| Symbol | Value | Description |
|---|---|---|
| ≈m | 0.248 kg | Weight |
| nG | 7000 rpm | Limiting speed |
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NTN
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NTN KR40 Stud Type Track Roller
Stud Type Track Roller
RFQ
Estimated delivery: 17 Jul 2026 (domestic stock)
In stockEstimated delivery: 17 Jul 2026 (domestic stock)
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
- Category
- Stud Type Track Roller
- Outer Ø
- 40 mm
- Width
- 21.5 mm
Overview
NTN KR40 Stud Type Track Roller is a cam follower with an integrated stud and bearing outer ring. It mounts without a separate shaft, saving space while supporting repeated loads in cams, guide rails, and automated handling equipment.
Needle or cylindrical rollers run inside a thick outer ring, while a threaded stud acts as the shaft. Options such as eccentric studs, seals, and lubrication holes improve adjustment and maintenance.
Key features
- Integrated stud for simple mounting
- Thick outer ring for cam and track contact
- Handles repeated shock loads
- Eccentric versions allow position adjustment
Typical applications
- Cam follower mechanisms
- Automated transfer rails
- Packaging and printing machines
- Lifts, doors, and guide systems
Selection guidance
Check stud diameter and thread, outer ring profile, eccentric adjustment need, load, speed, and lubrication.
| Symbol | Value | Description |
|---|---|---|
| D | 40 mm | Outside diameter |
| B | 21.5 mm | Width |
| Symbol | Value | Description |
|---|---|---|
| Tmin | -20 °C | Operating temperature min. |
| Tmax | 120 °C | Operating temperature max. |
| Code | Description |
|---|---|
| CN | Radial clearance group |
Excerpt from the manufacturer's official catalog — NTN CAT.2300 — 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:
NTNKR40NTN KR40
