Pressing Wheel Bearings? - 2004 f150 wheel bearing
the zoom, you cant really zoom that much but its ok since i have one on my remington airmaster 77 but soon will upgrade to a daisy 3-9x32 scope and thats cheap too.
This scope is a perfect fit for a Pumpmaster 760. My son has become an expert marksman since receiving this nice little upgrade.
where L10 = bearing life in hours at 90 percent reliability, C = bearing dynamic rating, P = bearing load, and e = 3 for ball bearings and 10/3 for roller bearings.
4x15scope
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I use mine on a 1377 with the Crosman 459MT mount and it works great. I get .25" grouping at 10 yards. Very good scope. Don't spend money on expensive scopes when this one will be just as good.
4x15Powerline Scope
OK scope for the price, don't unscrew the end eye piece or touch the cross... Not very durable. Had for about 2 weeks before it broke. I was trying to zero out the scope and all of a sudden the cross broke off inside. If you just want a cheap scope this is perfect, but if you are planning on being a sniper, invest in something $10 more.
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4x15scope meaning
Everything. Fifteen minutes with a vintage Diana 27--7 fp gun with low recoil and tuned to be super smooth so not worried about damaging internals although packaging says not recommended for break barrel guns--and presto. Very easy mounting, adequate light even on a very overcast day, and windage and elevation adjustments that brought a six-inch wide, two-inch high initial group to dead on. And at this price? Best deal in the universe.
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Keep in mind that these are ABMA life formulas, or so-called catalog life values, and do not consider or use any adjustment factors, such as those used for lubrication, cleanliness, or other factors.
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Simple to mount, simple to zero in and adjust. I use on an indoor 10M range. Ample aperture to acquire target. It's mounted on an old Daisy 850 Powerline single pump.
4x15scope range
i got this with my 880 daisy in a combo. It did great until I changed the settings. now have trouble to get it where i was from the start. I have to say I was New to using a scoped rifle. I have a 2" to 2.4 drop and this I liked. I am buying a second one next month. I want it for my Crosman or my Winchester M14. it have the power to it.
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4x15scope price
4x15price
added this to a 760 pumpmaster. a little fuzzy when you look through it but not real bad. This is great for a lower powered pump rifle. I only use it for the length of my yard,maybe 60 feet. Works great! now I wont miss those tree rats when they go after my bird feeder!
I bought this scope and LASSO mount to teach my grand son to shoot the Red Ryder, Very easy to mount on the gun and use.
For a duty cycle where there is variable torque (load), speed, and percent (fraction) of time, the weighted average bearing radial load or torque is:
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So, either the L10 bearing life must be calculated only once as in the first example formula or calculated for each part of the duty cycle, as in the last formula.
4x16
I bought this scope and LASSO mount to teach my grand son to shoot the Red Ryder, Very easy to mount on the gun and use.
No matter what I did, Shot same spot on target every time. I could adjust the scope all day and nothing would happen. Save your money.
This scope is kind of cheap however it is great for the price... Its mounts are pretty good and its made out of okay materials and is pretty durable. It comes with dust caps as well and is pretty easy to zero in as well.
Both gears and bearings are typically sized, and life is calculated based on the duty cycle from what is known as the weighted average torque and speed that represents a single torque and speed which would produce the same life as would be achieved if the system operated at the full duty cycle of torque speeds and percent times.
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These scopes are decent for about 15-yard plinking and even hunting, but the image quality is like looking through a paper towel tube with a magnifying glass. Other than that, they do their job.
Normally, it would have been necessary to use a value of S (speed) in both the weighted average load calculation and the bearing life calculation, with the value of S being the same in both places.
only buy it for co2 and pump airguns cause it get off sighted easy but not too bad only if you bump into a tree really hard or you drop your gun (ive done it knocked the scope from full zero to shooting a 1/2 inch low and 2 inches to the left not to bad and easy to readjust.
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In most gearbox applications, there is not one single torque and speed that the gearbox operates at but a series of torques and speeds and time intervals at each condition. These various conditions constitute data points on a duty cycle and together, they must be considered in their entirety.
im an expert airgunner and when i tryed scopeing this scope it took to to long i only ajusted it up to 6 yards not enough magnification
4x15for sale
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It would seem that this value of S would be important to the resulting life and that a weighted average speed would be required for this equation, but that is not the case. There is no requirement to calculate or use a weighted average speed in this formula, and since the speeds cancel each other out, any speed used would produce the same result. The differing speeds for the different points on the duty cycle are taken into account and reconciled in the weighted average radial load(force) calculation for P.
I scoped my Daisy Powerline 880 and the scope adjustments are not very affective for guns that are dramatically inaccurate but the solution is to know how high to aim at what distance. Its a well made and good scope for the price and is worth it.
Its to fuzzy and you have to be at just the right angle and about a 1 1/2 inch distance. The instruction Manuel is hard to find (its on the inside half of the card board inside of the package). The instruction are not descriptive which could be a problem for those who are just getting there first scope.
The main item to remember and consider is which type of bearing you are analyzing. Ball bearings use 3 and 1/3 as exponents in the equations and roller bearings (tapered, spherical, and cylindrical) use 10/3 and 3/10 for exponents.
No matter what I did, Shot same spot on target every time. I could adjust the scope all day and nothing would happen. Save your money.