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It's possible that the slight binding you're experiencing at the start of rotation in your tractor's differential pinion is due to a few factors: New Bearings: New tapered bearings can feel slightly stiff at first compared to worn bearings. This is because they need to break in and wear to their optimal fit. Oil Viscosity: Adding oil to the bearings can create some initial drag, especially if the oil is thick when cold. As the oil warms up and thins out, the rotation should become smoother. Preload: There's a possibility the preload on the bearings might be slightly high. While 1 Nm is within the specified range (1-1.5 Nm), it could be on the tighter side. Here's how to approach the situation: Run the Tractor: Operate the tractor for a short period under normal load. This allows the bearings to break in and the oil to circulate, potentially reducing the initial stiffness. Monitor for Smoothness: If after some running time, the initial stiffness lessens and the rotation becomes consistently smooth in both directions, you're likely okay. Caution on Excessive Tightness: However, if the initial stiffness persists and increases significantly, especially when changing direction, it might indicate excessive preload. In that case, consult your tractor's service manual or a qualified mechanic for proper preload adjustment. Without the proper torque measurement tool, it's difficult to definitively diagnose the preload. However, if the stiffness lessens with use and doesn't worsen, you can likely continue monitoring. Here are some additional tips: Oil Weight: Ensure you're using the recommended oil weight for your tractor's differential. Using the correct oil viscosity will help minimize drag during operation. Service Manual: Refer to your tractor's service manual for specific instructions on differential bearing preload and oil recommendations. If you're still concerned or the stiffness worsens, consult a qualified mechanic who can assess the differential and adjust the preload if necessary. They will have the proper tools for accurate measurement.

@@casterconcepts wow, i m surprised how fast u answered my question, really really THANKS. I would do the test run with the tractor as u said, but it is complicated with my limited tools and time( we need to mow the grass for the horses soon =) ). I think i solved it and for the 70 hours per year as i use the tractor should be good. I marked the nut location, and unscrewed it for like a mark width(2mm), it is much easier on the rotation start now. I also asked a mechanic and he said that less preload is better than to much, because the tractor will be mainly used in summer when there is about 42°C outside, and the tractor is a small one, so the transmission oil gets hot i guess(maybe around 100°C i m not sure). So will the bearings also expand a bit or not much ? Anyway really thanks again, never got an answer so quickly and also correct and interesting !!

Thanks, for reaching out. We have not conducted a statistically significant study on Toe Guard effectiveness. Caster Concept toe guards are intended to prevent a cart’s wheel from rolling over a toe or foot. They are also designed to be and are most effective when safety shoes are worn by employees. Caster Concepts toe guards come at a standard of ½” floor clearance. This height accommodates most irregularities in flooring surfaces. Please contact us at Caster Concept. We can provide toe guards tailored to meet your specific requirements.

Thank you for your comment @MrTripleM7. We would like the opportunity to discuss your specific application to see if we're a fit for one-another. Please reach out to us at www.casterconcepts.com/contact/ and reference the video title "How Large of a caster do we make?" Thanks for watching. -Team Caster Concepts

@@casterconcepts Thanks for the PROMPT RESPONSE, do you have something with a valve stem.

@SONSTHREESIXTY Yes. Please give us a call to discuss this further. Phone: 517 781-8630

Hi Ryan, Most of the time when there is noise brought on by cart movement, it is exacerbated by the load. Padding the inside of your cart will allow the load to sit on something much softer than the metal/alloy frame that carts are usually made of. Keep in mind that if your load has sharp corners or anything along those lines, the padding will degrade over time. Depending on your cart design, there may be ways to pad certain areas of the cart to reduce noise. There may also be other caster issues going on (like flutter -czcams.com/video/-B5hYBhBMCk/video.html ) that could be causing the excessive rattle. Please give us a call 517 781-8630 to discuss in more detail.

Anytime, Cindy

One company does. Battery is also inside. And wireless option. 300mm tall wheel

Give us a call - 517 781-8630 to talk with one of our experts. Our Engineering Team can work with you to create your specific design for your application. If you want to learn more about our Drive Caster (Wired or Wireless), you are invited to visit our website at this link > www.casterconcepts.com/featured-brands/drive-caster-the-industrys-first-motor-powered-industrial-caster-wheel/? Thanks for watching and subscribing.

Thank you, Jack. We appreciate your business.

Let's talk. Please reach out to us via email sales@conceptual-innovations.com and reference "The Drive Caster video" in your subject line. We're sure to have a solution. =Give us a call if you'd like: 517 781-8630 Thanks!

Atanas, thank you! Simple answer, YES, We can help with a solution. Here is another video for the Drive Caster > czcams.com/video/FpbpEGrlIzAP/video.htmllease contact us at 517 781-8630. We are able to help you with a solution.