Deep groove ball bearing 6904 – 20×37×9 mm
5 offers · 3 manufacturers · net prices from PLN 18.41 · dispatch in 2 working days
6904 is a deep groove ball bearing with a 20 mm bore, 37 mm outside diameter and 9 mm width, open design (no seals) – for externally lubricated arrangements. 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
- 20 mm
- outside D
- 37 mm
- width B
- 9 mm
- sealing
- open
- mass
- 0.04 kg
- net price from
- PLN 18.41
Brands and prices 6904
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 | |
|---|---|---|---|---|---|
| NTN | 6904 C3 | C3 | PLN 18.41PLN 22.64 gross | supplier stockdispatch in 2 working days | |
| NACHI | 6904 | CN | PLN 19.23PLN 23.65 gross | supplier stockdispatch in 2 working days | |
| NTN | 6904 | CN | PLN 21.01PLN 25.84 gross | supplier stockdispatch in 2 working days | |
| NACHI | 6904-2NSECMEC design, machined brass cage (SKF) | CN | PLN 21.88PLN 26.91 gross | supplier stockdispatch in 2 working days | |
| KOYO | 6904 | CN | PLN 27.43PLN 33.74 gross | supplier stockdispatch in 2 working days |
Can't see your brand? Ask for an offer – we reply within 24 h.
Other versions of 6904
The same size in another design – open, shielded, tapered bore.
How manufacturers designate 6904
Each brand uses its own seal and design codes. The designations below describe the same bearing.
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 6904 are identical for every manufacturer, so the items in the table are interchangeable – just match the clearance and sealing.
Questions about 6904
What are the dimensions of bearing 6904?
Bore 20 mm, outside diameter 37 mm, width 9 mm. Standardised dimensions – the same for every manufacturer.
Are 6904 bearings from different brands interchangeable?
Yes. 6904 C3 NTN, 6904 NACHI, 6904 KOYO are the same bearing under different manufacturers' designations. Match the clearance (e.g. C3) and the sealing.
How much does bearing 6904 cost?
At Castomer from PLN 18.41 to PLN 27.43 net per piece depending on the manufacturer (NTN, NACHI, KOYO). Prices are updated from supplier warehouses; larger quantities get an individual offer.
What is the delivery time for 6904?
Dispatch in 2 working days from supplier warehouses in the EU. Availability is confirmed in the reply to your enquiry.
