NACHI
55
55 × 105 × 35 mm
Load C
89.1 kN
Speed
2,000
Weight
0.95 kg

The NACHI 51311 is a standard size thrust ball bearings with ISO dimensions 55×105×35 mm. Bearings in the 55mm 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 51311.

NACHIThrust Ball BearingsPre-Order 3–5 Days

NACHI 51311

Thrust Ball Bearings55×105×35 mm — ISO 51311

Dimensions
Bore Diameter (d)55 mm
Outside Diameter (D)105 mm
Width (B)35 mm
Dynamic Load Rating (C)89.1 kN
Static Load Rating (C₀)138.6 kN
Limiting Speed (grease)2,000 rpm
Mass0.95 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0
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Technical Specifications

Full specifications for NACHI 51311 per OEM catalog.

Bore Diameter (d)55 mm
Outside Diameter (D)105 mm
Width (B)35 mm
Dynamic Load Rating (C)89.1 kN
Static Load Rating (C₀)138.6 kN
Limiting Speed (grease)2,000 rpm
Mass0.95 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0

* Tolerances per ISO. Specifications per OEM catalog.

Cross-Reference — Equivalent Codes

Same ISO 51311 — interchangeable dimensions.

BrandPart Number
NACHI51311
fag51311
nsk51311
ntn51311
skf51311
zvl51311

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

Compare 51311 Across Brands

Same interchangeable dimensions — different load ratings and pricing.

BrandSKUd×D×BC (kN)C₀ (kN)
NACHI5131155×105×3589.1138.6Current
FAG5131155×105×3591.8View
NSK5131155×105×3590View
NTN5131155×105×3590View
SKF5131155×105×3590View
ZVL5131155×105×3590View

FAQ — NACHI 51311

Quick answers to common questions.

NACHI 51311 có kích thước d×D×B = 55×105×35 mm theo tiêu chuẩn ISO. Đường kính trong d = 55 mm, đường kính ngoài D = 105 mm, chiều rộng B = 35 mm.

Common Applications

ManufacturingEnergy

Thrust Ball Bearings with 55mm bore diameter are commonly used in vertical ball screws, large CNC rotary tables, heavy jacks, vertical pump shafts.

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NACHI 51311
55×105×35 mm
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