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	3.2 Trough idler (45°)
	
	
	
	
	3.3 Forward-tile trough idler (35°)
	
	
	
	
	3.4 Transition idler (10°)
	
	
	
	
	3.5 Transition idler (20°)
	
	
	
	
	3.6 Transition idler (30°)
	
	
	
	
	3.7 Buffer idler (30°)
	
	
	
	
	3.8 Buffer idler (45°)
	
	
	
	
	3.9 Upper friction self-aligning idler
	
	
	
	
	3.10 Upper taper self-aligning idler
	
	
	
	
	3.11 Upper friction flat self-aligning idler
	
	
	
	
	3.12 Parallel upper idler
	
	
	
	IV. Return idler
	
	4.1 Parallel lower idler
	
	
	
	
	4.2 V-shaped idler
	
	
	
	
	4.3 V-shaped forward-tilt idler
	
	
	
	
	4.4 Parallel comb idler
	
	
	
	
	4.5 V-shaped comb idler
	
	
	
	
	4.6 Lower friction self-aligning idler
	
	
	
	
	4.7 Inversed V-shaped idler
	
	
	
	
	4.8 Lower taper self-aligning idler
	
	
	
	
	4.9 Screw idler
	
	
	
	
	 V. Roller of idler
	
	5.1 DT II general-type roller
	
	
	
	
	
	
	
	5.2 DT II buffer roller
	
	
	
	
	
	5.3 DT II comb roller
	
	
	
	
	
	5.4 DT II screw roller
	
	
	
	
	
	5.5 DT II upper taper self-aligning idler
	
	
	
	
	
	5.6 DT II lower taper self-aligning idler
	
	
	
	
	5.7 DT II friction self-aligning idler
	
