Deep groove ball bearing 6921 – 105×145×20 mm
4 offers · 3 manufacturers · net prices from PLN 213.41 · dispatch in 2 working days
6921 is a deep groove ball bearing with a 105 mm bore, 145 mm outside diameter and 20 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
- 145 mm
- width B
- 20 mm
- sealing
- open
- net price from
- PLN 213.41
Brands and prices 6921
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 | |
|---|---|---|---|---|---|
| NACHI | 6921 | CN | PLN 213.41PLN 262.49 gross | supplier stockdispatch in 2 working days | |
| NACHI | 6921-2NSL | CN | PLN 277.40PLN 341.20 gross | supplier stockdispatch in 2 working days | |
| KOYO | 6921 | CN | PLN 357.70PLN 439.97 gross | supplier stockdispatch in 2 working days | |
| NSK | 6921 | CN | PLN 370.50PLN 455.72 gross | supplier stockdispatch in 2 working days |
Can't see your brand? Ask for an offer – we reply within 24 h.
Other versions of 6921
The same size in another design – open, shielded, tapered bore.
How manufacturers designate 6921
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 6921 are identical for every manufacturer, so the items in the table are interchangeable – just match the clearance and sealing.
Questions about 6921
What are the dimensions of bearing 6921?
Bore 105 mm, outside diameter 145 mm, width 20 mm. Standardised dimensions – the same for every manufacturer.
Are 6921 bearings from different brands interchangeable?
Yes. 6921 NACHI, 6921 KOYO, 6921 NSK are the same bearing under different manufacturers' designations. Match the clearance (e.g. C3) and the sealing.
How much does bearing 6921 cost?
At Castomer from PLN 213.41 to PLN 370.50 net per piece depending on the manufacturer (NACHI, KOYO, NSK). Prices are updated from supplier warehouses; larger quantities get an individual offer.
What is the delivery time for 6921?
Dispatch in 2 working days from supplier warehouses in the EU. Availability is confirmed in the reply to your enquiry.
