Koyo
⌀25
25 × 62 × 18.25 mm
Load C
49.5 kN
Speed
7,500
Weight
0.22 kg

The Koyo 30305 is a small size tapered roller bearings with ISO dimensions 25×62×18.25 mm. Bearings in the 25mm 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 30305.

KoyoTapered Roller BearingsPre-Order 3–5 Days

Koyo 30305

Tapered Roller Bearings — 25×62×18.25 mm — ISO 30305

Dimensions
Bore Diameter (d)25 mm
Outside Diameter (D)62 mm
Width (B)18.25 mm
Dynamic Load Rating (C)49.5 kN
Static Load Rating (C₀)38.7 kN
Limiting Speed (grease)7,500 rpm
Mass0.22 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0
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Technical Specifications

Full specifications for Koyo 30305 per OEM catalog.

Bore Diameter (d)25 mm
Outside Diameter (D)62 mm
Width (B)18.25 mm
Dynamic Load Rating (C)49.5 kN
Static Load Rating (C₀)38.7 kN
Limiting Speed (grease)7,500 rpm
Mass0.22 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0

* Tolerances per ISO. Specifications per OEM catalog.

Cross-Reference — Equivalent Codes

Same ISO 30305 — interchangeable dimensions.

BrandPart Number
Koyo30305
fag30305
nsk30305
ntn30305
skf30305
nachi30305
timken30305

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

Compare 30305 Across Brands

Same interchangeable dimensions — different load ratings and pricing.

BrandSKUd×D×BC (kN)C₀ (kN)
Koyo3030525×62×18.2549.538.7Current
FAG3030525×62×18.2551.5—View
ZVL3030525×62×18.2550.5—View
SKF3030525×62×18.2550.5—View
NTN3030525×62×18.2550.5—View
NSK3030525×62×18.2550.5—View
Timken3030525×62×18.2551—View
NACHI3030525×62×18.2550—View

FAQ — Koyo 30305

Quick answers to common questions.

Koyo 30305 có kích thước d×D×B = 25×62×18.25 mm theo tiêu chuẩn ISO. Đường kính trong d = 25 mm, đường kính ngoài D = 62 mm, chiều rộng B = 18.25 mm.

Common Applications

AutomotiveForklifts

Tapered Roller Bearings with 25mm 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 30305
25×62×18.25 mm
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