NACHI
8
8 × 12 × 12 mm
Load C
5.7 kN
Speed
32,000
Weight
0.003 kg

The NACHI HK0812 is a miniature size needle roller bearings with ISO dimensions 8×12×12 mm. Bearings in the 8mm bore range are commonly used in automatic car transmissions, universal joints, industrial robots, sewing machines. This is an open type, requires periodic lubrication, suitable for clean environments variant. NACHI Japan — bearings and cutting tools, strong in machine tool applications — 3 equivalent brands available under ISO designation HK0812.

NACHINeedle Roller BearingsPre-Order 3–5 Days

NACHI HK0812

Needle Roller Bearings8×12×12 mm — ISO HK0812

Dimensions
Bore Diameter (d)8 mm
Outside Diameter (D)12 mm
Width (B)12 mm
Dynamic Load Rating (C)5.7 kN
Static Load Rating (C₀)5 kN
Limiting Speed (grease)32,000 rpm
Mass0.003 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0
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Technical Specifications

Full specifications for NACHI HK0812 per OEM catalog.

Bore Diameter (d)8 mm
Outside Diameter (D)12 mm
Width (B)12 mm
Dynamic Load Rating (C)5.7 kN
Static Load Rating (C₀)5 kN
Limiting Speed (grease)32,000 rpm
Mass0.003 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0

* Tolerances per ISO. Specifications per OEM catalog.

Cross-Reference — Equivalent Codes

Same ISO HK0812 — interchangeable dimensions.

BrandPart Number
NACHIHK0812
ikoHK0812
nskHK0812
ntnHK0812
skfHK0812

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

Compare HK0812 Across Brands

Same interchangeable dimensions — different load ratings and pricing.

BrandSKUd×D×BC (kN)C₀ (kN)
NACHIHK08128×12×125.75Current
IKOHK08128×12×125.8View
NSKHK08128×12×125.8View
NTNHK08128×12×125.8View
SKFHK08128×12×125.8View

FAQ — NACHI HK0812

Quick answers to common questions.

NACHI HK0812 có kích thước d×D×B = 8×12×12 mm theo tiêu chuẩn ISO. Đường kính trong d = 8 mm, đường kính ngoài D = 12 mm, chiều rộng B = 12 mm.

Common Applications

AutomotiveRobotics

Needle Roller Bearings with 8mm bore diameter are commonly used in automatic car transmissions, universal joints, industrial robots, sewing machines.

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NACHI HK0812
8×12×12 mm
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