View Full Version : Greasing Hiwin 15mm

06-01-2018, 08:16 AM
I haven't fitted greasing fittings to my carriages as it's a PITA with the 15mm Hiwin's. Can I get away with just oiling the rail and then moving the carriages a few times over the oiled area.

I bought 2nd hand Hiwin and when I first got them they were a little tight but the jig had not been moved in a long time. I added a little synthetic engine oil to the rails and ran the carriages a few times over the oil and because super silky smooth like my clone rail is (Clone rail and carriages were new). I also realised I'll have to strip it down to add greasing points so oiling the rail would save me a lot of hassle.

06-01-2018, 07:29 PM
The idea of greasing the actual carriage, is it lubricates the passageways and provides lubrication for a good period, plus it helps to flush out contamination. By just oiling the rail, at best you'll get a coating of oil on the balls, and are more likely to get contamination into the carriage.

07-01-2018, 01:51 PM
Desertboy, have a read here; http://www.mycncuk.com/threads/7273-Greasing-Hiwin-HG15?highlight=hg15+grease
and here; http://www.cambam.co.uk/forum/index.php?PHPSESSID=92f953afc6293cfff8c3d36e7faf0e 46&topic=4966.msg38420#msg38420

07-01-2018, 06:42 PM
Someone posted a link to these 4mm fittings a while back, and I ordered 20 of them. But I haven't checked to see how well they'll work.

07-01-2018, 07:20 PM
Nice one :) exactly what I needed

08-01-2018, 11:15 AM
Hiwin carriages already come with a grease nipple, at least mine did, but you will struggle to find a fitting for them that does not leak grease everywhere, there seems to be a lot of back pressure from the bearing.