | NTN |
|---|---|
| MPN | NU208-ZS |
| Model | NU208Z S |
| Bearing Type | Cylindrical Roller Bearing, Open |
| ID | 40 mm |
| OD | 80 mm |
| Width | 18 mm |
| Series | NU200 |
|---|---|
| Material | Hardened Alloy Steel |
| Lubricant | Oil Preservative |
| Mpn Variants | NU208-ZS, NU208ZS, NU208Z S, NU-208 |
| Closure Type | Open |
| Rolling Elements | Cylindrical Roller |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Internal Clearance | CN |
| Industry Terms | cylindrical roller bearing; NU type roller bearing; separable inner ring roller bearing; non-locating roller bearing; 40x80x18 roller bearing |
| Common Misspellings | NTN NU 208 ZS; NTN NU208 ZS; NTN NU-208-ZS; NTN NU208Z |
| Application Types | Gearboxes; electric motors; pumps; industrial machinery shafts with floating end |
| Cross Reference 1 | SKF NU 208 ECP - E design, higher rating |
|---|---|
| Cross Reference 2 | FAG NU208-E-TVP2 - E design, higher rating |
| Cross Reference 3 | NSK NU208ET - E design, higher rating |
| Cross Reference 4 | Koyo NU208 |
NTN NU208-ZS is a single-row cylindrical roller bearing, NU design: plain inner ring without ribs, outer ring with two ribs holding the roller set. The inner ring separates from the outer ring and roller assembly. Bore Diameter: 40 mm. Outside Diameter: 80 mm. Overall Width: 18 mm. Unit Quantity: 1 Pc (complete bearing: inner ring, outer ring and roller assembly).
NU — plain inner ring, two ribs on the outer ring; non-locating, axial float between shaft and housing.
208 — 02 dimension series, bore code 08: 40 mm bore, 80 mm OD, 18 mm width.
Bore Diameter: 40 mm. Outside Diameter: 80 mm. Overall Width: 18 mm. Rolling Elements: Cylindrical Roller. Number Of Rows: 1. Bore Type: Straight. Closure Type: Open. Internal Clearance: CN. Series: NU200.
Inner Ring Raceway Diameter (Fw): 50 mm. Fillet Radius r min: 1.0 mm. Shaft Abutment Diameter da min: 46.5 mm. Housing Abutment Diameter Da max: 73.5 mm. Max Abutment Fillet ras: 1.0 mm. The NU layout carries radial load and no axial load.
Cross-references: SKF NU 208 ECP, FAG NU208-E-TVP2 and NSK NU208ET (E designs, 40 x 80 x 18 mm, higher load rating); Koyo NU208. Also written NU208ZS, NU208Z S and NU-208.
40 mm bore, 80 mm outside diameter, 18 mm width.
Yes: inner ring, outer ring and roller assembly. The inner ring separates from the outer ring and rollers.
No. NU is non-locating: it carries radial load and allows axial float.
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