Results 1 to 4 of 4
-
02-09-2010, 10:26 PM #1
rebuilding twin screw compressors
hi guys ive tried many different ideas to set the thrust on different screws, but 1 idea i had was eg on bitzer,refcomp,trane,was that because they have grub screws on axial bearing nuts was to calculate the thread pitch size and back off ,but some how it doesnt work , and i always hang them up with eye bolts and then measure the thrust and tighned the nuts.but its hard work especially when doing a bearing change on site with large compressors.does any body have any easier ways of setting thrust or any ideas , thankyou
-
02-09-2010, 10:49 PM #2
Re: rebuilding twin screw compressors
Ghaz what type of screw specifically ?
Use of dial indicator is common on most brands .Push rotor to discharge end set zero then clamp or secure thrusts , whatever is relevant to that screw .
-
03-09-2010, 11:05 AM #3
Re: rebuilding twin screw compressors
Gauge film in hundredths of mm. Tighten the register until the axial gap is within spec.
Unfortunately, they are all using angular contact ball bearings. Axial load shall be withstood by axial bearings. In this, they are all failing, from the most known, to the least one.
-
03-09-2010, 05:47 PM #4
Re: rebuilding twin screw compressors
hi ranger1 and nonickname the most common screws ive come across regular are bitzer csh75 csh85 csh 95 and medium size refcomp screws because they most common in chillers in uk
Similar Threads
-
Compressors - screw or reciprocating?
By Josip in forum Industrial CompressorsReplies: 18Last Post: 27-01-2009, 10:36 PM -
advantage of twin screw compressor over single screw compressor
By azzah in forum New to REReplies: 7Last Post: 23-09-2008, 09:24 AM -
FES screw compressors
By negmy13 in forum Technical SpeculationsReplies: 0Last Post: 08-08-2008, 07:40 AM -
do u have any data on comparison of single screw and twin screw?
By vuputuri in forum Technical SpeculationsReplies: 5Last Post: 22-02-2008, 03:52 PM -
Mono or twin screw
By Nirmalya in forum Industrial CompressorsReplies: 43Last Post: 12-09-2006, 03:19 AM