Koyo
⌀17
17 × 47 × 15.25 mm
Load C
29.9 kN
Speed
10,000
Weight
0.1 kg

The Koyo 30303 is a small size tapered roller bearings with ISO dimensions 17×47×15.25 mm. Bearings in the 17mm 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. Koyo (JTEKT) Japan — OEM automotive bearings for Toyota, Honda, Japanese quality competitive pricing — 5 equivalent brands available under ISO designation 30303.

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Koyo 30303

Tapered Roller Bearings — 17×47×15.25 mm — ISO 30303

Dimensions
Bore Diameter (d)17 mm
Outside Diameter (D)47 mm
Width (B)15.25 mm
Dynamic Load Rating (C)29.9 kN
Static Load Rating (C₀)23.5 kN
Limiting Speed (grease)10,000 rpm
Mass0.1 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0
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Technical Specifications

Full specifications for Koyo 30303 per OEM catalog.

Bore Diameter (d)17 mm
Outside Diameter (D)47 mm
Width (B)15.25 mm
Dynamic Load Rating (C)29.9 kN
Static Load Rating (C₀)23.5 kN
Limiting Speed (grease)10,000 rpm
Mass0.1 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0

* Tolerances per ISO. Specifications per OEM catalog.

Cross-Reference — Equivalent Codes

Same ISO 30303 — interchangeable dimensions.

BrandPart Number
Koyo30303
fag30303
nsk30303
ntn30303
skf30303
nachi30303
timken30303

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

Compare 30303 Across Brands

Same interchangeable dimensions — different load ratings and pricing.

BrandSKUd×D×BC (kN)C₀ (kN)
Koyo3030317×47×15.2529.923.5Current
FAG3030317×47×15.2531.1—View
NSK3030317×47×15.2530.5—View
ZVL3030317×47×15.2530.5—View
SKF3030317×47×15.2530.5—View
NTN3030317×47×15.2530.5—View
Timken3030317×47×15.2530.8—View
NACHI3030317×47×15.2530.2—View

FAQ — Koyo 30303

Quick answers to common questions.

Koyo 30303 có kích thước d×D×B = 17×47×15.25 mm theo tiêu chuẩn ISO. Đường kính trong d = 17 mm, đường kính ngoài D = 47 mm, chiều rộng B = 15.25 mm.

Common Applications

AutomotiveForklifts

Tapered Roller Bearings with 17mm 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
Koyo Bearings
Combined
Koyo
Catalog
15,800+ Products

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Koyo 30303
17×47×15.25 mm
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