The SKF 6300-2RSH/C3 is a single row deep groove ball bearing with a 10 mm bore, 35 mm outside diameter and 11 mm width, fitted with a contact rubber seal on both sides (2RSH) and C3 radial internal clearance. It belongs to the SKF Explorer performance class and, per SKF, carries a basic dynamic load rating of 8.52 kN and a basic static load rating of 3.4 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; 00 = bore code for 10 mm; 2RSH = contact seals on both sides; C3 = radial internal clearance greater than normal.
The contact seals rub lightly on the inner ring, which keeps grease in and dust, water and washdown spray out better than a shield. The price of that protection is speed: SKF lists a limiting speed of 15,000 r/min for this sealed version, against 26,000 r/min for the shielded 6300-2Z/C3.
Technical data
| SKF designation | 6300-2RSH/C3 |
|---|---|
| Bearing type | Single row deep groove ball bearing |
| Dimension series | 63 – ISO dimension series 03 (medium) |
| Bore diameter (d) | 10 مم |
| Outside diameter (D) | 35 mm |
| Width (B) | 11 mm |
| Basic dynamic load rating (C) | 8.52 kN |
| Basic static load rating (C0) | 3.4 kN |
| Limiting speed | 15,000 r/min |
| SKF performance class | SKF Explorer |
| Sealing | Seal on both sides (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 | 0.0529 kg |
| Condition | New, original SKF |
Typical applications
- Small motors, power tools and household appliances
- Idlers, pulleys and tensioners
- Pumps and mixers in damp or dusty plant rooms
- Textile, packaging and bottling machines
- Like-for-like replacement of a worn SKF 6300-2RSH/C3
Compatibility and replacement
Every 6300 bearing made to ISO 15 has the same 10 x 35 x 11 mm boundary dimensions, so this bearing fits wherever a 6300 with contact seals 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 6300-2Z/C3 is the same size.
Frequently asked questions
What is the difference between 6300-2RSH/C3 and 6300-2Z/C3?
Only the closures. The 6300-2Z has non-contact steel shields; the 2RSH version has contact rubber seals. Per SKF, the limiting speed is 26,000 r/min for 2Z and 15,000 r/min for 2RSH; the load ratings are the same. Choose shields for speed and low friction, seals for dirt and moisture.
Does the 6300-2RSH/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 0.0529 kg.
Which shaft and housing does it fit?
A 10 mm shaft seat and a 35 mm housing bore, with 11 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
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.
