Deep groove ball bearing SF684-2Z – 4×9×4 mm
2 offers · 2 manufacturers · net prices from PLN 7.88 · dispatch in 2 working days
SF684-2Z is a deep groove ball bearing with a 4 mm bore, 9 mm outside diameter and 4 mm width, with two metal shields (2Z) – non-contact, for higher speeds. 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
- 4 mm
- outside D
- 9 mm
- width B
- 4 mm
- sealing
- 2Z
- net price from
- PLN 7.88
Brands and prices SF684-2Z
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.
Can't see your brand? Ask for an offer – we reply within 24 h.
How manufacturers designate SF684-2Z
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 SF684-2Z are identical for every manufacturer, so the items in the table are interchangeable – just match the clearance and sealing.
Questions about SF684-2Z
What are the dimensions of bearing SF684-2Z?
Bore 4 mm, outside diameter 9 mm, width 4 mm. Standardised dimensions – the same for every manufacturer.
Are SF684-2Z bearings from different brands interchangeable?
Yes. SF684-2Z ZEN, SF684-2Z FAG are the same bearing under different manufacturers' designations. Match the clearance (e.g. C3) and the sealing.
How much does bearing SF684-2Z cost?
At Castomer from PLN 7.88 to PLN 26.30 net per piece depending on the manufacturer (ZEN, FAG). Prices are updated from supplier warehouses; larger quantities get an individual offer.
What is the delivery time for SF684-2Z?
Dispatch in 2 working days from supplier warehouses in the EU. Availability is confirmed in the reply to your enquiry.
