6000 Series Deep Groove Ball Bearings

The 6000 series covers 21 standard models from 6000 to 6020, with bore sizes from 10mm to 100mm, outer diameters from 26mm to 150mm, and widths from 8mm to 24mm. Full dimensions for every model are listed in the table above.

Open bearings have no seal and are typically used where the housing itself keeps out dust and moisture. ZZ has metal dust shields on both sides for basic protection at higher speeds. 2RZ uses a low-friction rubber seal, balancing protection and speed. 2RS uses a contact rubber seal for the best sealing against dust and moisture, at a slightly lower maximum speed than ZZ or 2RZ.

Maximum speed depends on bore size and lubrication method. Smaller bores (6000–6003) can run up to 20,000–34,000 r/min with grease lubrication, while larger bores (6018–6020) are rated for around 4,200–4,700 r/min. See the Grease and Oil columns in the table above for the exact rating of each model.

Yes. Alongside the 21 standard models, we accept custom specifications within the 6000 series — including non-standard bore sizes, tighter clearance classes and special grease fills. Send us your requirement and we'll confirm feasibility before quoting.

Every 6000 series bearing passes full-image inspection before it leaves our factory — not just a sample from the batch. Combined with our ISO 9001 certified quality management system, this ensures consistent dimensional accuracy and surface quality across every shipment.

Sample lead time is typically 10 days. As one of our core production lines, most 6000 series bore sizes are kept in stock or on a rolling production schedule, so there is no strict minimum order for trial orders. Bulk order lead time depends on quantity and seal type — contact us for a specific timeline.

ZZ has metal shields on both sides, giving lower friction and better performance in clean, high-speed conditions. 2RS has rubber contact seals on both sides, offering stronger protection against dust and moisture at a slightly lower maximum speed. This is the single most common question across our entire 6000 series — if you're unsure which to choose, tell us your operating environment and we'll recommend the right one.

Yes. Bearing numbering (6000, 6001, 6002, 6003, 6004, 6005, 6006, 6007, 6008, etc.) follows an international ISO standard, so our bearings share identical bore, outer diameter and width dimensions with the equivalent SKF, NSK, NTN, FAG or Koyo part numbers. Send us the brand and part number you're currently using and we'll confirm the direct equivalent.

C3 indicates a greater-than-standard internal clearance, commonly specified for high-speed applications or where operating temperature causes the shaft and housing to expand and reduce clearance during use. If your equipment runs hot or fast, C3 clearance is usually the right choice — ask us to confirm for your specific application.

Pricing depends on bore size, seal type, clearance class and order quantity. Smaller bores (6000–6005) are the most economical, with cost increasing for larger bores (6006–6020). Send us your bore size, seal preference and order volume for an exact quote — we typically respond within 24 hours.

6001 through 6008 cover the most common bore sizes (12mm–40mm) used in electric motors, pumps, power tools and household appliances, and make up the majority of our 6000 series orders — most available in open, ZZ or 2RS versions with same-week stock availability.