Castomer

Deep groove ball bearing 6304-Z – 20×52×15 mm

12 offers · 6 manufacturers · net prices from PLN 10.80 · dispatch in 2 working days

6304-Z is a deep groove ball bearing with a 20 mm bore, 52 mm outside diameter and 15 mm width, with one metal shield (Z). 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
15 mm
sealing
Z
mass
0.14 kg
net price from
PLN 10.80

Brands and prices 6304-Z

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.

BrandManufacturer designationClearanceNet priceAvailability
NACHI6304-ZECMEC design, machined brass cage (SKF)CN
PLN 10.80PLN 13.28 gross
supplier stockdispatch in 2 working days
NSK6304-ZC3C3
PLN 11.17PLN 13.74 gross
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FAG6304-C2ZC2
PLN 12.63PLN 15.53 gross
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FAG6304-C2ZC3C3
PLN 12.63PLN 15.53 gross
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NKE6304-ZC3C3
PLN 12.74PLN 15.67 gross
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NKE6304-ZCN
PLN 12.74PLN 15.67 gross
supplier stockdispatch in 2 working days
NSK6304-ZCN
PLN 13.39PLN 16.47 gross
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FAG6304-C-Z (-Z)CN
PLN 17.07PLN 21.00 gross
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FAG6304-C-Z-C3 (-Z-C3)C3
PLN 17.07PLN 21.00 gross
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SKF6304-ZCN
PLN 17.60PLN 21.65 gross
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SKF6304-ZC4C4
PLN 23.71PLN 29.16 gross
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SNR6304 FT150ZZCN
PLN 37.75PLN 46.43 gross
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Can't see your brand? Ask for an offer – we reply within 24 h.

Other versions of 6304

The same size in another design – open, shielded, tapered bore.

How manufacturers designate 6304-Z

Each brand uses its own seal and design codes. The designations below describe the same bearing.

ManufacturerDesignationSealing / design
FAG6304-C2ZZ – metal shield, one side
NSK6304-ZC3Z – metal shield, one side
NKE6304-ZC3Z – metal shield, one side
SKF6304-ZZ – metal shield, one side
NACHI6304-ZECMZ – metal shield, one side
SNR6304 FT150ZZZ – metal shield, one side

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 6304-Z are identical for every manufacturer, so the items in the table are interchangeable – just match the clearance and sealing.

Questions about 6304-Z

What are the dimensions of bearing 6304-Z?

Bore 20 mm, outside diameter 52 mm, width 15 mm. Standardised dimensions – the same for every manufacturer.

Are 6304-Z bearings from different brands interchangeable?

Yes. 6304-C2Z FAG, 6304-ZC3 NSK, 6304-ZC3 NKE, 6304-Z SKF, 6304-ZECM NACHI are the same bearing under different manufacturers' designations. Match the clearance (e.g. C3) and the sealing.

How much does bearing 6304-Z cost?

At Castomer from PLN 10.80 to PLN 37.75 net per piece depending on the manufacturer (FAG, NSK, NKE, SKF, NACHI, SNR). Prices are updated from supplier warehouses; larger quantities get an individual offer.

What is the delivery time for 6304-Z?

Dispatch in 2 working days from supplier warehouses in the EU. Availability is confirmed in the reply to your enquiry.

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