Castomer

Deep groove ball bearing 61904 – 20×37×9 mm

5 offers · 3 manufacturers · net prices from PLN 20.63 · dispatch in 2 working days

61904 is a deep groove ball bearing with a 20 mm bore, 37 mm outside diameter and 9 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
20 mm
outside D
37 mm
width B
9 mm
sealing
open
mass
0.04 kg
net price from
PLN 20.63

Brands and prices 61904

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
NKE61904CN
PLN 20.63PLN 25.37 gross
supplier stockdispatch in 2 working days
NKE61904 C3C3
PLN 20.63PLN 25.37 gross
supplier stockdispatch in 2 working days
FAG61904CN
PLN 25.93PLN 31.89 gross
supplier stockdispatch in 2 working days
SKF61904CN
PLN 26.30PLN 32.35 gross
supplier stockdispatch in 2 working days
SKF61904 C3C3
PLN 36.28PLN 44.62 gross
supplier stockdispatch in 2 working days

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

Other versions of 61904

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

How manufacturers designate 61904

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

ManufacturerDesignationSealing / design
NKE61904Open
SKF61904Open
FAG61904Open

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 61904 are identical for every manufacturer, so the items in the table are interchangeable – just match the clearance and sealing.

Questions about 61904

What are the dimensions of bearing 61904?

Bore 20 mm, outside diameter 37 mm, width 9 mm. Standardised dimensions – the same for every manufacturer.

Are 61904 bearings from different brands interchangeable?

Yes. 61904 NKE, 61904 SKF, 61904 FAG are the same bearing under different manufacturers' designations. Match the clearance (e.g. C3) and the sealing.

How much does bearing 61904 cost?

At Castomer from PLN 20.63 to PLN 36.28 net per piece depending on the manufacturer (NKE, SKF, FAG). Prices are updated from supplier warehouses; larger quantities get an individual offer.

What is the delivery time for 61904?

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

© 2026 Castomer sp. z o.o. All rights reserved.