NACHI
⌀20
20 × 52 × 16.25 mm
Load C
35.6 kN
Speed
9,000
Weight
0.13 kg

The NACHI 30304 is a small size tapered roller bearings with ISO dimensions 20×52×16.25 mm. Bearings in the 20mm bore range are commonly used in car wheel hubs, light truck gearboxes, forklift axles, differentials. This is an open type, requires periodic lubrication, suitable for clean environments variant. NACHI Japan — bearings and cutting tools, strong in machine tool applications — 5 equivalent brands available under ISO designation 30304.

NACHITapered Roller BearingsPre-Order 3–5 Days

NACHI 30304

Tapered Roller Bearings — 20×52×16.25 mm — ISO 30304

Dimensions
Bore Diameter (d)20 mm
Outside Diameter (D)52 mm
Width (B)16.25 mm
Dynamic Load Rating (C)35.6 kN
Static Load Rating (C₀)28.2 kN
Limiting Speed (grease)9,000 rpm
Mass0.13 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0
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Technical Specifications

Full specifications for NACHI 30304 per OEM catalog.

Bore Diameter (d)20 mm
Outside Diameter (D)52 mm
Width (B)16.25 mm
Dynamic Load Rating (C)35.6 kN
Static Load Rating (C₀)28.2 kN
Limiting Speed (grease)9,000 rpm
Mass0.13 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0

* Tolerances per ISO. Specifications per OEM catalog.

Cross-Reference — Equivalent Codes

Same ISO 30304 — interchangeable dimensions.

BrandPart Number
NACHI30304
fag30304
nsk30304
ntn30304
skf30304
koyo30304
timken30304

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

Compare 30304 Across Brands

Same interchangeable dimensions — different load ratings and pricing.

BrandSKUd×D×BC (kN)C₀ (kN)
NACHI3030420×52×16.2535.628.2Current
FAG3030420×52×16.2536.7—View
Koyo3030420×52×16.2535.3—View
ZVL3030420×52×16.2536—View
SKF3030420×52×16.2536—View
NTN3030420×52×16.2536—View
NSK3030420×52×16.2536—View
Timken3030420×52×16.2536.4—View

FAQ — NACHI 30304

Quick answers to common questions.

NACHI 30304 có kích thước d×D×B = 20×52×16.25 mm theo tiêu chuẩn ISO. Đường kính trong d = 20 mm, đường kính ngoài D = 52 mm, chiều rộng B = 16.25 mm.

Common Applications

AutomotiveForklifts

Tapered Roller Bearings with 20mm bore diameter are commonly used in car wheel hubs, light truck gearboxes, forklift axles, differentials.

Learn More

Tapered Roller Bearings: Construction, Pair Mounting & Clearance Adjustment

A tapered roller bearing uses conical rollers to handle heavy combined radial and axial loads through contact angles of 10°–30°. This guide covers cone/cup construction, O/X pair mounting, preload adjustment — sourced from Timken, SKF, ZVL catalogs and ISO 355.

Explore More

Type
All Tapered Roller Bearings
Brand
NACHI Bearings
Combined
NACHI
Catalog
15,800+ Products

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NACHI 30304
20×52×16.25 mm
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