Koyo
20
20 × 42 × 12 mm
Load C
9.2 kN
Speed
18,000
Weight
0.07 kg

The Koyo 6004ZZ 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 double shielded (ZZ), effective dust prevention while allowing grease replenishment variant. Koyo (JTEKT) Japan — OEM automotive bearings for Toyota, Honda, Japanese quality competitive pricing — 6 equivalent brands available under ISO designation 6004.

KoyoDeep Groove Ball BearingsPre-Order 3–5 Days

Koyo 6004ZZ

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)9.2 kN
Static Load Rating (C₀)4.9 kN
Limiting Speed (grease)18,000 rpm
Mass0.07 kg
Seal TypeDouble Shielded
ClearanceCN
Precision ClassP0
Genuine Koyo2–4h delivery in cityFree technical support

Technical Specifications

Full specifications for Koyo 6004ZZ per OEM catalog.

Bore Diameter (d)20 mm
Outside Diameter (D)42 mm
Width (B)12 mm
Dynamic Load Rating (C)9.2 kN
Static Load Rating (C₀)4.9 kN
Limiting Speed (grease)18,000 rpm
Mass0.07 kg
Seal TypeDouble Shielded
ClearanceCN
Precision ClassP0

* Tolerances per ISO. Specifications per OEM catalog.

Cross-Reference — Equivalent Codes

Same ISO 6004 — interchangeable dimensions.

BrandPart Number
Koyo6004ZZ
fag6004-2Z
nsk6004ZZ
ntn6004ZZ
skf6004-2Z
zvl6004-2ZR
nachi6004ZZE
timken6004-2Z

* 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)
Koyo6004ZZ20×42×129.24.9Current
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
NACHI600420×42×129.3View
NACHI60042NSLE20×42×129.3View

FAQ — Koyo 6004ZZ

Quick answers to common questions.

Koyo 6004ZZ 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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Koyo 6004ZZ
20×42×12 mm
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