Deep groove ball bearing 4304 – 20×52×21 mm
3 offers · 3 manufacturers · net prices from PLN 95.74 · dispatch in 2 working days
4304 is a deep groove ball bearing with a 20 mm bore, 52 mm outside diameter and 21 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
- 52 mm
- width B
- 21 mm
- sealing
- open
- net price from
- PLN 95.74
Brands and prices 4304
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 | |
|---|---|---|---|---|---|
| FAG | 4304 BBTVH40° contact angle, solid polyamide cage (FAG) | CN | PLN 95.74PLN 117.76 gross | supplier stockdispatch in 2 working days | |
| SKF | 4304 ATN9glass-fibre reinforced PA66 cage (SKF) | CN | PLN 96.02PLN 118.10 gross | supplier stockdispatch in 2 working days | |
| NSK | 4304 | CN | PLN 175.50PLN 215.87 gross | supplier stockdispatch in 2 working days |
Can't see your brand? Ask for an offer – we reply within 24 h.
How manufacturers designate 4304
Each brand uses its own seal and design codes. The designations below describe the same bearing.
| Manufacturer | Designation | Sealing / design |
|---|---|---|
| FAG | 4304 BBTVH | Open |
| SKF | 4304 ATN9 | Open |
| NSK | 4304 | 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 4304 are identical for every manufacturer, so the items in the table are interchangeable – just match the clearance and sealing.
Questions about 4304
What are the dimensions of bearing 4304?
Bore 20 mm, outside diameter 52 mm, width 21 mm. Standardised dimensions – the same for every manufacturer.
Are 4304 bearings from different brands interchangeable?
Yes. 4304 BBTVH FAG, 4304 ATN9 SKF, 4304 NSK are the same bearing under different manufacturers' designations. Match the clearance (e.g. C3) and the sealing.
How much does bearing 4304 cost?
At Castomer from PLN 95.74 to PLN 175.50 net per piece depending on the manufacturer (FAG, SKF, NSK). Prices are updated from supplier warehouses; larger quantities get an individual offer.
What is the delivery time for 4304?
Dispatch in 2 working days from supplier warehouses in the EU. Availability is confirmed in the reply to your enquiry.
