Bearing - NU 4905 DKF
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Bearing - NU 4905 DKF
NU 4905 DKF is a single-row cylindrical roller bearing in NU design. Line contact between the rollers and raceways provides high radial load capacity. The NU arrangement is used as a non-locating bearing that accommodates changes in shaft length relative to the housing.
Technical data
- Designation: NU 4905 DKF
- Type: single-row cylindrical roller bearing, NU design
- Dimensions d × D × B: 25 × 42 × 17 mm
- Outer ring: two integral guide flanges
- Inner ring: no flanges
- Axial function: permits shaft displacement relative to the housing in both directions
- Construction: separable and open
- Manufacturer: DKF
Features and applications
The bearing is intended primarily for radial loads. Axial displacement takes place inside the bearing, making the NU design suitable where thermal expansion of the shaft must be accommodated, for example in electric motors, gearboxes and industrial machinery. A separate, correctly selected locating bearing is required to guide the shaft axially.
Mounting and interchange check
The separable design simplifies independent mounting of the rings and inspection of the arrangement. Before ordering, compare the full NU 4905 designation, 25 × 42 × 17 mm dimensions and flange arrangement with the original bearing or machine documentation; do not confuse it with the similarly designated NA 4905 needle roller bearing.
Additional parameters
| Category: | Single row cylindrical roller bearingsBearings 25 × 42 × 17 mm |
|---|---|
| Weight: | 0.088 kg |
| Inner diameter d (mm): | 25 |
| Outer diameter D (mm): | 42 |
| Width (mm): | 17 |
Product rating
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We can source almost any DKF product, even if you cannot find it in our online shop.
Send us the product designation and quantity required. We will check the price, availability and delivery options.
Enquire about DKF productsDKF – Product range and selection
We can help identify the required version of a DKF product from the complete designation and available documentation.
Examples from our catalogue
- 6209 K 2RS C3 DKF
- 16015 DKF
- NU 2311 DKF
What to include in your enquiry
- The full product designation, including all suffixes and specifications.
- The quantity required and, if relevant, when you need the part.
- Nameplate details, dimensions or a description of the application if the designation is unknown.
You can email a photo or drawing to info@Loziska-Policka.cz.
Your enquiry is non-binding. We will confirm the price, availability and delivery time for the specific product and discuss any alternative with you first.
Looking for a DKF bearing replacement? Start with the full marking and the bearing's construction, then compare its dimensions and the requirements of the machine.
Keep the original marking complete
A basic reference such as 626 or 1203 identifies a different product; a matching bore alone does not establish a suitable replacement. Include every suffix shown on the bearing or packaging. If you need another brand, the technical specification must be checked before a substitute is confirmed.
Products in this range
Request a DKF quotation · Bearings by designation and dimensions
Please specify the quantity required. Availability and any replacement will be confirmed for the exact item.
| Manufacturing company : | DKF Deutsche Kugellagerfabriken GmbH |
|---|---|
| Address : | Rosenthaler Straße 40/41, 10178 Berlin, Germany |
| E-mail : | mail@dkf-group.de |