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Notes on use
Compared with the General machinery parts, higher accuracy of rolling bearings, and should accordingly be careful when using.
1) keep the TIMKEN bearings and around clean
2), when used carefully
If careless when using the bearing to strong shocks, bearing marks, creasing, fracture and other injuries occurred.
3) using the right tools
4) Note TIMKEN bearing corrosion
Avoid humid place and to not sweat stained, should be wearing gloves.
5) users should be familiar with TIMKEN bearings
6) bearing job norm-setting
Custody of a bearing
B, perimeter of the bearing and its cleansing
C, installation size and quality inspection of parts
D, installation job
E and after installation check
F, demolition job {TodayHot}
G, maintenance (periodic inspection)
Complement h, lubricants
Bearing storage
TIMKEN bearings are coated with the right amount of rust preventive oil at the factory with a rust-proof paper package, as long as the packaging is not compromised, TIMKEN bearing quality will be guaranteed.
But the long-term storage, to be at temperatures below under 65% conditions, temperatures of about 20 degrees Celsius, kept on a shelf above the ground 30cm. In addition, the storage area should avoid direct sunlight or cold walls touching.
Bearing installation
Pre-installation considerations
1) bearing preparation
Due to the TIMKEN bearing anti-rust treated and packed, so no new year do not open the package before installing.
In addition, TIMKEN bearings coating antirust oil with excellent lubricating properties, for general purpose of filling grease TIMKEN bearings or bearings, can be used directly without cleaning. But for instrument bearings or bearings for high-speed rotation, clean cleaning oil antirust oil wash away, TIMKEN bearings easily rusts, cannot be placed for a long time.
2) testing of shaft and housing
Cleaning TIMKEN bearings and the shell, confirmed Burr without leaving scars or mechanical processing. Shell must not be abrasive (such as SiC, Al2O3) sand, chips, etc.
Before you install the TIMKEN bearing, at the inspection of the shaft and housing mating surfaces of coated mechanical oil.
Bearing installation methods
TIMKEN bearings TIMKEN bearing installation methods vary according to the type and conditions of cooperation.
Due to the generally rotate, inner and outer rings can be used interference fit in conjunction with {HotTag} gap between patrons ring rotates, the outer ring to the interference fit.
(1) the push install
Push install uses presses, bolts and nuts can also be used, a last resort you can use when Bishop installed.
(2) heat install
TIMKEN bearings in oil heated to make it expand, and then installed in the hot way to make TIMKEN bearings on the shaft to avoid unnecessary force, complete the installation job in a short time.
Heating considerations:
1) General heating do not exceed 100 degrees Celsius.
2) does not allow contact bearing oil Groove bottom.
Another hot set of install you can also heat the TIMKEN bearings using induction heating devices installed after its expansion on the shaft.
TIMKEN bearing removal
Periodic inspection or replacement parts, requires removal of the TIMKEN bearings. General shafts and bearing boxes are almost all to continue to use, bearing also tend to want to continue to use it. Therefore, the structure is designed to take into account when disassembling bearing, does not damage bearing, axle, TIMKEN bearing boxes and other parts, as well as to prepare the appropriate demolition tools. When removing static matching rings, tension can only be added on the rings, not scroll through the pull ring.
Bearing maintenance
For TIMKEN bearings and long maintained its performance into full play, must be doing regular maintenance (periodic inspection).
Through appropriate checks on a regular basis, so that early detection of failures and prevent accidents, it is imperative, for productivity and economic importance.
1, cleaning
Bearing removed when checking, first with methods such as photographic appearance record. In addition, to confirm that the excess capacity of the lubricants and lubricants sample, and then cleaning TIMKEN bearings.
A, TIMKEN bearings cleaning carried out in rough cleaning and washing, and can be used at the bottom of the container placed on the metal rack.
When b, heavy wash, brush clearing, such as in the oil grease or stickers. At this point if oil turn the TIMKEN bearings, note that foreign body injuries, such as scroll bars will surface.
C, fine when washing, slowly turn the TIMKEN bearings in oil, be careful.
Cleaning agents are commonly used as neutral does not contain water, diesel or kerosene, sometimes using temperature as needed, such as lye. Regardless of what kind of cleaning agents, are often filtered clean.
After cleaning, coating rust preventive oil on the TIMKEN bearings immediately or rust-inhibiting lipid peroxidation.
2, inspection and judgement
TIMKEN bearings were salvaged in order to determine whether to reuse, to check its size, rotate, precision-oriented, internal clearance as well as the mating surfaces, Raceway, cage and seal ring.
On the inspection results, may be used TIMKEN bearings or bearing savvy to judge.
Standard based on mechanical performance and a significant degree of judgment and inspection cycle varies. If following injury, TIMKEN bearing shall not be reused and must be replaced.
1) TIMKEN bearing parts of faults and shortcomings.
2) split of Raceway surface scroll surface.
TIMKEN bearings fault diagnosis method
Without teardown check, identify or predict TIMKEN bearings have trouble-free in operation, to increase productivity and economy is very important.
Major recognition methods are as follows:
1) by voice recognition
By voice recognition needs to have a wealth of experience. Must be fully trained reaches to identify sound TIMKEN bearings and non-bearing sound. This should be done by hand as much as possible to carry out the work. Using the listen or listen to the sound bar affixed to the shell can be clearly heard on TIMKEN bearing sound.
2) identified by operating temperature
The method is a method to identify, is limited to use in running condition, less change of occasions. To this end, the need for continuous recording of the temperature. If a fault occurs, not only temperature, irregular changes also occur.
3) through State recognition of lubricants
Analysis on lubricant sampling, whether through the level of dirty or metal powder mixed with foreign body to judge. The method could not be closer to the look of the TIMKEN bearings or large bearings are particularly effective.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| RLM304020 NSK | 30 | 40 | 20 |
| RLM3025 NSK | 30 | 37 | 25 |