| 21. | They had lots of rubber parts such as idlers and drive belts which would perish and wear out.
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| 22. | In 1935, the first tests for the production of rayon for tyres and driving belts were performed.
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| 23. | A timing belt is usually a toothed belt-- a drive belt with teeth on the inside surface.
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| 24. | Instead of a drive chain the 1125R uses a drive belt, which does not require lubrication or adjustment.
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| 25. | Furthermore, over time the drive belt can wear or lose mix generally prefer to use direct-drive turntables.
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| 26. | Power was transmitted to the rotors by a drive belt that linked both rotors and spun them in opposite directions.
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| 27. | It is a good idea to keep spare belts on hand, because a broken drive belt will cripple the blower.
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| 28. | The cooling fan and dynamo were built integrally with the one-piece crankshaft, removing the need for drive belts.
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| 29. | The manufacture of PowerGrip drive belts was relocated to the former Arrol-Johnston factory at Heathhall, Dumfries around 1970.
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| 30. | On some escalators the motion of the handrail is noticeably uneven, which could be due to the drive belt slipping.
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