NACHI
45
45 × 85 × 28 mm
Load C
62.4 kN
Speed
2,600
Weight
0.52 kg

The NACHI 51309 is a standard size thrust ball bearings with ISO dimensions 45×85×28 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. NACHI Japan — bearings and cutting tools, strong in machine tool applications — 4 equivalent brands available under ISO designation 51309.

NACHIThrust Ball BearingsPre-Order 3–5 Days

NACHI 51309

Thrust Ball Bearings45×85×28 mm — ISO 51309

Dimensions
Bore Diameter (d)45 mm
Outside Diameter (D)85 mm
Width (B)28 mm
Dynamic Load Rating (C)62.4 kN
Static Load Rating (C₀)95 kN
Limiting Speed (grease)2,600 rpm
Mass0.52 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0
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Technical Specifications

Full specifications for NACHI 51309 per OEM catalog.

Bore Diameter (d)45 mm
Outside Diameter (D)85 mm
Width (B)28 mm
Dynamic Load Rating (C)62.4 kN
Static Load Rating (C₀)95 kN
Limiting Speed (grease)2,600 rpm
Mass0.52 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0

* Tolerances per ISO. Specifications per OEM catalog.

Cross-Reference — Equivalent Codes

Same ISO 51309 — interchangeable dimensions.

BrandPart Number
NACHI51309
fag51309
nsk51309
ntn51309
skf51309
zvl51309

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

Compare 51309 Across Brands

Same interchangeable dimensions — different load ratings and pricing.

BrandSKUd×D×BC (kN)C₀ (kN)
NACHI5130945×85×2862.495Current
FAG5130945×85×2864.3View
NSK5130945×85×2863View
NTN5130945×85×2863View
SKF5130945×85×2863View
ZVL5130945×85×2863View

FAQ — NACHI 51309

Quick answers to common questions.

NACHI 51309 có kích thước d×D×B = 45×85×28 mm theo tiêu chuẩn ISO. Đường kính trong d = 45 mm, đường kính ngoài D = 85 mm, chiều rộng B = 28 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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NACHI 51309
45×85×28 mm
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