Logo

Home > Standard Threaded Steel Grease Nipple Zerk Fittings

Standard Threaded Steel Grease Nipple Zerk Fittings 默认显示第一张 -->

Standard Threaded Steel Grease Nipple Zerk Fittings

The humble Grease Nipple (commonly known as a Zerk fitting) is the most ubiquitous lubrication component in the world. It serves as the primary gateway for forcing grease into a mechanical joint. Screwed directly into bearing housings, pivot pins, and gearboxes, it features a tiny spring-loaded check ball in the tip. When a grease gun or automated hose connects to it, the pressure pushes the ball back, letting grease in. When pressure stops, the ball snaps shut, keeping dirt out and grease in.

Get a Quick Quote

Key Advantages & Benefits:

  • Universal Compatibility: Standardized profiles ensure they work with practically every grease gun coupling in the world.
  • Contamination Barrier: The spring-loaded ball valve is a highly effective defense against industrial dust, water, and grit entering the bearing.
  • Multiple Angles: Available in straight (180°), 45°, and 90° angles to ensure accessibility in awkward and tight spaces.
  • Hardened Steel: Zinc-plated and case-hardened to withstand the physical abuse of heavy grease gun couplers.

Versatile Applications:

  • Automotive ball joints and tie rods
  • Agricultural tractor pivot points
  • Industrial electric motor bearings
  • Manual maintenance points on all machinery

Frequently Asked Questions (FAQ):

  • Q: Why won't my grease gun couple detach from the nipple? A: High residual pressure can lock the jaws of a grease coupler onto the nipple. Do not pull straight back. Tilt the coupler to an angle to break the seal, or use a pressure-release coupler.
  • Q: Can I replace a broken grease nipple? A: Yes, simply unscrew the broken fitting using a wrench or a specialized extraction tool, and thread a new one of the matching thread size (e.g., M6, 1/8 PT) in its place.

Related Products

Mink Coat With Fox Collar

Mink Coat With Fox Collar

Vibrant Dichroic Color-Shifting PVB Interlayer

Vibrant Dichroic Color-Shifting PVB Interlayer

High-Clarity PVB for Electrochromic Dynamic Tinting Glass

High-Clarity PVB for Electrochromic Dynamic Tinting Glass

Agri-PV Light-Diffusing PVB for Modern Greenhouses

Agri-PV Light-Diffusing PVB for Modern Greenhouses

Medical-Grade PVB for Radiation Shielding Leaded Glass

Medical-Grade PVB for Radiation Shielding Leaded Glass

Fire-Glazing Compatible Intumescent PVB Interlayer

Fire-Glazing Compatible Intumescent PVB Interlayer

FAQ

What aluminum alloys do you use to make motorcycle engine cases?

We mainly use high-performance aluminum alloys such as ADC12 and A356. The ADC12 is ideal for complex shapes such as side covers due to its excellent flow properties, while the A356 is the first choice for structural parts such as crankboxes that require excellent strength and elongation. We use a spectrometer to confirm the composition of each melt to ensure material stability.

How to ensure the tightness of the engine cover and prevent oil leaks?

Preventing leaks is the core standard we ensure. We control internal density through precise high or low pressure casting parameters. After casting, we perform precision CNC machining on the sealing surfaces and perform pneumatic leak tests on the oil passages and water passages to ensure zero leaks in the assembly.

How long is the delivery lead time for OEM motorcycle engine covers

For new OEM projects, the lead time from mold design to T1 sample delivery is typically 35-50 days. Once samples are approved, our capacity of 5000 tons per year allows us to adjust mass production plans to meet your specific delivery deadlines

What surface polishing options do you provide for motorcycle engine case covers?

Our process includes Shot Blasting and vibration deburring to achieve a clean, matte appearance. At the same time, we can also prepare powder coated or painted surfaces based on the aesthetic requirements of your brand.

Application Background and Use Scenario

Heat Pipe R&D and Sample Preparation


Heat pipe development requires stable and repeatable sample-level processing before entering mass production. During R&D stages, engineers need precise control over heating, degassing, and welding preparation to verify product structure and process feasibility. This equipment is designed to support such sample preparation tasks under controlled conditions.


Process Validation Before Mass Manufacturing


Before scaling up to full production lines, manufacturers often need to confirm welding parameters, heating lengths, and degassing performance. This machine provides a practical platform for process validation, helping reduce risks during later mass production deployment.


Integrated Heating and Degassing Process


The heating process is controlled by both temperature and time, allowing operators to set parameters according to different pipe diameters and material requirements. This helps maintain consistent thermal conditions during sample processing.