Sympthoms of rotary drums typical problems
Increased temeprature of roller bearings
Potential reason (proposed audit/service):
- error of support system axis shape
(A(T) or A+)
- incorrect skews of support rollers
(A(A.11, T) or A+(T))
- bend of shell axis
(B++, B+(T) or B(T))
- axial run-out of the rings
(B+(T) or B(T))
- incorrect lubrication
(individual selection)
Crack of the shell
Potential reasons (proposed audit/service):
- error of support system axis shape
(A(T) or A+)
- elastic ovalization of the shell (excessive underring clearance)
(A, B.7(T))
- bend of shell axis
(B++, B+,(T), or B(T))
- corrosion
(E.1(T))
Crack of the support roller shaft
Potential reasons (proposed audit/service):
- error of support system axis shape
(A(T) or A+)
- bend of shell axis
Excessive wear of the roller/ring raceway
Potential reasons (proposed audit/service):
- error of support system axis shape
(A(T) or A+)
- axial run out of the rings
(B+(T) or B(T))
- incorrect raceway lubrication
(individual selection)
- shape errors of the rollers/rings raceways
(A.12)
Excessive wear of the ring stop-blocks
Potential reasons (proposed audit/service):
- incorrect skews of support rollers
(A(A.11. T) or A+(T))
- elastic ovalization of the shell
(A, B.7(T))
- axial run out of the rings
(B+(T) or B(T))
- lack or incorrect lubrication
Excessive wear of the under-ring pads
Potential reasons (proposed audit/service):
- elastic ovalization of the shell (excessive under ring clearance)
(A,B.7(T))
- lack or incorrect lubrication
(individual selection)
Excessive wear of the thrust roller
Potential reasons (proposed audit/service):
- incorrect skews of support rollers
(A(A.11. T) or A+(T))
- wrong position of thrust roller
Excessive wear of the gear teeth
Potential reasons (proposed audit/service):
- error of the support system axis shape
- incorrect skews of support rollers
(A(A.11. T) or A+(T))
- bend of shell axis
- incorrect lubrication
- misalignment of drive section components
(D.1(T))
- damage to the elements of drive section
Falling out of the lining
Potential reasons (proposed audit/service):
- error of support system axis shape
(A(T) or A+)
- excessive under ring clearance
- excessive elastic ovality of the shell
(A, B.7(T))
- bend of shell axis
(B++, B+(T) or B(T))
- axial run-out of the rings
Vibration on drive section / support rollers
Potential reasons (proposed audit/service):
- misalignment of the drive section elements
(D.1(T))
- damage of the drive section components
(C.1(T) &/or D.2(T))
- shape errors of the rollers and / or rings raceways
(A.12)
- bend of shell axis
(B++, B+(T) or B(T))
Gaps between rollers and rings raceways
Potential reasons (proposed audit/service):
- incorrect skews of support rollers
(A(A.11. T) or A+(T))
- bend of shell axis
(B++, B+(T) or B(T))
- axial run out of the rings
(B+(T) or B(T))
- shape errors of support roller and/or ring raceway
(A.12)
Instability of axial displacements of an object
Potential reasons (proposed audit/service):
- incorrect skews of support rollers
(A(A.11. T) or A+(T))
- missalignment of drive section components
(D.1(T))
- axial run out of the rings
(B+(T) or B(T))
Increased power consumption by the drive
Potential reasons (proposed audit/service):
- error of support system axis shape
- incorrect skews of support rollers
(A(A.11. T) or A+(T))
- bend of shell axis
(B++, B+(T) or B(T))
- damage of drive section elements
(C.1(T) &/or D.2(T))
- shape errors of support roller and/or ring raceway
(A.12)