Abstract: Disclosed are adjustably radially turnable shaft-guards for rotatable shafts and shaft-assemblies which extend from a stationary first-housing to a stationary second-housing. The shaft-guard, which surrounds the shaft or shaft-assembly, has telescopically associated tubes maintained in non-turning condition by yokes attached to said housing whenever the shaft or shaft-assembly is being powered thereby precluding injury to personnel. The telescopically associated tubes are slotted and by virtue of removably secured turning control means the shaft-guard slots can be rotated to align with the lubricatable zerks of the de-powered and stopped shaft or shaft-assembly.