Ball Mill Maintenance & Installation Procedure
If everything is clear, the mill can be run for from six to eight hours, observing any abnormal reactions at the trunnion bearings, pinion bearings, and gear and pinion mesh. It should be noted that with an empty mill the reactions and operating characteristics of the bearings and gearing at this point are somewhat different than when operating with a ball or rod charge.
Trunnion Bearing Assembly Ball Mill & Rod Mill
Ball Mill PINION SHAFT BEARINGS. Pinion shaft bearings are of the SKF anti-friction type mounted in a common twin bearing assembly. Bearings are fixed in place so that the pinion shaft of the mill is always in alignment with the drive components. V-belt driven mills are furnished with an outboard bearing of similar construction.
Pinion bearing damage in ball mill - SPM Instrument
Pinion bearing damage in ball mill. Using HD measurement technologies, Bulgarian copper producer Asarel Medet AD monitors the mechanical condition of critical equipment in the open-pit mine and flotation plant. This case study deals with the successful detection of outer race damage on a ball mill pinion bearing.
Ball Mill Pinion - Vibration Analysis & Machinery ...
I have an issue with a gear drive on a ball mill. 2XGM is rising and i have sidebands at 107cpm and I dont know why they are at 107 (not relevant to any turning speeds ect.) I checked the root clearance a week ago and the inboard is about a .066 smaller than the outboard. The pinion is 24" long and has 24 teeth. It is obvious i have misalignment.And there is obvious spalling on the gear faces ...
ball mill pinion shaft bearing trunion
Grinding Mill Gear Assembly - Mineral Processing & Extractive ... Jul 28, 2015 ... By mill we refer to Ball Mills, Rod Mills and SAG Mills. ... Along the shaft that connects the motor to the pinion gear are two bearings these are ... to the Hydrostatic bearing that is employed as a trunnion bearing …
Bearing Inserts For Hardinge Ball Mill - MINIG …
Bearing Inserts For Hardinge Ball Mill. 9 5 x 12 ft Hardinge Ball or Rod Mill D Angelo International LLC Description 9 x 12 Hardinge Ball Rod Mill 13 wide single helical pinion and ring gear 49 x 13 5 trunnion bearings with bronze inserts Spare parts additional cost include pinion and ring gears and trunnion bearing …
BALL MILL GEARBOX PROBLEM - Vibration
BALL MILL PINION SPEED 226 BALL MILL GEAR SPEED 18 GEARBOX (Between Motor & Ball Mill) NB FTF BSF 2X BSF BPFO BPFI INPUT BRGS, SKF#22330 15 491 3,192 6,384 7,358 10,507 OUTPUT BRGS, SKF#22240 19 97 783 1,566 1,848 2,446 GEARBOX GEARMESH FREQ 22,629 19 Gearbox Pinion Tooth Count 19 Gearbox Bull Tooth Count 100 BALL MILL PILLOW BLOCK BEARINGS ...
High Vibration Ball Mill Duel Pinion Drive
A vibration survey was carried on this Ball Mill with a duel pinion drive. The vibration is high in all planes on both sides of the Mill or both pinion drives. The measurements were similar in velocity on the motor , gearbox and both pinion bearings.
Engineered to order solutions Retrofits for grinding mills
Engineered to order solutions Retrofits for grinding mills Our first grinding mill supplied date back to late 1950’s So far we delivered more than ... Illustrative example of components covered by engineered to order solutions in a ball mill. Foundation survey and repair ... and pinion bearings…
Paper # 25 - Copper Mountain Overview on the …
COPPER MOUNTAIN: OVERVIEW ON THE GRINDING MILLS AND THEIR DUAL PINION MILL DRIVES ... SAG mill, ball mill, ring gear, dual pinion, drive systems, ... bearings and mill. The coupling is set to release at a torque above the maximum expected operating torque but below the
HD Technologies Case Study: Ball Mill Bearing …
The subject of this case study is the NDE (non-drive end) Pinion Bearing of Ball Mill No 8 in the Mill Dpt. in the flotation plant. The bearings on the pinion are of type 22380YMB. SPM HD Spectrum from the NDE bearing shows a clear match of the BPFO (Ball Pass Frequency Outer Race) symptom.
SPM Instrument - Pinion bearing damage in ball mill
Ball mill at the Asarel Medet copper mine. Using HD measurement technologies, Bulgarian copper producer Asarel Medet AD monitors the mechanical condition of critical equipment in the open-pit mine and flotation plant.This case study deals with the successful detection of outer race damage on a ball mill pinion bearing.
How to install and align the girth gear and pinion | …
The cost of edge drive is low, but the pinion needs to be replaced every 2-5 years. Edge drive is mainly used in coal mills and mills with small power. The girth gear(big ring gear) and pinion are the key of the edge transmission device. Their reliable operation is directly related to the stable production of the mill.
Whats the Difference Between SAG Mill and Ball …
The ball mill adopts a discharge screen similar to the ball mill, and the function of blocking the internal medium of the overflow ball mill is accomplished inside the rotary part of the ball mill. The discharge screen is only responsible for forcing out a small amount of the medium that overflows into the discharge screen through the internal welding reverse spiral, to achieve forced ...
Solve pinion shaft grinding of ball mill on …
The ball mill is under the heavy load of low speed, heavy load and high speed, and under the action of equipment vibration and radial impact, metal fatigue occurs in the bearing chamber or bearing position, resulting in permanent deformation; bearing inner ring and shaft or bearing outer ring and bearing A clearance fit occurs in the chamber, causing wear in the relative motion.
BEARING FAILURE: CAUSES AND CURES - Schaeffler Group
BEARINGS Identitging and correcting causes of bearing faihue. Precision ball bearings are designed to have a long and useful Ii€e. Assuming the application is correct to begin with, maximizing longevity means bearings must be properly installed, lubricated and maintained. Poor operating environments. oarticularlv moist or contaminated areas.