NTN
50
50 × 90 × 20 mm
Load C
39.7 kN
Speed
6,700
Weight
0.45 kg

The NTN 7210 is a standard size angular contact ball bearings with ISO dimensions 50×90×20 mm. Bearings in the 50mm bore range are commonly used in milling spindles, CNC lathes, vertical pumps, ball screws. This is an open type, requires periodic lubrication, suitable for clean environments variant. NTN Japan — Japanese technology, consistent quality, strong in automotive and machine tool bearings — 5 equivalent brands available under ISO designation 7210.

NTNAngular Contact Ball BearingsPre-Order 3–5 Days

NTN 7210

Angular Contact Ball Bearings50×90×20 mm — ISO 7210

Dimensions
Bore Diameter (d)50 mm
Outside Diameter (D)90 mm
Width (B)20 mm
Dynamic Load Rating (C)39.7 kN
Static Load Rating (C₀)24.5 kN
Limiting Speed (grease)6,700 rpm
Mass0.45 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0
Genuine NTN2–4h delivery in cityFree technical support

Technical Specifications

Full specifications for NTN 7210 per OEM catalog.

Bore Diameter (d)50 mm
Outside Diameter (D)90 mm
Width (B)20 mm
Dynamic Load Rating (C)39.7 kN
Static Load Rating (C₀)24.5 kN
Limiting Speed (grease)6,700 rpm
Mass0.45 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0

* Tolerances per ISO. Specifications per OEM catalog.

Cross-Reference — Equivalent Codes

Same ISO 7210 — interchangeable dimensions.

BrandPart Number
NTN7210
fag7210
nsk7210
skf7210
zvl7210
koyo7210
nachi7210

* C/C₀ may vary ±5% across manufacturers.

Compare 7210 Across Brands

Same interchangeable dimensions — different load ratings and pricing.

BrandSKUd×D×BC (kN)C₀ (kN)
NTN721050×90×2039.724.5Current
NACHI721050×90×2039.3View
FAG721050×90×2040.5View
Koyo721050×90×2038.9View
NSK721050×90×2039.7View
SKF721050×90×2039.7View
ZVL721050×90×2039.7View

FAQ — NTN 7210

Quick answers to common questions.

NTN 7210 có kích thước d×D×B = 50×90×20 mm theo tiêu chuẩn ISO. Đường kính trong d = 50 mm, đường kính ngoài D = 90 mm, chiều rộng B = 20 mm.

Common Applications

Machine toolsPumps

Angular Contact Ball Bearings with 50mm bore diameter are commonly used in milling spindles, CNC lathes, vertical pumps, ball screws.

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NTN 7210
50×90×20 mm
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