NACHI
20
20 × 42 × 12 mm
Load C
9.3 kN
Speed
18,000
Weight
0.07 kg

The NACHI 6004 is a small size deep groove ball bearings with ISO dimensions 20×42×12 mm. Bearings in the 20mm bore range are commonly used in electric motors 0.37-5.5kW, water pumps, industrial fans, light conveyors (0.37-5.5kW range). This is an open type, requires periodic lubrication, suitable for clean environments variant. NACHI Japan — bearings and cutting tools, strong in machine tool applications — 6 equivalent brands available under ISO designation 6004.

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NACHI 6004

Deep Groove Ball Bearings20×42×12 mm — ISO 6004

Dimensions
Bore Diameter (d)20 mm
Outside Diameter (D)42 mm
Width (B)12 mm
Dynamic Load Rating (C)9.3 kN
Static Load Rating (C₀)5 kN
Limiting Speed (grease)18,000 rpm
Mass0.07 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0
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Technical Specifications

Full specifications for NACHI 6004 per OEM catalog.

Bore Diameter (d)20 mm
Outside Diameter (D)42 mm
Width (B)12 mm
Dynamic Load Rating (C)9.3 kN
Static Load Rating (C₀)5 kN
Limiting Speed (grease)18,000 rpm
Mass0.07 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0

* Tolerances per ISO. Specifications per OEM catalog.

Cross-Reference — Equivalent Codes

Same ISO 6004 — interchangeable dimensions.

BrandPart Number
NACHI6004
fag6004
nsk6004
ntn6004
skf6004
zvl6004
koyo6004
timken6004

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

Compare 6004 Across Brands

Same interchangeable dimensions — different load ratings and pricing.

BrandSKUd×D×BC (kN)C₀ (kN)
NACHI600420×42×129.35Current
NSK6004ZZ20×42×129.4View
FAG600420×42×129.5View
FAG6004-2RSR20×42×129.5View
FAG6004-2Z20×42×129.5View
Koyo600420×42×129.2View
Koyo60042RS20×42×129.2View
Koyo6004ZZ20×42×129.2View
NACHI60042NSLE20×42×129.3View

FAQ — NACHI 6004

Quick answers to common questions.

NACHI 6004 có kích thước d×D×B = 20×42×12 mm theo tiêu chuẩn ISO. Đường kính trong d = 20 mm, đường kính ngoài D = 42 mm, chiều rộng B = 12 mm.

Common Applications

ManufacturingHVAC

Deep Groove Ball Bearings with 20mm bore diameter are commonly used in electric motors 0.37-5.5kW, water pumps, industrial fans, light conveyors (0.37-5.5kW range).

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NACHI 6004
20×42×12 mm
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