NTN HK3012 Needle Roller Bearing 30 × 37 × 12 mm

Drawn Cup Needle Roller Bearings

Needle Roller Bearing

RFQ

Estimated delivery: 18 Jul 2026 (domestic stock)

In stockEstimated delivery: 18 Jul 2026 (domestic stock)

EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.

Category: Needle Roller Bearing
Bore: 30 mm
Outer Ø: 37 mm
Width: 12 mm

Overview

NTN HK3012 Needle Roller Bearing is a compact bearing designed to carry high radial load within a small cross-section. It is suitable for gearboxes, automotive transmissions, industrial links, and pivot positions where space saving and load capacity are both required.

Long, small-diameter rollers are arranged in a cage or full-complement design. Versions with or without inner rings are available, and shaft hardness and surface finish are critical when the shaft is used as the raceway.

Key features

High radial load capacity in limited radial space
Supports compact and lightweight designs
Available with or without inner ring
Suitable for heavily loaded gears and links

Typical applications

Automotive transmissions
Industrial gearboxes
Compressors and pumps
Links, pivots, and rocker arms

Selection guidance

Check mounting envelope, inner ring requirement, shaft surface hardness, lubrication, load, and speed range.

Symbol	Value	Description
d	30 mm	Bore diameter
D	37 mm	Outside diameter
B	12 mm	Width

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