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One-way turning roller, 1, one-way turning, no return., 2, max load capacity,, 3, 50,000 hours' long lifetime - details see: https://www.machineto.com/one-way-turning-roller-10197144

One-way Turning Roller

Roller inner structure and material:

(a)Shaft end: Both ends of tube are simultaneously machined and chamfered
(b) Shaft: Bright drawn steel to required bearing tolerance
(c) Seals: Grease retaining inner seal with multi-stage labyrinth and retention cap with outboard rubbing flinger seal
(d) Bearing: Single and double row deep groove ball bearing 2RZ and 2Z with C3 clearance

NO.	Standard Diameter		Length Scope (mm)	Bearings Type Min~Max	Idler's Shell Wall Thickness
	mm	Inch
1	63.5	2 1/2	150-3500	203 204	3.0mm~4.0 mm
2	76	3		204	3.0mm~4.5 mm
3	89	3 1/3		204 205	3.0mm~4.5 mm
4	102	4		204 205 206 305	3.2mm~4.5 mm
5	108	4 1/4		204 205 206 305 306	3.5mm~4.5 mm
6	114	4 1/2		204 205 206 305 306	3.5mm~4.5 mm
7	127	5		204 205 206 305 306	3.5mm~5.0 mm
8	133	5 1/4		204 205 206 207 305 306	3.5mm~5.0 mm
9	140	5 1/2		205 206 207 305 306 307	3.5mm~5.0 mm
10	152	6		205 206 207 305 306 307 308	4.0mm~5.0 mm
11	159	6 1/4		205 206 207 305 306 307 308	4.0mm~5.0 mm
12	165	6 1/2		206 207 305 306 307 308	4.5mm~6.0 mm
13	177.8	7		207 306 307 308 309	4.5mm~6.0 mm
14	190.7	7 1/2		207 306 307 308 309 310	4.5mm~7.0 mm
15	194	7 5/8		207 306 307 308 309 310	4.5mm~8.0 mm
16	219	8 5/8		308 309 310 312	4.5mm~8.0 mm

we can produce according to the customers requirement.