Steel Ball
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 331 pack 5 16 Steel Ball slingshot ammo 1 1 2 lbs $18.00 Time Remaining: 8h 41m |
 100x 8mm Steel Ball For Slingshot Ammo Catapult Bike Bearing DB165 $4.96 Time Remaining: 14d 14m Buy It Now for only: $4.96 |
 100x 1 4 Steel Ball 635mm Slingshot Ammo Catapult Bike Bearing $2.38 Time Remaining: 14d 46m Buy It Now for only: $2.38 |
 170x635mm Steel Ball For Sling Slingshot Ammo catapult $6.58 Time Remaining: 21d 4m Buy It Now for only: $6.58 |
 319 pack 3 8 Steel Ball slingshot ammo 2 1 2 lbs $23.00 Time Remaining: 9h 43m |
 Bullet Coating Reloading Tumbling Tumble Media Steel Ball Bearings Shot 150 BB $19.95 Time Remaining: 3d 17h 24m Buy It Now for only: $19.95 |
 Magnetic Device to Carry Steel Balls Ammo for Slingshot $6.50 Time Remaining: 28d 20h 12m Buy It Now for only: $6.50 |
 470x 8mm5 16steel ball AMMO For Slingshot Catapult $25.00 Time Remaining: 14d 2h 25m Buy It Now for only: $25.00 |
 81 pack 1 2 Steel Ball slingshot ammo 1 1 2 lbs $18.00 Time Remaining: 11h 58m |
 30PCS 10mm2 5steel bearing ball AMMO For Slingshot $5.29 Time Remaining: 8d 23h 26m Buy It Now for only: $5.29 |
 Trumark 120 Count 5 16 steel balls Slingshot ammo SA30 $4.99 Time Remaining: 7d 14h 38m Buy It Now for only: $4.99 |
 85x 635mm Stainless Steel Ball For Slingshot catapult $3.88 Time Remaining: 20d 23h 52m Buy It Now for only: $3.88 |
 HEAVY DUTY HIGH VELOCITY SLING SHOT W STEEL BALL $0.99 (1 Bid) Time Remaining: 13h 46m |
 40 pack 1 2 Steel Ball slingshot ammo 12 oz $8.00 Time Remaining: 27d 2h 28m Buy It Now for only: $8.00 |
 752 piece Steel Ball slingshot ammo assortment $38.00 Time Remaining: 27d 2h 28m Buy It Now for only: $38.00 |
 202 pack 1 2 Steel Ball slingshot ammo 3 3 4 lbs $28.00 Time Remaining: 27d 2h 28m Buy It Now for only: $28.00 |
 320 6mm dia Steel Ball slingshot ammo bottle $11.00 Time Remaining: 2d 9h 2m |
 5 Bag Steel Balls Ammo for Slingshot SEALED in BAG 10mm $14.50 Time Remaining: 24d 1h 52m Buy It Now for only: $14.50 |
 300pcs 10mm2 5steel ball AMMO For Slingshot Hunting $25.99 Time Remaining: 8d 23h 57m Buy It Now for only: $25.99 |
 Trumark 3 8 Steel Ball Slingshot Ammo 70 Pk SA375 $7.95 Time Remaining: 13d 22h 11m Buy It Now for only: $7.95 |
 551 pack 5 16 Steel Ball slingshot ammo 2 1 2 lbs $23.00 Time Remaining: 2d 13h 46m |
 141x 8mm5 16steel bearing ball AMMO For Slingshot $11.50 Time Remaining: 14d 2h 19m Buy It Now for only: $11.50 |
 60pcs 10mm2 5steel ball AMMO For Slingshot Hunting $9.35 Time Remaining: 8d 23h 40m Buy It Now for only: $9.35 |
 510x 635mm Stainless Steel Ball For Slingshot catapult $14.00 Time Remaining: 21d 24m Buy It Now for only: $14.00 |
 121 pack 7 16 Steel Ball slingshot ammo 1 1 2 lbs $18.00 Time Remaining: 2d 13h 58m |
 HD STEEL SAIGA 12 GOLF BALL LAUNCHER 22x75mm $50.00 Time Remaining: 4h Buy It Now for only: $50.00 |
 150pcs 10mm2 5steel ball AMMO For Slingshot Hunting $13.65 Time Remaining: 8d 23h 51m Buy It Now for only: $13.65 |
 380 pack 6mm Steel Ball slingshot ammo bottle $12.50 Time Remaining: 2d 14h 10m |
 Trumark 70 Count 3 8 steel balls Slingshot ammo SA375 $4.99 Time Remaining: 28d 18h 51m Buy It Now for only: $4.99 |
 120 count 5 16 steel balls slingshot ammo 30cal sling $3.98 Time Remaining: 8d 19h 35m Buy It Now for only: $3.98 |
 782 pack 6mm Steel Ball slingshot ammo 1 1 2 lbs $23.00 Time Remaining: 27d 2h 51m Buy It Now for only: $23.00 |
 1303 pack 6mm Steel Ball slingshot ammo 2 1 2 lbs $27.00 Time Remaining: 2d 16h 46m |
 Slingshot Ammo Catapult Stainless Hunter Steel shot Bearing Ball 8mm 100 qty NEW $9.89 Time Remaining: 26d 7h 36m Buy It Now for only: $9.89 |
 47x 8mm5 16steel bearing ball AMMO For Slingshot New $6.99 Time Remaining: 14d 2h 10m Buy It Now for only: $6.99 |
 319 pack 3 8 Steel Ball slingshot ammo 2 1 2 lbs $20.00 Time Remaining: 27d 16h 50m Buy It Now for only: $20.00 |
 Trumark 3 8 Steel Ball Slingshot Ammo 70 Pk SA375 $6.95 Time Remaining: 3d 21h 30m |
 Catapult Slingshot Ammo 12mm Chrome Steel Ball Bearings Hunters 50 pack $10.22 Time Remaining: 2d 15h 1m Buy It Now for only: $10.22 |
 100x 635mm Steel Ball For Slingshot Catapult Bike Bicycle Bearing DB166 $2.97 Time Remaining: 14d 18m Buy It Now for only: $2.97 |
 Slingshot Ammo 6mm Steel Shot Balls 350 qty $8.95 Time Remaining: 10d 16h 35m Buy It Now for only: $8.95 |
 Trumark 5 16 Steel Ball Slingshot Ammo 120 Pk SA30 $6.95 Time Remaining: 3d 21h 30m |
 SHS Airsoft Full Steel 6mm ball bearing bushing ZT0017 6pcs $13.00 Time Remaining: 17d 12h 37m Buy It Now for only: $13.00 |
 478 pack 3 8 Steel Ball slingshot ammo 3 3 4 lbs $28.00 Time Remaining: 27d 16h 50m Buy It Now for only: $28.00 |
 Magnetic Ring to Carry Steel Balls Ammo for Slingshot $6.88 Time Remaining: 1d 3h 51m Buy It Now for only: $6.88 |
 782 pack 6mm Steel Ball slingshot ammo 1 1 2 lbs $20.00 Time Remaining: 4d 16h 48m |
 96 pack 3 8 Steel Ball slingshot ammo 12 oz $13.00 Time Remaining: 27d 16h 50m Buy It Now for only: $13.00 |
 188x 8mm5 16steel ball AMMO For Slingshot Hunting $12.88 Time Remaining: 14d 2h 19m Buy It Now for only: $12.88 |
 1008mm Steel Ball Slingshot Ammo $5.45 Time Remaining: 6d 20h 30m Buy It Now for only: $5.45 |
 1303 pack 6mm Steel Ball slingshot ammo 2 1 2 lbs $26.00 Time Remaining: 4d 19h 36m |
 Catapult Slingshot Ammo 95 mm 3 8 inch Steel Ball Bearing Hard Hitting x 200 $13.33 Time Remaining: 22d 12h 16m Buy It Now for only: $13.33 |
 85Pcs 635mm Rubber Band Clip Steel Ball For Slingshot $3.88 Time Remaining: 11d 2h 50m Buy It Now for only: $3.88 |
 Trumark 5 16 Steel Ball Slingshot Ammo 120 Pk SA30 $6.95 Time Remaining: 4d 22h 46m |
 Slingshot Ammo 6mm Steel Shot Balls 3600 qty $47.65 Time Remaining: 10d 16h 35m Buy It Now for only: $47.65 |
 174x Rubber Band Clip Steel Ball For Slingshot Catapult $7.88 Time Remaining: 16d 22h 59m Buy It Now for only: $7.88 |
 200 6mm Steel Ball Slingshot Ammo GY $5.32 Time Remaining: 18d 17h 9m Buy It Now for only: $5.32 |
 Trumark 3 8 Steel Ball Slingshot Ammo 70 Pk SA375 $6.95 Time Remaining: 4d 22h 46m |
 BOX OF BBS VINTAGE BB COPPER BRASS BALLS STEEL BALLS $7.64 Time Remaining: 2d 17h 39m Buy It Now for only: $7.64 |
 240x 1 4 Steel Ball635mm Slingshot Ammo $10.44 Time Remaining: 20d 9h 10m Buy It Now for only: $10.44 |
 100 1 4 635mm Steel Ball for Bearing Slingshot Ammo Catapult $4.38 Time Remaining: 4d 16h 40m Buy It Now for only: $4.38 |
 96 pack 3 8 Steel Ball slingshot ammo 12 oz $10.50 Time Remaining: 5d 19h 22m |
 280x 3 8 Steel Ball95mm Slingshot Ammo $16.14 Time Remaining: 20d 9h 10m Buy It Now for only: $16.14 |
 Yaksha Slingshot Athletics Catapult Outdoor Hunting with 5 Stainless Steel Balls $13.33 Time Remaining: 14d 2h 4m Buy It Now for only: $13.33 |
 2204 pack 5 16 Steel Ball slingshot ammo 10 lbs $55.00 Time Remaining: 27d 2h 27m Buy It Now for only: $55.00 |
 Trumark 3 8 Steel Ball Slingshot Ammo 70 Pk SA375 $6.95 Time Remaining: 5d 21h 3m |
 1x Rubber Band ELASTICA For Slingshot +Steel Ball Clips $3.99 Time Remaining: 12d 1h 35m Buy It Now for only: $3.99 |
 100x 3 8 95mm Stainless Steel Ball Slingshot Ammo $6.26 Time Remaining: 9d 19h 39m Buy It Now for only: $6.26 |
 Slingshot Ammo 6mm Steel Shot Balls 1400 qty $23.35 Time Remaining: 10d 16h 35m Buy It Now for only: $23.35 |
 Trumark 5 16 Steel Ball Slingshot Ammo 120 Pk SA30 $6.95 Time Remaining: 5d 21h 3m |
 4 Strand 1745 Slingshot Bands With Steel Ball Insert $5.00 Time Remaining: 28d 10h 5m Buy It Now for only: $5.00 |
 100x 5 16 Steel Ball8mm Slingshot Ammo $9.49 Time Remaining: 20d 9h 10m Buy It Now for only: $9.49 |
 Trumark 5 16 Steel Ball Slingshot Ammo 72 Pk SA30C $6.95 Time Remaining: 13d 22h 11m Buy It Now for only: $6.95 |
 391 pack 6mm Steel Ball slingshot ammo 12 oz $11.00 Time Remaining: 6d 9h 50m |
 High Speed Stainless Steel Slingshot Hunting Catapult + 4 Stainless Steel Balls $12.55 Time Remaining: 14d 2h 22m Buy It Now for only: $12.55 |
 SHS Airsoft Full Steel 8mm ball bearing bushing 6pcs $13.50 Time Remaining: 26d 3h 40m Buy It Now for only: $13.50 |
 90 x Rubber Band Clip Steel Ball For Slingshot Catapult $5.88 Time Remaining: 16d 22h 56m Buy It Now for only: $5.88 |
 202 pack 7 16 Steel Ball slingshot ammo 2 1 2 lbs $23.00 Time Remaining: 6d 11h 38m |
 940x 1 4 Steel Ball635mm Slingshot Ammo $16.99 Time Remaining: 7d 9h 19m Buy It Now for only: $16.99 |
 100 1 4 635mm Steel Ball for Bearing Slingshot Ammo Catapult $4.39 Time Remaining: 5d 9h 6m Buy It Now for only: $4.39 |
 60 pack 7 16 Steel Ball slingshot ammo 12 oz $10.50 Time Remaining: 6d 16h 2m |
 850x 635mm Stainless Steel Ball For Slingshot catapult $20.00 Time Remaining: 21d 28m Buy It Now for only: $20.00 |
 100 X 1 4 635mm Steel Ball for Bearing Slingshot Ammo Catapult $1.00 Time Remaining: 4d 16h 43m Buy It Now for only: $1.00 |
 376x 8mm5 16steel bearing ball AMMO For Slingshot $22.00 Time Remaining: 14d 2h 21m Buy It Now for only: $22.00 |
 HEAVY DUTY HIGH VELOCITY SLING SHOT W STEEL BALL $0.99 Time Remaining: 6d 16h 43m |
 2LBS 7 257mm Steel Ball for slingshot ammunition ammo $20.98 Time Remaining: 3d 22h 44m Buy It Now for only: $20.98 |
 331 pack 5 16 Steel Ball slingshot ammo 1 1 2 lbs $21.00 Time Remaining: 27d 2h 27m Buy It Now for only: $21.00 |
 High Speed Powerful Slingshot Hunting Catapult + 4 Stainless Steel Balls $12.50 Time Remaining: 14d 2h 22m Buy It Now for only: $12.50 |
 Trumark 5 16 Steel Ball Slingshot Ammo 120 Pk SA30 $6.95 Time Remaining: 6d 21h 36m |
 121 pack 7 16 Steel Ball slingshot ammo 1 1 2 lbs $21.00 Time Remaining: 27d 2h 27m Buy It Now for only: $21.00 |
 81 pack 1 2 Steel Ball slingshot ammo 1 1 2 lbs $15.00 Time Remaining: 27d 2h 28m Buy It Now for only: $15.00 |
 635mm 100 x 1 4 Stainless Steel Ball Slingshot Ammo $4.32 Time Remaining: 23d 18h 16m Buy It Now for only: $4.32 |
 Trumark 3 8 Steel Ball Slingshot Ammo 70 Pk SA375 $6.95 Time Remaining: 6d 21h 36m |
 Lot 100 1 4 635mm Steel Ball for Bearing Slingshot Ammo Catapult $4.39 Time Remaining: 5d 18h 23m Buy It Now for only: $4.39 |
 551 pack 5 16 Steel Ball slingshot ammo 2 1 2 lbs $20.00 Time Remaining: 27d 11h 15m Buy It Now for only: $20.00 |
 Fox Stainless Steel Slingshot Sling + 85pcs steel balls $10.88 Time Remaining: 15d 3h 34m Buy It Now for only: $10.88 |
 100x 635mm Steel Ball For Slingshot catapult as Bearing Balls or Slingshot ammo $0.01 Time Remaining: 20h 12m |
 DAISY 3 8 STEEL BALL SLINGSHOT AMMO 70 PACK 8183 $3.59 Time Remaining: 13d 21h 9m Buy It Now for only: $3.59 |
 1275 pack 3 8 Steel Ball slingshot ammo 10 lbs $55.00 Time Remaining: 27d 16h 50m Buy It Now for only: $55.00 |
 100x 1 4 635mm Stainless Steel Ball for Slingshot Catapult Best Price $3.89 Time Remaining: 16d 2h 25m Buy It Now for only: $3.89 |
 100 8mm Steel Balls For Bike Bicycle Bearing Slingshot Ammo Catapult $0.99 Time Remaining: 3d 21h 33m |
 Trumark Slingshot SA30 Steel Balls Ammo 120 Count Package NEW $8.05 Time Remaining: 14d 20h 26m Buy It Now for only: $8.05 |
 165 pack 5 16 Steel Ball slingshot ammo 12 oz $13.00 Time Remaining: 27d 2h 27m Buy It Now for only: $13.00 |
Steel Ball
Spherical Perfection In Steel Balls
Steel balls look like classy marbles. The shiny gleam and the glassy surface make them ideal as a play-toy, but that is not what they are used for—largely not anyway. Instead, a steel ball is one of the most important features in applications like antilock brakes, ball bearings, CV joints and seatbelt locks. In general, steel is the choice material for ball construction in the automotive and aerospace industry.
Steel outperforms other metals used to make balls such as chrome or tungsten carbide for its noncorrosive properties, hardness and cost efficiency. While chrome has many useful applications, it cannot be placed in environments where it is likely to often be wet or subject to fluid contamination. Though tungsten carbide is far harder and noncorrosive, its sheer expense makes it unavailable for most applications.
Steel is the ideal medium. Steel is swell resistant at only 6.4 microinches, per inch, per degree Fahrenheit. Simply stated, in a hot combustion engine, steel balls will not swell to larger sizes and cause abrasion to their components. Chrome and aluminum both swell more than twice as much in the same heat equations does. Again, tungsten carbide is more resistant but at a high cost.
Steel balls are the choicest product in their many applications. Many people are unaware of the numerous places where steel is the select material, and where balls are placed. For simple rolling appliances like hospital curtains, balls are used in most patient rooms.
Everyone who has used a ballpoint pen has enjoyed the noncorrosive factors of steel for smooth writing. People whose lives have been saved by a seat belt locking in a bad car accident can thank steel. The metal is simply the most effective medium for the most useful shape: the sphere.
Numerous companies provide balls made from every material from glass to aluminum and of course, steel. Commonly, companies provide sizing-charts for clients to order, ranging from 1/64th of an inch to three inches. Smaller sizes are utilized for pen points while larger balls are used in pivot joint machinery like a sprinkler system. Special orders and companies with broader scoping machinery produce balls up to six inches in diameter. These larger sizes are most commonly utilized in airplane wing-flaps or as ball bearings for semis.
Only tungsten carbide has the ability to valve-stop gas piping for industries like Halliburton or Schlumberger, making it the winner of that competition. For the rest of the industry, there is steel, steel or steel. The most versatile metal known to man is steel. The most useful shape is the sphere. The two combine to make one of the most unassuming, and profound products on the market. The next time a person turns on his or her car, he or she should thank steel balls for the safety they have provided all these years.
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What radius (in mm) must a steel (iron) ball bearing have if it is to have a mass of 1.25g?
What radius (in mm) must a steel (iron) ball bearing have if it is to have a mass of 1.25g?
V = 4/3(pi)r^3
Density of Iron = 7.7874
Mass = 1.25
Volume = .1605
Work shown would be appreciated, Thanks in advance.
Mass = 1.25g = 0.00125kg
Density = 7787.4 kg/m3
V= mass / density = 1.605e-7m3
V = 4/3(pi)r^3 = 1.605e-7 m3
r^3 = ( 1.605e-7 * (3/4) ) / pi
= 3.83 e-8 m3
r = Cubed root of 3.83 e-8
= 3.37e-3 m *1000 = 3.37mm (i find it easier working in metres)
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