NTN
8
8 × 12 × 12 mm
Load C
5.8 kN
Speed
32,000
Weight
0.003 kg

The NTN 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. NTN Japan — Japanese technology, consistent quality, strong in automotive and machine tool bearings — 3 equivalent brands available under ISO designation HK0812.

NTNNeedle Roller BearingsPre-Order 3–5 Days

NTN 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)5.8 kN
Static Load Rating (C₀)5.1 kN
Limiting Speed (grease)32,000 rpm
Mass0.003 kg
Seal TypeOpen
ClearanceCN
Precision ClassP0
Genuine NTN2–4h delivery in cityFree technical support

Technical Specifications

Full specifications for NTN HK0812 per OEM catalog.

Bore Diameter (d)8 mm
Outside Diameter (D)12 mm
Width (B)12 mm
Dynamic Load Rating (C)5.8 kN
Static Load Rating (C₀)5.1 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
NTNHK0812
ikoHK0812
nskHK0812
skfHK0812
nachiHK0812

* 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)
NTNHK08128×12×125.85.1Current
IKOHK08128×12×125.8View
NACHIHK08128×12×125.7View
NSKHK08128×12×125.8View
SKFHK08128×12×125.8View

FAQ — NTN HK0812

Quick answers to common questions.

NTN 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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NTN HK0812
8×12×12 mm
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