Deep groove ball bearing 6904-2RS – 20×37×9 mm
6 offers · 3 manufacturers · net prices from PLN 30.19 · dispatch in 2 working days
6904-2RS is a deep groove ball bearing with a 20 mm bore, 37 mm outside diameter and 9 mm width, with two rubber contact seals (2RS) – greased for life, maintenance-free. 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
- 2RS
- mass
- 0.04 kg
- net price from
- PLN 30.19
Brands and prices 6904-2RS
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 | |
|---|---|---|---|---|---|
| KOYO | 6904 2RS | CN | PLN 30.19PLN 37.13 gross | supplier stockdispatch in 2 working days | |
| KOYO | 6904-2RSC3 | C3 | PLN 30.19PLN 37.13 gross | supplier stockdispatch in 2 working days | |
| NSK | 6904-DDUC3 | C3 | PLN 30.99PLN 38.12 gross | supplier stockdispatch in 2 working days | |
| NTN | 6904-LLUC35K | C3 | PLN 31.92PLN 39.26 gross | supplier stockdispatch in 2 working days | |
| NSK | 6904 DDU | CN | PLN 34.83PLN 42.84 gross | supplier stockdispatch in 2 working days |
▸Special designs 6904-2RS (1) – stainless steel, snap ring, manufacturer specials
| NTN | 6904-LLUNR2ASsnap ring groove with snap ring | CN | PLN 40.93PLN 50.34 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 6904-2RS
Each brand uses its own seal and design codes. The designations below describe the same bearing.
| Manufacturer | Designation | Sealing / design |
|---|---|---|
| KOYO | 6904 2RS | 2RS – rubber contact seals, both sides |
| NSK | 6904-DDUC3 | 2RS – rubber contact seals, both sides |
| NTN | 6904-LLUC35K | 2RS – rubber contact seals, both sides |
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 6904-2RS are identical for every manufacturer, so the items in the table are interchangeable – just match the clearance and sealing.
Questions about 6904-2RS
What are the dimensions of bearing 6904-2RS?
Bore 20 mm, outside diameter 37 mm, width 9 mm. Standardised dimensions – the same for every manufacturer.
Are 6904-2RS bearings from different brands interchangeable?
Yes. 6904 2RS KOYO, 6904-DDUC3 NSK, 6904-LLUC35K NTN are the same bearing under different manufacturers' designations. Match the clearance (e.g. C3) and the sealing.
How much does bearing 6904-2RS cost?
At Castomer from PLN 30.19 to PLN 34.83 net per piece depending on the manufacturer (KOYO, NSK, NTN). Prices are updated from supplier warehouses; larger quantities get an individual offer.
What is the delivery time for 6904-2RS?
Dispatch in 2 working days from supplier warehouses in the EU. Availability is confirmed in the reply to your enquiry.
