The SKF 6210-2Z/C3 is a single row deep groove ball bearing with a 50 mm bore, 90 mm outside diameter and 20 mm width, fitted with a non-contact metal shield on both sides (2Z) and C3 radial internal clearance. It belongs to the SKF Explorer performance class and, per SKF, carries a basic dynamic load rating of 37.1 kN and a basic static load rating of 23.2 kN.
The designation can be read directly: 6 = single row deep groove ball bearing, 2 = ISO dimension series 02 (light), the most widely used series, balancing size and load capacity; 10 = bore code for 50 mm (10 x 5); 2Z = shields on both sides; C3 = radial internal clearance greater than normal.
Shields leave a narrow gap to the inner ring, so friction stays low and SKF lists a limiting speed of 8,000 r/min for this version, compared with 4,800 r/min for the sealed 6210-2RS1/C3. That makes the 2Z design the usual choice for electric motors, fans and other clean, fast-running positions.
Technical data
| SKF designation | 6210-2Z/C3 |
|---|---|
| Bearing type | Single row deep groove ball bearing |
| Dimension series | 62 – ISO dimension series 02 (light) |
| Bore diameter (d) | 50 mm |
| Outside diameter (D) | 90 mm |
| Width (B) | 20 mm |
| Basic dynamic load rating (C) | 37.1 kN |
| Basic static load rating (C0) | 23.2 kN |
| Reference speed | 15,000 r/min |
| Limiting speed | 8,000 r/min |
| SKF performance class | SKF Explorer |
| Sealing | Shield on both sides (non-contact) |
| Radial internal clearance | C3 (greater than normal) |
| Cage | Sheet metal (pressed steel) |
| Bore type | Cylindrical |
| Lubricant | Grease, no relubrication feature |
| Material | Bearing steel |
| Net weight | 0.467 kg |
| Condition | New, original SKF |
Typical applications
- General machinery shafts and housings
- Electric motors and generators (drive-end and non-drive-end positions)
- Compressors and vacuum pumps
- Centrifugal pumps and pump motors
- Like-for-like replacement of a worn SKF 6210-2Z/C3
Compatibility and replacement
Every 6210 bearing made to ISO 15 has the same 50 x 90 x 20 mm boundary dimensions, so this bearing fits wherever a 6210 with shields and C3 clearance from another maker was used. Suffixes differ between brands: shields are often marked ZZ or 2Z, contact seals 2RS, 2RS1, DDU or LLU, and the clearance C3 may appear as “C3” or “/C3”. Always match the sealing arrangement and the clearance class shown on the old bearing; if your machine needs the other closure, the 6210-2RS1/C3 is the same size.
Frequently asked questions
What is the difference between 6210-2Z/C3 and 6210-2RS1/C3?
Only the closures. The 6210-2Z has non-contact steel shields; the 2RS1 version has contact rubber seals. Per SKF, the limiting speed is 8,000 r/min for 2Z and 4,800 r/min for 2RS1; the load ratings are the same. Choose shields for speed and low friction, seals for dirt and moisture.
Does the 6210-2Z/C3 need greasing?
No. Per SKF it is supplied filled with grease and has no relubrication feature, so it is mounted as delivered and not washed out. Net weight per SKF is 0.467 kg.
Which shaft and housing does it fit?
A 50 mm shaft seat and a 90 mm housing bore, with 20 mm of axial space. The exact fit tolerances depend on the load and on which ring rotates, so follow the machine drawing or the old bearing seat.
Related parts
- SKF 6210-2RS1/C3 (sealed version)
- SKF 6209-2Z/C3 (45 mm bore)
- SKF 6211-2Z/C3 (55 mm bore)
- All SKF 6200 Series Bearings
Part of the SKF 6200 series stocked by RendatSP for electric motors, gearboxes, pumps, fans, conveyors and general industrial machinery, with fast shipping to Iraq, Saudi Arabia, UAE, Egypt, Yemen, Libya and across the Middle East and Africa.
Every part RendatSP supplies is new and original, carries a 1-year warranty and ships worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Send us the part number and quantity on WhatsApp or through the inquiry form and we will quote the same working day. Agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
