NSK
50
50 × 95 × 31 mm
Load C
76.5 kN
Speed
2,200
Weight
0.7 kg

The NSK 51310 is a standard size thrust ball bearings with ISO dimensions 50×95×31 mm. Bearings in the 50mm 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. NSK Japan — precision bearing specialist, CNC spindles and high-speed bearings — 4 equivalent brands available under ISO designation 51310.

NSKThrust Ball BearingsPre-Order 3–5 Days

NSK 51310

Thrust Ball Bearings50×95×31 mm — ISO 51310

Dimensions
Bore Diameter (d)50 mm
Outside Diameter (D)95 mm
Width (B)31 mm
Dynamic Load Rating (C)76.5 kN
Static Load Rating (C₀)118 kN
Limiting Speed (grease)2,200 rpm
Mass0.7 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0
Genuine NSK2–4h delivery in cityFree technical support

Technical Specifications

Full specifications for NSK 51310 per OEM catalog.

Bore Diameter (d)50 mm
Outside Diameter (D)95 mm
Width (B)31 mm
Dynamic Load Rating (C)76.5 kN
Static Load Rating (C₀)118 kN
Limiting Speed (grease)2,200 rpm
Mass0.7 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0

* Tolerances per ISO. Specifications per OEM catalog.

Cross-Reference — Equivalent Codes

Same ISO 51310 — interchangeable dimensions.

BrandPart Number
NSK51310
fag51310
ntn51310
skf51310
zvl51310
nachi51310

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

Compare 51310 Across Brands

Same interchangeable dimensions — different load ratings and pricing.

BrandSKUd×D×BC (kN)C₀ (kN)
NSK5131050×95×3176.5118Current
FAG5131050×95×3178View
NACHI5131050×95×3175.7View
NTN5131050×95×3176.5View
SKF5131050×95×3176.5View
ZVL5131050×95×3176.5View

FAQ — NSK 51310

Quick answers to common questions.

NSK 51310 có kích thước d×D×B = 50×95×31 mm theo tiêu chuẩn ISO. Đường kính trong d = 50 mm, đường kính ngoài D = 95 mm, chiều rộng B = 31 mm.

Common Applications

ManufacturingEnergy

Thrust Ball Bearings with 50mm bore diameter are commonly used in vertical ball screws, large CNC rotary tables, heavy jacks, vertical pump shafts.

Need a Quote for NSK 51310?

Engineers ready for bearing selection, cross-reference, and same-day quotation.

NSK 51310
50×95×31 mm
Quote