Bearing - 6203 Z ZKL

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€1,45 / pcs €1,20 excl. VAT

In stock (6 pcs)

Delivery to: 23. 7. 2026 Delivery options

Quantity discount

1 - 4 pcs

€1,45 / pcs

5 - 9 pcs = discount 3 %

€1,41 / pcs

10 - 24 pcs = discount 6 %

€1,36 / pcs

25 - 49 pcs = discount 9 %

€1,32 / pcs

50 and more pcs = discount 12 %

€1,28 / pcs

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17x40x12 mm
Metal shield on one side. ZKL single-row deep groove ball bearing for versatile rotating assemblies.

Detailed information

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Product detailed description

6203 Z ZKL is a single-row deep groove ball bearing with a metal shield on one side. The shield helps reduce the ingress of larger contaminants from the protected side and retain lubricant, while the opposite side of the bearing remains open.

Key features

Dimensions: 17 × 40 × 12 mm (bore × outside diameter × width)
Designation: 6203 Z
Manufacturer: ZKL
Design: single-row deep groove ball bearing
Shielding: metal shield on one side

Typical applications

The 6203 size is used in electric motors, fans, pumps, transmissions and other rotating mechanisms. The single-shielded version should be selected only where it matches the arrangement and the required orientation of the protected side.

Check before ordering

Compare the complete designation 6203 Z, the 17 × 40 × 12 mm dimensions and the single metal shield with the original bearing or technical documentation. Do not confuse it with an open or double-shielded version. If you are unsure about compatibility, send us the marking or a photo of the original part.

Additional parameters

Category:	Bearings
Inner diameter d (mm):	17
Outer diameter D (mm):	40
Width B (mm):	12

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In stock (1 pcs)

€1,12 excl. VAT

€1,36

17x35x10 mm

Single-row ZKL 6003-RS deep groove ball bearing with a rubber seal on one side. The sealed side helps protect the lubricant, while the opposite side remains open for the lubrication method defined by the bearing arrangement.

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Bearing - LR 203 NPPU INA

In stock (42 pcs)

€20,46 excl. VAT

€24,76

17x47x12 mm
INA LR 203 NPPU single-row yoke type track roller with a thick-walled outer ring and lip seals on both sides.
For running on tracks and primarily radial loads; the older NPPU designation is cross-referenced as 2RSR.

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Bearing - 6201 2RSR FAG

€2,02 excl. VAT

€2,44

12x32x10 mm

Single-row FAG 6201-2RSR deep groove ball bearing with seals on both sides and a sheet-steel cage. A versatile design for radial loads and axial loads in both directions.

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Bearing - NU 4905 DKF

In stock (3 pcs)

€13,63 excl. VAT

€16,49

25x42x17 mm
DKF NU 4905 single-row cylindrical roller bearing in NU design for high radial loads. The outer ring has two integral flanges and the inner ring has no flanges, allowing axial displacement of the shaft relative to the housing in both directions.

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Bearing - 61903 2RS ZVL

In stock (13 pcs)

€1,09 excl. VAT

€1,32

17x30x7 mm
Rubber seals on both sides. Thin-section ZVL single-row deep groove ball bearing for installations with limited radial space.

157

Bearing - 32307 CRB

In stock (1 pcs)

€8,50 excl. VAT

€10,29

35x80x32.75 mm
CRB 32307 single-row tapered roller bearing for high combined radial and axial loads. The separable inner-ring cone with rollers and outer-ring cup allow precise mounting and clearance or preload adjustment.

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Bearing - 629 2Z SKF

In stock (3 pcs)

€1,44 excl. VAT

€1,74

9x26x8 mm

SKF 629 2Z single-row deep-groove ball bearing with non-contact metal shields on both sides. A compact low-friction design for radial and limited axial loads in both directions.

629 2Z SKF

Bearing - 6906 2RS NTN

In stock (21 pcs)

€11,10 excl. VAT

€13,43

30x47x9 mm

Thin-section, single-row NTN 6906 2RS deep groove ball bearing with contact rubber seals on both sides, CN clearance and a pressed-steel cage. The compact design is intended for sealed arrangements with limited radial space.

6906 2RS NTN

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We can arrange delivery of almost any ZKL product, even if it is not currently listed in our catalogue.

Send us the designation, a photo of the nameplate, dimensions or a description of the application, and we will check availability.

ZKL – product identification and supply

The ZKL designation may appear on different technical products and spare parts. To identify the exact item reliably, we therefore work from the complete marking and the available technical data.

The exact item should be selected by its complete designation and technical parameters. Dimensions, design, material and operating conditions are important when matching a replacement.

For an accurate quotation, please provide the full marking, required quantity and any available documentation. We will compare the specification and verify a suitable delivery option.

Manufacturing company :	ZKL, a.s.
Address :	Jedovnická 2346/8, 628 00 Brno, Czech Republic
E-mail :	head@zkl.cz