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Deep Groove Ball Bearing Selection Guide (6000 / 6200 / 6300 Series)
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Looking for a practical way to choose deep groove ball bearings for motors, pumps, and industrial machinery? This guide walks through the 6000, 6200, and 6300 series so you can match bore size, load needs, and seal type with fewer trial-and-error samples.
Why series choice matters
Deep groove ball bearings (DGBB) are the most widely used bearing type in general industry. The series number signals relative cross-section and load capacity for a given bore:
- 6000 — Lighter section, compact — Small motors, appliances, light conveyors
- 6200 — Balanced capacity and size — General motors, pumps, gearboxes
- 6300 — Heavier section, higher load — Larger motors, agricultural and industrial drives
If housing space is tight, start with 6000/6200. If radial load or shock is higher, evaluate 6300 before upsizing the whole assembly.
How to read a typical model
Example: 6205-2RS C3
- 62 — series (6200)
- 05 — bore code (05 → 25 mm bore)
- 2RS — contact rubber seals on both sides
- C3 — internal clearance larger than normal (CN/C0)
Always confirm: bore (d) × OD (D) × width (B), precision, clearance, seal/shield, and cage.
Seal and shield options
- Open — Lowest protection — Highest speed potential — Clean / oil-bath / frequent relube
- ZZ (2Z) — Dust shields — Lower torque than contact seals — Moderately clean industry
- 2RS — Better grease retention and contaminant resistance — Slightly higher friction — Dusty / outdoor-adjacent
Clearance
CN/C0 for many general uses; C3 when speed, thermal growth, or press-fit needs extra room—confirm against your duty cycle.
OEM and distributor checklist
- Confirm shaft/housing dimensions
- Check load, speed, dynamic rating, limiting speed
- Pick seal for contamination and relube plan
- Set precision and clearance for noise/fit/temperature
- Align export packing and marking for reorders
- Ask for batch consistency / inspection notes
Applications
Motors (6200/6300, ZZ/2RS); pumps (sealed options); conveyors and gearboxes (stable accuracy + repeatable supply).
FAQ
Q1. Is 6205 interchangeable with 6305? No—same bore code does not mean same OD/width/load.
Q2. 2RS vs ZZ? Choose 2RS when grease retention and contaminants matter more than minimum friction.
Q3. Need P6 always? No; many general motors use P0; tighten when noise/vibration targets are strict.
Q4. One model for every market? Stock a core grid (e.g. 6200–6210, Open/ZZ/2RS, CN/C3), expand by BOM.
Q5. What to send for quick confirmation? Model list, quantity band, seal/clearance, destination, lead-time window—no public price needed.
Next step
Share your 6000/6200/6300 models and operating conditions; we can help confirm dimensions, seal, and clearance for OEM or wholesale—use the inquiry form on this site.
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