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PV Calculation
PV is a means of measuring the performance capabilities of bearings.
P is expressed as pressure or pounds per square inch on the projected area of the bearing. V is velocity in feet per minute of the wear surface (surface feet per minute).
For sleeve (plain) bearings, the surface speed is .262 (pi divided by 12) x RPM x shaft diameter in inches. P is equal to the load on the bearing in pounds divided by the projected area in square inches. For sleeve (plain) bearings, the projected area is the length x the inside diameter of the bearing.
PV is then obtained by multiplying P x V as shown in the following example:
¾” shaft @ 341 RPM, 90 lb. total load, bearing length 1”. V = .262 x RPM x shaft diameter, or .262 x 341 x .750 = 67 sfpm.
P = total load divided by projected area (area = .750 x 1.0 = .75 sq. in.), or 90 lbs. divided by .75 = 120 psi.
PV = 120 psi x 67 sfpm = 8040 PV.
P VALUE (MAX) | V VALUE (MAX) | PV VALUE (MAX) | |
Cast Bronze C93200 Sleeve (Plain) Bearings | 4,000 | 750 | 75,000 |
Cast Bronze C93200 Sleeve (Plain) Metric Bearings | 4,000 | 750 | 75,000 |
Cast Bronze C93200 Flanged Metric Bearings | 4,000 | 750 | 75,000 |
C93200 Solid Bronze Bars | 4,000 | 750 | 75,000 |
C93200 Cored Bronze Bars | 4,000 | 750 | 75,000 |
C93200 Centrifugal Bronze Bars | 4,000 | 750 | 75,000 |
C93200 Bronze Wearplate | 4,000 | 750 | 75,000 |
B04 Solid Bronze Bars | 4,000 | 500 | 75,000 |
B04 Cored Bronze Bars | 4,000 | 500 | 75,000 |
B04 Centrifugal Bronze Bars | 4,000 | 500 | 75,000 |
C93700 Solid Bronze Bars | 4,000 | 1,000 | 85,000 |
C93700 Cored Bronze Bars | 4,000 | 1,000 | 85,000 |
C93700 Centrifugal Bronze Bars | 4,000 | 1,000 | 85,000 |
C93800 Solid Bronze Bars | 2,500 | 1,000 | 75,000 |
C938 Cored Bronze Bars | 2,500 | 1,000 | 75,000 |
C938 Centrifugal Bronze Bars | 2,500 | 1,000 | 75,000 |
C90300 Solid Bronze Bars | 5,000 | 250 | 90,000 |
C90300 Centrifugal Bronze Bars | 5,000 | 250 | 90,000 |
C90700 Solid Bronze Bars | 5,000 | 250 | 100,000 |
C90700 Centrifugal Bronze Bars | 5,000 | 250 | 100,000 |
C86300 Solid Manganese Bronze Bars | 8,000 | 150 | 150,000 |
C86300 Cored Manganese Bronze Bars | 8,000 | 150 | 150,000 |
C86300 Centrifugal Manganese Bronze Bars | 8,000 | 150 | 150,000 |
C95400 Solid Aluminum Bronze Bars | 6,000 | 250 | 125,000 |
C95400 Cored Aluminum Bronze Bars | 6,000 | 250 | 125,000 |
C95400 Centrifugal Aluminum Bronze Bars | 6,000 | 250 | 125,000 |
C95400 Aluminum Bronze Wearplate | 6,000 | 250 | 125,000 |
C95500 Solid Aluminum Bronze Bars | 7,000 | 300 | 135,000 |
C95500 Cored Aluminum Bronze Bars | 7,000 | 300 | 135,000 |
C95500 Centrifugal Aluminum Bronze Bars | 7,000 | 300 | 135,000 |
C95900 Solid Aluminum Bronze Bars | 8,000 | 100 | 150,000 |
C95900 Aluminum Bronze Wearplate | 8,000 | 100 | 150,000 |
Powdered Metal Sleeve (Plain) Bearings | 2,000 | 1,200 | 50,000 |
Powdered Metal Sleeve (Plain) Metric Bearings | 2,000 | 1,200 | 50,000 |
Powdered Metal Flanged Bearings | 2,000 | 1,200 | 50,000 |
Powdered Metal Flanged Metric Bearings | 2,000 | 1,200 | 50,000 |
Powdered Metal Thrust Washers | 2,000 | 1,200 | 50,000 |
Powdered Metal Extra Sleeve (Plain) Bearings | 2,000 | 1,200 | 50,000 |
Powdered Metal Extra Flanged Bearings | 2,000 | 1,200 | 50,000 |
Powdered Metal Extra Thrust Washers | 2,000 | 1,200 | 50,000 |
Powdered Metal ECO Sleeve (Plain) Bearings | 2,000 | 1,200 | 50,000 |
Powdered Metal ECO Flanged Bearings | 2,000 | 1,200 | 50,000 |
Powdered Metal ECO Thrust Washers | 2,000 | 1,200 | 50,000 |
Powdered Metal Dri-Plane Sleeve (Plain) Bearings | 1,600 | 1,000 | 40,000 |
Powdered Metal Dri-Plane Flanged Bearings | 1,600 | 1,000 | 40,000 |
Powdered Metal Dri-Plane Thrust Washers | 1,600 | 1,000 | 40,000 |
Powdered Metal BB-16 Sleeve (Plain) Bearings | 8,000 | 35 | 75,000 |
Powdered Metal BB-16 Flanged Bearings | 8,000 | 35 | 75,000 |
Powdered Metal BB-16 Thrust Washers | 8,000 | 35 | 75,000 |
Powdered Metal Cored Bars | 2,000 | 1,200 | 50,000 |
Powdered Metal Solid Bars | 2,000 | 1,200 | 50,000 |
Powdered Metal Circular Discs | 2,000 | 1,200 | 50,000 |
Powdered Metal Plate | 1,600 | 1,000 | 40,000 |
Powdered Metal Iron Copper Solid Bar | 4,000 | 225 | 35,000 |
Powdered Metal Iron Copper Cored Bar | 4,000 | 225 | 35,000 |
Lube-Align Platinum Standard | 2,000 | 1,200 | 50,000 |
Lube-Align Platinum 2 Bolt Flanged | 2,000 | 1,200 | 50,000 |
Lube-Align Platinum 3 Bolt Flanged | 2,000 | 1,200 | 50,000 |
Lube-Align Platinum Bore Mounting | 2,000 | 1,200 | 50,000 |
Lube-Align Standard | 2,000 | 1,200 | 50,000 |
Lube-Align 2 Bolt Flanged | 2,000 | 1,200 | 50,000 |
Lube-Align 3 Bolt Flanged | 2,000 | 1,200 | 50,000 |
Lube-Align Bore Mounting | 2,000 | 1,200 | 50,000 |
Nylon Sleeve (Plain) Bearings | 400 | 360 | 3,000 |
Nylon Flanged Bearings | 400 | 360 | 3,000 |
Nylon Thrust Washers | 400 | 360 | 3,000 |
PTFE BJ2S Sleeve (Plain) Bearings | 1,100 | 400 | 30,000 |
PTFE BJ4S Sleeve (Plain) Bearings | 1,100 | 400 | 30,000 |
PTFE BJ5S Sleeve (Plain) Bearings | 800 | 400 | 20,000 |
PTFE BJ7S Sleeve (Plain) Bearings | 1,050 | 400 | 40,000 |
PTFE BJ2F Flanged Bearings | 1,100 | 400 | 30,000 |
PTFE BJ4F Flanged Bearings | 1,100 | 400 | 30,000 |
PTFE BJ5F Flanged Bearings | 800 | 400 | 20,000 |
PTFE BJ7F Flanged Bearings | 1,050 | 400 | 40,000 |
PTFE BJ2T Thrust Washers | 1,100 | 400 | 30,000 |
PTFE BJ4T Thrust Washers | 1,100 | 400 | 30,000 |
PTFE BJ5T Thrust Washers | 800 | 400 | 20,000 |
PTFE BJ2B Solid Bars | 1,100 | 400 | 30,000 |
PTFE BJ4B Solid Bars | 1,100 | 400 | 30,000 |
PTFE BJ5B Solid Bars | 800 | 400 | 20,000 |
PTFE BJ7B Solid Bars | 1,050 | 400 | 40,000 |
PTFE BJ Liner Bearings | 1,500 | 400 | 20,000 |
PTFE Composite BSF Sleeve (Plain) Bearings | 34,300 | 150 | 20,000 |
PTFE Composite BPT Sleeve (Plain) Bearings | 20,000 | 500 | 34,200 |
PTFE Composite Thrust Washers .074 | 15,000 | 150 | 10,000 |
PTFE Composite Thrust Washers .078 | 15,000 | 150 | 10,000 |
BU Sleeve (Plain) Bearings INCH | 36,250 | 1,000 | 51,000 |
BU Sleeve (Plain) Bearings METRIC | 36,250 | 1,000 | 51,000 |
VESPEL Sleeve (Plain) Bearings | 4,900 | 3,000 | 300,000 |
VESPEL Flanged Bearings | 4,900 | 3,000 | 300,000 |
VESPEL Thrust Bearings | 4,900 | 3,000 | 300,000 |