Shaft Seal 10x15x3 ZBL NBR (Single-Lip, Metal Case, No Spring)

Technical Data & Construction

The shaft seal 10x15x3 mm ZBL NBR is a precision-engineered rotary shaft seal ideal for compact industrial assemblies. The designation ZBL indicates a single-lip oil seal without garter spring, housed in a robust metal case. Constructed from NBR (nitrile-butadiene rubber), the sealing lip offers excellent resistance to oils, greases and typical industrial lubricants, while maintaining high durability under moderate temperature and load conditions. With a 10 mm inner diameter, 15 mm outer diameter, and only 3 mm width, this oil seal is designed for tight-space applications where reliable sealing and minimized friction are key. The metal case ensures stable installation into the housing, while the single-lip design enables efficient sealing with lower drag compared to more complex double-lip versions.

Applications & Key Benefits

In industrial and automotive sectors, the shaft sealing ring 10x15x3 ZBL NBR performs strong in gearboxes, motors, pumps, reducers and automation drives where a single-lip oil seal suffices and contaminants are moderate. Common search phrases include “shaft seal 10x15x3 NBR”, “single lip oil seal no spring”, “metal case shaft seal 10x15x3”. The compact width supports installation in restricted spaces, while the NBR compound and metal case deliver high durability, resistance to oils and grease, and low maintenance. For engineers and B2B buyers focused on reliability and cost-efficiency, this technical seal offers a sound solution for standard sealing tasks and maintenance supply kits.

Installation, Operation & Maintenance Tips

To ensure optimal performance, install the seal into a clean bore and over a smooth shaft with proper lead-in chamfer. Press the metal case evenly into the housing to avoid distortion of the lip. The single-lip, spring-free design (ZBL) is ideally suited for conditions with moderate shaft speed and minimal abrasives; however, for highly contaminated or high-pressure applications, a double-lip oil seal with dust lip may be more appropriate. When using the NBR variant, ensure the sealing environment comprises compatible oils and greases—avoid aggressive solvents or fuels beyond the material’s capability. Although lubrication is generally built-in, coating the lip lightly before installation will help reduce friction during the initial run-in phase. Routine inspection of the shaft surface and seal condition contributes substantially to extended service life and reduced unplanned downtime.

FAQ - Frequently Asked Questions

Q1: What is the difference between a single-lip and double-lip oil seal?
A1: A single-lip oil seal (such as the ZBL type) has a single elastomeric sealing lip without garter spring, designed for simpler sealing tasks. A double-lip oil seal adds a secondary dust lip or garter spring for increased protection against contaminants, higher pressures or more demanding industrial applications.

Q2: Why choose the ZBL single-lip design with no spring?
A2: The absence of a spring simplifies the design, reduces drag and axial space, and offers a cost-effective seal where the contaminant load and shaft speed are moderate. It’s ideal for standard industrial and automotive drives with moderate conditions.

Q3: What material is used and what are its advantages?
A3: The sealing lip is made from NBR (nitrile-butadiene rubber), offering excellent resistance to oils and grease, good abrasion longevity and stable performance in industrial environments with typical lubricant mediums.

Q4: How to correctly size this shaft seal?
A4: Match the seal’s inner diameter (10 mm) to the shaft diameter, the outer diameter (15 mm) to the housing bore for press-fit, and ensure width (3 mm) fits the axial space available. Check tolerances of bore and shaft and follow proper installation practices.

Q5: Is this product available for fast delivery?
A5: 📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24h Delivery - fast order processing for industrial B2B customers