How typically do you re-pack bearings? Ever questioned whether or not you are doing it proper? Effectively listed here are 4 essential issues when deciding to lubricate a bearing:How typically do you re-pack bearings? Ever questioned whether or not you are doing it proper? Effectively listed here are 4 essential issues when deciding to lubricate a bearing:
Lubricant selection
Quantity of lubricant to be delivered
Software strategy
Software Frequency
There are lots of distinct methods to use the grease to a bearing, and opinions differ regarding which strategy is greatest. Due to this fact, the most effective angle could also be to make use of fairly a number of strategies to accumulate a method that defines default values, which might then be fine-tuned, based mostly on suggestions from visible inspections, working temperature, ultrasonic instrumentation and different components.
Because of the inconsistency of working scenario and machine design, it could possibly be impractical to be exact with out introducing the condition-based part to the components. Situation-based lubrication ought to kind a part of any world-class program.
Grease Selection
When re-packing a bearing, place to begin is choosing the proper grease. Simply selecting the best-quality grease is just not as important as selecting the proper grease for a set utility. Too typically, grease selection is oversimplified and the primary properties of the grease neglected.
Grease choice is much extra problematical than lubricating oil choice. Because of the lack of specificity in most grease suggestions, it’s crucial to understand the way to choose greases for particular person purposes. Good grease specification includes all the elements of lubricating-oil specification. These embrace:
Base oil viscosity
Additive necessities
Base oil kind
Thickener kind and focus
Uniformity
Dropping level
Working-temperature vary.
Whereas most customers acknowledge grease high quality, many do not cease to ensure the right lubricant is getting used to make sure environment friendly lubrication.
How a lot grease to make use of
One of many extra essential however usually slipshod steps of the greasing technique is how a lot grease to make use of to lubricate a bearing. “Nonetheless a lot it takes” is just not greatest observe! There are lots of methods of estimating the proper relubrication quantity. SKF have the next info to outline the proper quantity:
Gp = 0.005 * D * B
the place
Gp = grease replenishment quantity (gm)
D = bearing exterior diameter (mm)
B = complete bearing width (mm) This method offers constructive outcomes, however you ought to be conscious that it doesn’t account for variations in bearing housings and utility factors; assuming the grease is added on the optimum web site. It’s also not always potential to know the amount and situation of previous grease within the housing on the time of reapplication.
For these causes, it could be advantageous to manage the calculated values with a condition-based technique while you re-pack a bearing. Essentially the most superior condition-based system is ultrasonic instrumentation, which optimizes the relubrication quantity. By establishing a baseline worth and figuring out a statistically appropriate restrict, the amount of grease added to re-lubricate a bearing could be optimized.
Making use of the grease while you lubricate a bearing
There are a number of strategies of making use of grease while you lubricate a bearing.
Utilizing centralized utility techniques
Single-point auto utility techniques
Hand packing
The handbook grease gun
A compelling argument could be made for the prevalence of steady utility techniques to lubricate a bearing, however regrettably, they’re impractical for many purposes. Due to this fact, the handbook grease gun is probably the most widespread utility mode and is the main focus of this text.
Guide grease utility, when carried out precisely, is an effectual technique and offers fairly a number of benefits over automated techniques.
The handbook utility observe used to lubricate a bearing requires the technician to be in shut proximity to the lubricated module. This permits for inspection utilizing sensory observations akin to sight, scent and sound. Instrument inspections, akin to ultrasonic monitoring and temperature readings, are additionally useful in offering part situation info whereas fine-tuning the lubrication coverage sex lube B07YFSLSBX.
Confirm the proper utility Frequency
Figuring out the proper intervals to lubricate a bearing is without doubt one of the harder steps. Many components have to be measured to be reasonably correct in figuring out the most effective utility frequency. Elements to keep in mind when wanting on the right frequency are:
Working temperature
Seal kind and situation
Particle air pollution
Moisture
Vibration
Industrial Grease kind
For accuracy, suggestions is required from the lubricated elements to confirm the right frequency has been chosen. For frequency, as with quantity, ultrasonic instrumentation is likely to be the most effective device out there. A conservative strategy is to make use of a frequency era technique as a place to begin, and constantly refine that worth based mostly on suggestions from the ultrasonic gear and different bodily observations.
Summation
Optimizing a grease lubrication coverage could be tough. One of the best tactic is to merge the most recent know-how with confirmed established statement strategies. Put merely, simply keep in mind to make use of the appropriate lubricant in the appropriate place, and use the appropriate utility technique in the appropriate amount on the proper time while you lubricate a bearing.