U-groove roller polyamide 6G 150×50 mm for 25 mm pipe (R=12.5 mm), bore 25 mm with keyway

U-groove roller made of polyamide 6G with keyway and circumferential U-groove tread contour for secure guidance on a tube with Ø 25 mm. The bore has a hub groove to DIN 6885 and can therefore be connected to a shaft in a torque-resistant manner – for driven rollers and conveying functions. Polyamide 6G is a high-strength, wear-resistant technical plastic with low weight, quiet running and gentle action on the mating surface. Made to order.

Technical data

• Outer diameter: 150 mm
• Overall width: 50 mm
• Tread width: 50 mm
• Bore diameter: 25 mm, fit H7
• Hub groove: 8 mm wide, 3.3 mm deep, fit JS9 – keyway to DIN 6885
• Suitable for tube Ø: 25 mm (R=12.5 mm)
• Load capacity: 880 kg
• Material of wheel and tread: Polyamide 6G (PA6G), natural colour
• Temperature range: -30 °C to +80 °C

Keyway instead of ball bearing

This version does not run on ball bearings, but sits in a torque-resistant manner on the shaft. The hub groove to DIN 6885 accepts a key and thus transmits the torque between shaft and roller. Typical for driven conveyor lines, deflection pulleys on shafts and all applications in which the roller should rotate with the shaft rather than run freely. If the roller is required to run freely instead, the version with ball bearings is the right choice.

Properties of polyamide 6G

• High strength with low weight
• Very good abrasion resistance and wear resistance
• Quiet running compared with steel on steel
• Gentle on the steel mating surface (tube)
• Resistant to oils, greases and many chemicals
• Electrically insulating

Areas of application

U-groove rollers made of polyamide 6G with keyway are used where the roller is driven via a shaft or must sit in a torque-resistant manner: conveyor systems in mechanical engineering, special-purpose machinery, overhead conveyors and noise-sensitive applications.

Made to order. For applications with direct food contact, please enquire separately about a food-grade version.