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Bunting Bearings 1907-2007 100 YearsBunting Bearings LLC - Providing Quality Engineered Solutions Since 1907 - Bunting Bearings manufacture a complete range of Bearings and Cast Materials all of which are made to the highest standards to optimize your products performance
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PV Data Chart

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 ÷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:

3/4" 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 ÷ projected area (area = .750 x 1.0 = .75 sq. in.), or 90 lbs. ÷ .75 = 120 psi.

PV = 120 psi x 67 sfpm = 8040 PV.

Bunting Bearings PV Data Chart

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

All values are based on 72o room temperature and the standard lubricant for the bearing in question. All of the V’s (and therefore the PV’s) can be raised by special lubricating techniques.

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