Castomer

Deep groove ball bearing 6821 – 105×130×13 mm

4 offers · 3 manufacturers · net prices from PLN 224.37 · dispatch in 2 working days

6821 is a deep groove ball bearing with a 105 mm bore, 130 mm outside diameter and 13 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
105 mm
outside D
130 mm
width B
13 mm
sealing
open
net price from
PLN 224.37

Brands and prices 6821

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
NACHI6821-2NSLCN
PLN 224.37PLN 275.98 gross
supplier stockdispatch in 2 working days
NTN6821CN
PLN 237.60PLN 292.25 gross
supplier stockdispatch in 2 working days
NSK6821 C3C3
PLN 272.00PLN 334.56 gross
supplier stockdispatch in 2 working days
NSK6821CN
PLN 305.75PLN 376.07 gross
supplier stockdispatch in 2 working days

Can't see your brand? Ask for an offer – we reply within 24 h.

Other versions of 6821

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

How manufacturers designate 6821

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

ManufacturerDesignationSealing / design
NSK6821 C3Open
NACHI6821-2NSLOpen
NTN6821Open

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 6821 are identical for every manufacturer, so the items in the table are interchangeable – just match the clearance and sealing.

Questions about 6821

What are the dimensions of bearing 6821?

Bore 105 mm, outside diameter 130 mm, width 13 mm. Standardised dimensions – the same for every manufacturer.

Are 6821 bearings from different brands interchangeable?

Yes. 6821 C3 NSK, 6821-2NSL NACHI, 6821 NTN are the same bearing under different manufacturers' designations. Match the clearance (e.g. C3) and the sealing.

How much does bearing 6821 cost?

At Castomer from PLN 224.37 to PLN 305.75 net per piece depending on the manufacturer (NSK, NACHI, NTN). Prices are updated from supplier warehouses; larger quantities get an individual offer.

What is the delivery time for 6821?

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

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