NTN
45
45 × 100 × 39 mm
Load C
90 kN
Speed
2,200
Weight
0.98 kg

The NTN 51409 is a standard size thrust ball bearings with ISO dimensions 45×100×39 mm. Bearings in the 45mm bore range are commonly used in vertical ball screws, large CNC rotary tables, heavy jacks, vertical pump shafts. This is an open type, requires periodic lubrication, suitable for clean environments variant. NTN Japan — Japanese technology, consistent quality, strong in automotive and machine tool bearings — 4 equivalent brands available under ISO designation 51409.

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NTN 51409

Thrust Ball Bearings45×100×39 mm — ISO 51409

Dimensions
Bore Diameter (d)45 mm
Outside Diameter (D)100 mm
Width (B)39 mm
Dynamic Load Rating (C)90 kN
Static Load Rating (C₀)143 kN
Limiting Speed (grease)2,200 rpm
Mass0.98 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0
Genuine NTN2–4h delivery in cityFree technical support

Technical Specifications

Full specifications for NTN 51409 per OEM catalog.

Bore Diameter (d)45 mm
Outside Diameter (D)100 mm
Width (B)39 mm
Dynamic Load Rating (C)90 kN
Static Load Rating (C₀)143 kN
Limiting Speed (grease)2,200 rpm
Mass0.98 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0

* Tolerances per ISO. Specifications per OEM catalog.

Cross-Reference — Equivalent Codes

Same ISO 51409 — interchangeable dimensions.

BrandPart Number
NTN51409
fag51409
nsk51409
skf51409
zvl51409
nachi51409

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

Compare 51409 Across Brands

Same interchangeable dimensions — different load ratings and pricing.

BrandSKUd×D×BC (kN)C₀ (kN)
NTN5140945×100×3990143Current
FAG5140945×100×3991.8View
NACHI5140945×100×3989.1View
NSK5140945×100×3990View
SKF5140945×100×3990View
ZVL5140945×100×3990View

FAQ — NTN 51409

Quick answers to common questions.

NTN 51409 có kích thước d×D×B = 45×100×39 mm theo tiêu chuẩn ISO. Đường kính trong d = 45 mm, đường kính ngoài D = 100 mm, chiều rộng B = 39 mm.

Common Applications

ManufacturingEnergy

Thrust Ball Bearings with 45mm bore diameter are commonly used in vertical ball screws, large CNC rotary tables, heavy jacks, vertical pump shafts.

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NTN 51409
45×100×39 mm
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