The SKF 6302-2Z/C3 is a single row deep groove ball bearing with a 15 mm bore, 42 mm outside diameter and 13 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 11.9 kN and a basic static load rating of 5.4 kN.
The designation can be read directly: 6 = single row deep groove ball bearing, 3 = ISO dimension series 03 (medium), a heavier cross-section with larger balls for higher loads on the same shaft size; 02 = bore code for 15 mm; 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 19,000 r/min for this version. That makes the 2Z design the usual choice for electric motors, fans and other clean, fast-running positions.
Technical data
| SKF designation | 6302-2Z/C3 |
|---|---|
| Bearing type | Single row deep groove ball bearing |
| Dimension series | 63 – ISO dimension series 03 (medium) |
| Bore diameter (d) | 15 mm |
| Outside diameter (D) | 42 mm |
| Width (B) | 13 mm |
| Basic dynamic load rating (C) | 11.9 kN |
| Basic static load rating (C0) | 5.4 kN |
| Reference speed | 38,000 r/min |
| Limiting speed | 19,000 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 | 0.084 kg |
| Condition | New, original SKF |
Typical applications
- Small motors, power tools and household appliances
- Machine-tool and woodworking spindles running at moderate speed
- Centrifugal pumps and pump motors
- Electric motors and generators (drive-end and non-drive-end positions)
- Like-for-like replacement of a worn SKF 6302-2Z/C3
Compatibility and replacement
Every 6302 bearing made to ISO 15 has the same 15 x 42 x 13 mm boundary dimensions, so this bearing fits wherever a 6302 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 6302-2RSH/C3 is the same size.
Frequently asked questions
What is the difference between 6302-2Z/C3 and 6302-2RSH/C3?
Only the closures. The 6302-2Z has non-contact steel shields; the 2RSH version has contact rubber seals. Choose shields for speed and low friction, seals for dirt and moisture.
Which shaft and housing does it fit?
A 15 mm shaft seat and a 42 mm housing bore, with 13 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.
Is it the same as a 6302ZZ or 6302-2RS from another brand?
Dimensionally yes: all 6302 bearings share 15 x 42 x 13 mm under ISO 15. A ZZ marking corresponds to this shielded design and 2RS to the sealed design; load ratings and speeds differ between makers, and the figures on this page are the SKF values.
Related parts
- SKF 6302-2RSH/C3 (sealed version)
- SKF 6301-2Z/C3 (12 mm bore)
- SKF 6303-2Z/C3 (17 mm bore)
- All SKF 6300 Series Bearings
Part of the SKF 6300 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.
