NACHI 6210 NR 50x90x20 Deep Groove Ball Bearing
1 pcs.
€12.18
(net)
Price for: 1pcs.
The NACHI 6210 NR 50x90x20 deep groove ball bearing with snap ring is an industrial staple, balancing simplicity and reliability. Stocked in Lublin — Magazyn i Sklep: Lublin, ul. Smoluchowskiego 1, budynek 4 — with 24h delivery both domestically and to many international destinations.
Contact us today for pricing, bulk orders, or guidance in selecting the correct variant for your application.
6210 NR NACHI 50x90x20 Deep Groove Ball Bearing
Application & Typical Uses
The NACHI 6210 NR bearing is a single-row deep groove ball bearing with inner diameter 50 mm, outer diameter 90 mm and width 20 mm, equipped with a snap ring groove (NR type). It is widely used across industrial machinery, electric motors, gearboxes, conveyors, pumps, and a variety of rotating equipment. The presence of the snap ring groove facilitates axial retention in housings or mounting slots, making it ideal for precision positioning in assemblies.
Thanks to its open (unsealed) design, this 6210 NR bearing is often chosen where external lubrication (grease or oil) is applied, or where minimal friction and heat dissipation are needed. It is also a common replacement part in global markets under queries like “6210 NR bearing”, “NACHI 6210 NR”, “deep groove ball bearing 50x90x20”, or “bearing snap ring groove 6210 NR”.
Advantages & Key Features
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Snap ring groove (NR) on the outer ring ensures reliable axial location and simplifies mounting.
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Open design (no seals) means lower friction, easier external lubrication, and enhanced cooling.
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High-quality bearing steel and precise finish deliver strong fatigue resistance and long service life.
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Versatility: handles radial loads and limited axial loads in both directions.
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Wide usability: suitable for industrial equipment, machine tools, drives, and more.
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Searching customers often refer to phrases such as “6210 NR open bearing”, “50x90x20 snap ring bearing”, or “6210 NR deep groove bearing”.
Technical Data & Specifications
| Parameter | Value |
|---|---|
| Bore (d) | 50 mm |
| Outer diameter (D) | 90 mm |
| Width (B) | 20 mm |
| Bearing type | Single-row deep groove ball bearing |
| Snap ring groove | Yes (NR) |
| Seal / Shield | None (open design) |
| Internal clearance | Standard (C0) |
| Dynamic load rating (Cr) | ~35,000 N (typical for 6210 NR class) |
| Static load rating (C0r) | ~23,200 N |
| Reference speed (grease) | ~7,700 rpm (approximate, depending on lubricant and conditions) |
| Operating temperature | Typical range -20 °C to +120 °C (depending on grease) |
| Typical weight | ~0.45 kg |
Note: The exact load and speed ratings may vary depending on the manufacturer and the finish/clearance variant (e.g. C3, precision classes). Always consult datasheet for your specific order.
FAQ - Frequently Asked Questions
Q: What does “NR” stand for in the designation 6210 NR?
A: “NR” indicates the presence of a snap ring groove on the outer ring. This groove allows insertion of a snap ring for axial fixation of the bearing in its housing.
Q: Is 6210 NR sealed or open type?
A: The standard 6210 NR is open (no seals) to allow for external lubrication. Variants with seals (e.g. 2RS, ZZ) exist, but those are not classified as NR-only.
Q: Can I operate this bearing at high speed?
A: Yes, within limits. The allowable speed depends on lubrication, clearance, temperature, and load. Under ideal conditions, typical reference speeds are in the thousands of RPM (e.g. ~7,700 rpm grease reference)
Q: What are equivalent bearings or alternatives?
A: Equivalent bearings from other brands (NSK, SKF, KOYO) with same dimensions 50x90x20 mm and snap ring groove (NR) can be considered. However, differences in internal fit, clearance, material or finish can affect performance.
Q: How should I lubricate an open bearing like 6210 NR?
A: Use high-quality bearing grease or oil, appropriate for your operating temperature and load. Grease should be replenished or relubricated per maintenance intervals. Clean lubrication is critical to long service life.
6210 NR NACHI
1 pcs.
Data sheet
- Diameter in. (mm)
- 50
- Diameter out. (mm)
- 90
- Height (mm)
- 20
- Mark
- NACHI
The NACHI 6210 NR 50x90x20 deep groove ball bearing with snap ring is an industrial staple, balancing simplicity and reliability. Stocked in Lublin — Magazyn i Sklep: Lublin, ul. Smoluchowskiego 1, budynek 4 — with 24h delivery both domestically and to many international destinations.
Contact us today for pricing, bulk orders, or guidance in selecting the correct variant for your application.