Deep groove ball bearing 4308 – 40×90×33 mm
6 offers · 5 manufacturers · net prices from PLN 107.08 · dispatch in 2 working days
4308 is a deep groove ball bearing with a 40 mm bore, 90 mm outside diameter and 33 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
- 40 mm
- outside D
- 90 mm
- width B
- 33 mm
- sealing
- open
- mass
- 0.97 kg
- net price from
- PLN 107.08
Brands and prices 4308
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 | |
|---|---|---|---|---|---|
| NKE | 4308 BTVC340° contact angle, glass-fibre reinforced polyamide cage (FAG) | C3 | PLN 107.08PLN 131.71 gross | supplier stockdispatch in 2 working days | |
| NKE | 4308 BTV40° contact angle, glass-fibre reinforced polyamide cage (FAG) | CN | PLN 107.13PLN 131.77 gross | supplier stockdispatch in 2 working days | |
| KOYO | 4308 | CN | PLN 142.62PLN 175.42 gross | supplier stockdispatch in 2 working days | |
| FAG | 4308 BBTVH40° contact angle, solid polyamide cage (FAG) | CN | PLN 179.12PLN 220.32 gross | supplier stockdispatch in 2 working days | |
| SKF | 4308 ATN9glass-fibre reinforced PA66 cage (SKF) | CN | PLN 201.96PLN 248.41 gross | supplier stockdispatch in 2 working days | |
| NSK | 4308 | CN | PLN 273.89PLN 336.88 gross | supplier stockdispatch in 2 working days |
Can't see your brand? Ask for an offer – we reply within 24 h.
How manufacturers designate 4308
Each brand uses its own seal and design codes. The designations below describe the same bearing.
| Manufacturer | Designation | Sealing / design |
|---|---|---|
| NKE | 4308 BTVC3 | Open |
| KOYO | 4308 | Open |
| FAG | 4308 BBTVH | Open |
| SKF | 4308 ATN9 | Open |
| NSK | 4308 | 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 4308 are identical for every manufacturer, so the items in the table are interchangeable – just match the clearance and sealing.
Questions about 4308
What are the dimensions of bearing 4308?
Bore 40 mm, outside diameter 90 mm, width 33 mm. Standardised dimensions – the same for every manufacturer.
Are 4308 bearings from different brands interchangeable?
Yes. 4308 BTVC3 NKE, 4308 KOYO, 4308 BBTVH FAG, 4308 ATN9 SKF, 4308 NSK are the same bearing under different manufacturers' designations. Match the clearance (e.g. C3) and the sealing.
How much does bearing 4308 cost?
At Castomer from PLN 107.08 to PLN 273.89 net per piece depending on the manufacturer (NKE, KOYO, FAG, SKF, NSK). Prices are updated from supplier warehouses; larger quantities get an individual offer.
What is the delivery time for 4308?
Dispatch in 2 working days from supplier warehouses in the EU. Availability is confirmed in the reply to your enquiry.
