| Symbol | Value | Description |
|---|---|---|
| ≈m | 0.061 kg | Weight |
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NTN
NTN
NTN HMK3020 Needle Roller Bearing 30 × 40 × 20 mm
Drawn cup roller b.
Needle Roller Bearing
RFQ
In stock
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
- Category
- Needle Roller Bearing
- Bore
- 30 mm
- Outer Ø
- 40 mm
- Width
- 20 mm
Overview
NTN HMK3020 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 | 40 mm | Outside diameter |
| B | 20 mm | Width |
| H | Without lubrication groove | Lubrication hole diameter |
| Code | Description |
|---|---|
| Tapered bore 1:30 (K30) | Bore type |
| Sheet steel cage | Cage |
Excerpt from the manufacturer's official catalog — NTN CAT.2203E — Needle Roller Bearings
Also searched as
The same part number can be written with or without separators, or in progressive prefix form. We index these common variants so your search reaches this page:
NTNHMK3020NTN HMK3020
