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J Section Pulleys
Displaying 1 to 25 (of 72 products)
Average Rating (2 Reviews)
112J04 Tapered Bore Polyvee Belt Pulley 112mm Pitch Diameter 4 Grooves
Equivalent to: PYB112J4
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 4
Pitch Diameter: 112mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1610 Tapered Locking Bushes
Grooves: 4
Pitch Diameter: 112mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1610 Tapered Locking Bushes
Average Rating (7 Reviews)
50J04 Pilot Bore Polyvee Belt Pulley 50mm Pitch Diameter 4 Grooves
Equivalent to: PYB50J4
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 4
Bore: 12mm
Pitch Diameter: 50mm
Item Type: Pilot Bore
J Section Poly V-Belts
Grooves: 4
Bore: 12mm
Pitch Diameter: 50mm
Item Type: Pilot Bore
J Section Poly V-Belts
Not Rated Yet
45J08 Pilot Bore Polyvee Belt Pulley 45mm Pitch Diameter 8 Grooves
Equivalent to: PYB45J8
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 8
Bore: 12mm
Pitch Diameter: 45mm
Item Type: Pilot Bore
J Section Poly V-Belts
Grooves: 8
Bore: 12mm
Pitch Diameter: 45mm
Item Type: Pilot Bore
J Section Poly V-Belts
Not Rated Yet
40J08 Pilot Bore Polyvee Belt Pulley 40mm Pitch Diameter 8 Grooves
Equivalent to: PYB40J8
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 8
Bore: 12mm
Pitch Diameter: 40mm
Item Type: Pilot Bore
J Section Poly V-Belts
Grooves: 8
Bore: 12mm
Pitch Diameter: 40mm
Item Type: Pilot Bore
J Section Poly V-Belts
Not Rated Yet
40J12 Pilot Bore Polyvee Belt Pulley 40mm Pitch Diameter 12 Grooves
Equivalent to: PYB40J12
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 12
Bore: 12mm
Pitch Diameter: 40mm
Item Type: Pilot Bore
J Section Poly V-Belts
Grooves: 12
Bore: 12mm
Pitch Diameter: 40mm
Item Type: Pilot Bore
J Section Poly V-Belts
Not Rated Yet
50J08 Pilot Bore Polyvee Belt Pulley 50mm Pitch Diameter 8 Grooves
Equivalent to: PYB50J8
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 8
Bore: 12mm
Pitch Diameter: 50mm
Item Type: Pilot Bore
J Section Poly V-Belts
Grooves: 8
Bore: 12mm
Pitch Diameter: 50mm
Item Type: Pilot Bore
J Section Poly V-Belts
Not Rated Yet
40J16 Pilot Bore Polyvee Belt Pulley 40mm Pitch Diameter 16 Grooves
Equivalent to: PYB40J16
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 16
Bore: 12mm
Pitch Diameter: 40mm
Item Type: Pilot Bore
J Section Poly V-Belts
Grooves: 16
Bore: 12mm
Pitch Diameter: 40mm
Item Type: Pilot Bore
J Section Poly V-Belts
Not Rated Yet
45J12 Pilot Bore Polyvee Belt Pulley 45mm Pitch Diameter 12 Grooves
Equivalent to: PYB45J12
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 12
Bore: 12mm
Pitch Diameter: 45mm
Item Type: Pilot Bore
J Section Poly V-Belts
Grooves: 12
Bore: 12mm
Pitch Diameter: 45mm
Item Type: Pilot Bore
J Section Poly V-Belts
Not Rated Yet
45J16 Pilot Bore Polyvee Belt Pulley 45mm Pitch Diameter 16 Grooves
Equivalent to: PYB45J16
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 16
Bore: 12mm
Pitch Diameter: 45mm
Item Type: Pilot Bore
J Section Poly V-Belts
Grooves: 16
Bore: 12mm
Pitch Diameter: 45mm
Item Type: Pilot Bore
J Section Poly V-Belts
Not Rated Yet
56J08 Tapered Bore Polyvee Belt Pulley 56mm Pitch Diameter 8 Grooves
Equivalent to: PYB56J8
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 8
Pitch Diameter: 56mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1108 Tapered Locking Bushes
Grooves: 8
Pitch Diameter: 56mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1108 Tapered Locking Bushes
Not Rated Yet
50J12 Pilot Bore Polyvee Belt Pulley 50mm Pitch Diameter 12 Grooves
Equivalent to: PYB50J12
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 12
Bore: 12mm
Pitch Diameter: 50mm
Item Type: Pilot Bore
J Section Poly V-Belts
Grooves: 12
Bore: 12mm
Pitch Diameter: 50mm
Item Type: Pilot Bore
J Section Poly V-Belts
Not Rated Yet
56J12 Tapered Bore Polyvee Belt Pulley 56mm Pitch Diameter 12 Grooves
Equivalent to: PYB56J12
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 12
Pitch Diameter: 56mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1108 Tapered Locking Bushes
Grooves: 12
Pitch Diameter: 56mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1108 Tapered Locking Bushes
Not Rated Yet
50J16 Pilot Bore Polyvee Belt Pulley 50mm Pitch Diameter 16 Grooves
Equivalent to: PYB50J16
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 16
Bore: 12mm
Pitch Diameter: 50mm
Item Type: Pilot Bore
J Section Poly V-Belts
Grooves: 16
Bore: 12mm
Pitch Diameter: 50mm
Item Type: Pilot Bore
J Section Poly V-Belts
Not Rated Yet
63J08 Tapered Bore Polyvee Belt Pulley 63mm Pitch Diameter 8 Grooves
Equivalent to: PYB63J8
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 8
Pitch Diameter: 63mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1108 Tapered Locking Bushes
Grooves: 8
Pitch Diameter: 63mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1108 Tapered Locking Bushes
Not Rated Yet
63J12 Tapered Bore Polyvee Belt Pulley 63mm Pitch Diameter 12 Grooves
Equivalent to: PYB63J12
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 12
Pitch Diameter: 63mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1108 Tapered Locking Bushes
Grooves: 12
Pitch Diameter: 63mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1108 Tapered Locking Bushes
Not Rated Yet
71J08 Tapered Bore Polyvee Belt Pulley 71mm Pitch Diameter 8 Grooves
Equivalent to: PYB71J8
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 8
Pitch Diameter: 71mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1108 Tapered Locking Bushes
Grooves: 8
Pitch Diameter: 71mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1108 Tapered Locking Bushes
Not Rated Yet
56J16 Pilot Bore Polyvee Belt Pulley 56mm Pitch Diameter 16 Grooves
Equivalent to: PYB56J16
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 16
Bore: 12mm
Pitch Diameter: 56mm
Item Type: Pilot Bore
J Section Poly V-Belts
Grooves: 16
Bore: 12mm
Pitch Diameter: 56mm
Item Type: Pilot Bore
J Section Poly V-Belts
Not Rated Yet
63J16 Pilot Bore Polyvee Belt Pulley 63mm Pitch Diameter 16 Grooves
Equivalent to: PYB63J16
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 16
Bore: 12mm
Pitch Diameter: 63mm
Item Type: Pilot Bore
J Section Poly V-Belts
Grooves: 16
Bore: 12mm
Pitch Diameter: 63mm
Item Type: Pilot Bore
J Section Poly V-Belts
Not Rated Yet
71J12 Tapered Bore Polyvee Belt Pulley 71mm Pitch Diameter 12 Grooves
Equivalent to: PYB71J12
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 12
Pitch Diameter: 71mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1108 Tapered Locking Bushes
Grooves: 12
Pitch Diameter: 71mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1108 Tapered Locking Bushes
Not Rated Yet
75J08 Tapered Bore Polyvee Belt Pulley 75mm Pitch Diameter 8 Grooves
Equivalent to: PYB75J8
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 8
Pitch Diameter: 75mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1108 Tapered Locking Bushes
Grooves: 8
Pitch Diameter: 75mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1108 Tapered Locking Bushes
Not Rated Yet
71J16 Tapered Bore Polyvee Belt Pulley 71mm Pitch Diameter 16 Grooves
Equivalent to: PYB71J16
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 16
Pitch Diameter: 71mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1215 Tapered Locking Bushes
Grooves: 16
Pitch Diameter: 71mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1215 Tapered Locking Bushes
Not Rated Yet
80J12 Tapered Bore Polyvee Belt Pulley 80mm Pitch Diameter 12 Grooves
Equivalent to: PYB80J12
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 12
Pitch Diameter: 80mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1610 Tapered Locking Bushes
Grooves: 12
Pitch Diameter: 80mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1610 Tapered Locking Bushes
Not Rated Yet
85J12 Tapered Bore Polyvee Belt Pulley 85mm Pitch Diameter 12 Grooves
Equivalent to: PYB85J12
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 12
Pitch Diameter: 85mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1610 Tapered Locking Bushes
Grooves: 12
Pitch Diameter: 85mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1610 Tapered Locking Bushes
Not Rated Yet
75J12 Tapered Bore Polyvee Belt Pulley 75mm Pitch Diameter 12 Grooves
Equivalent to: PYB75J12
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 12
Pitch Diameter: 75mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1610 Tapered Locking Bushes
Grooves: 12
Pitch Diameter: 75mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1610 Tapered Locking Bushes
Not Rated Yet
80J08 Tapered Bore Polyvee Belt Pulley 80mm Pitch Diameter 8 Grooves
Equivalent to: PYB80J8
J Section Polyvee Belt Pulleys: These pulleys are carefully manufactured from high-quality black phosphatized steel. We can supply these pulleys in a wide range of sizes, either pilot bored or [show more]...
Brand / Quality: Major Brand - High Quality
Grooves: 8
Pitch Diameter: 80mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1610 Tapered Locking Bushes
Grooves: 8
Pitch Diameter: 80mm
Item Type: Tapered Bore
Key Steel
J Section Poly V-Belts
1610 Tapered Locking Bushes
J Section Pulleys
J section pulleys are sheaves with a grooved wheel that accommodates a J-section V-belt in belt-driven machinery. They are used for power transmission in a multitude of electrical, petrol, diesel or even mechanical machinery, including lawnmowers, power tools, farm equipment, industrial conveyors, wood lathes, vehicles, and exercise equipment. The trapezoidal cross-sections of their V-belts make them suitable for high speed, high ratio, high torque and high tension applications, and they provide smooth running and low noise operation.
Belts with multiple longitudinal ribs are called poly-V-belts and these transmit more power from a smaller diameter pulley. Sheaves machined for as many as 20 ribs exist, although 4-8 ribs are much more common. On J-section sheaves and belts, the pitch of grooves and ribs is 2.34mm or 0.092". Other sections you may encounter are K, L and M, with pitches of up to 9.4mm. We are happy to source for you any type or size of pulley or belt you require, and we have a comprehensive range of matching v-belts available in various sections, lengths and materials.
Poly-V drive systems are low maintenance and able to transmit 600kW of power using a single belt, with up to 98% efficiency. Up to 20:1 speed ratios are easily attainable and as much as 60:1 with some specially designed pulleys. Switching to smaller diameter poly-V drives is also advantageous for noise reduction.
J section pulleys are usually made from surface-treated cast iron, but they are also available in stainless steel and aluminium.
Fitting
J section pulleys have either a tapered bore or pilot bore. Tapered bore pulleys are not intended for tapered shafts, rather it denotes that they are fitted using tapered locking bushes onto conventional parallel shafts. Pilot bore pulleys are so called because they come with a basic pilot hole to assist machining to your exact shaft requirements, and this is the kind more often used for tapered shafts or other unusual shafts with small or non-standard diameters or keyways.
Tapered bore pulleys are easily fitted, without additional machining, onto a range of shaft diameters with standard keyways, whether imperial or metric. Split tapered locking bushes adapt their bore down to the shaft. The bush is usually mounted into the pulley with two grub screws (or sometimes an allen key), which compress the bush into the pulley and clamp it to the shaft as they're tightened.
Typically, the bush has two plain opposing holes, and often a third tapped hole in line with the split. The holes align with those in the pulley and the bush slips easily in when correctly orientated. Don't fully tighten the grub screws until the assembly is located on the shaft. If present, the unoccupied tapped hole is there to aid removal. Extract the two grub screws but re-insert one into this hole in line with the split. As it's tightened, the bush rises from the pulley.
Purchase online from Simply Bearings for best advice, immediate dispatch, and impeccable customer service.