Deep groove ball bearing 6203 K – 17×40×12 mm
2 offers · 2 manufacturers · net prices from PLN 13.67 · dispatch in 2 working days
6203 K is a deep groove ball bearing with a 17 mm bore, 40 mm outside diameter and 12 mm width, open design (no seals) – for externally lubricated arrangements with a tapered bore (K) for adapter sleeve mounting. The dimensions are standardised, so items from different manufacturers with the same clearance and sealing are interchangeable 1:1. All brands with current net prices are listed below.
- bore d
- 17 mm
- outside D
- 40 mm
- width B
- 12 mm
- sealing
- open
- mass
- 0.07 kg
- net price from
- PLN 13.67
Brands and prices 6203 K
Net price per piece, gross incl. 23% VAT. Selected items go into one enquiry – we reply within 24 h, with better prices for larger quantities.
| Brand | Manufacturer designation | Clearance | Net price | Availability | |
|---|---|---|---|---|---|
| INNE | 6203-2NKE9C3tapered bore, taper 1:12, reinforced design, higher load rating | CN | PLN 13.67PLN 16.81 gross | supplier stockdispatch in 2 working days | |
| NACHI | 6203-2NKE9CMtapered bore, taper 1:12, reinforced design, higher load rating, machined brass cage | CN | PLN 13.67PLN 16.81 gross | supplier stockdispatch in 2 working days |
Can't see your brand? Ask for an offer – we reply within 24 h.
Other versions of 6203
The same size in another design – open, shielded, tapered bore.
- 6203-2Z2Z – metal shields, both sides34 offers · from PLN 4.21 net
- 6203Open29 offers · from PLN 4.21 net
- 6203-2RS2RS – rubber contact seals, both sides23 offers · from PLN 3.24 net
- 6203-ZZ – metal shield, one side10 offers · from PLN 7.56 net
- 6203-2RZ2RZ – rubber non-contact seals, both sides9 offers · from PLN 9.88 net
- 6203-RSRS – rubber contact seal, one side7 offers · from PLN 8.53 net
- 6203-RZRZ – rubber non-contact seal, one side1 offer · from PLN 29.16 net
How manufacturers designate 6203 K
Each brand uses its own seal and design codes. The designations below describe the same bearing.
| Manufacturer | Designation | Sealing / design |
|---|---|---|
| INNE | 6203-2NKE9C3 | Open |
| NACHI | 6203-2NKE9CM | Open |
2RS, 2Z or C3 – which to choose?
2RS (two rubber seals) keeps dust and moisture out but limits speed. 2Z (metal shields) does not touch the ring, so it runs faster and cooler but protects less. 2RZ is the compromise – a non-contact seal.
Choose C3 clearance when the bearing runs hot (electric motors, fans) or with a tight shaft fit. Normal clearance CN is enough for ordinary applications.
The dimensions of 6203 K are identical for every manufacturer, so the items in the table are interchangeable – just match the clearance and sealing.
Questions about 6203 K
What are the dimensions of bearing 6203 K?
Bore 17 mm, outside diameter 40 mm, width 12 mm. Standardised dimensions – the same for every manufacturer.
Are 6203 K bearings from different brands interchangeable?
Yes. 6203-2NKE9C3 INNE, 6203-2NKE9CM NACHI are the same bearing under different manufacturers' designations. Match the clearance (e.g. C3) and the sealing.
How much does bearing 6203 K cost?
At Castomer from PLN 13.67 to PLN 13.67 net per piece depending on the manufacturer (INNE, NACHI). Prices are updated from supplier warehouses; larger quantities get an individual offer.
What is the delivery time for 6203 K?
Dispatch in 2 working days from supplier warehouses in the EU. Availability is confirmed in the reply to your enquiry.
