Belt Conveyor Return Idler Steel Return Idler Return Roller

The Inner Structure of Roller
Roller is assembled with shaft, shell, housing, in seal, bearing, labyrinth seal, cover, protective cover and snap ring.
Seal Structure
Roller adopts non-contact labyrinth structure,
forming acomplex, winding and narrow maze between inner and outer seal part.
The maze is filled in high quality grease.
Outstanding performance of durable water proofing/dust proofing.
So rollers we produced can be rotated neatly with outstanding performance of water-proof and dust-proof.Bearing
Brand:SKF/ NSK/HRB/LYC/ZWZ ETC.
Roller adopt C3 deep groove radial ball bearing which adopts bidirectional seal structure
to improve theperformance of water-proof and dust-proofing.Shell, Shaft and Housing
Parameters of the tube and shaft rollers adopted accord with GB standard requirmenets.
The tolerance as radial jump, roundness, straightness and appearance surpass the strict requirements in GB standard.
The housing is produced by the cold-rolled plate drawing,
adopting both sides precise welding between housing and shell to guarantee the rollers strong and rigid.Size that we can do for rollerNo.Standard DiameterLength Range
(mm)Bearing Type
Min-MaxShell Thickness of RollermmInch163.52 1/2150-3500203 2043.0mm-4.0mm2763150-35002043.0mm-4.5mm3893 1/3150-3500204 2053.0mm-4.5mm41024150-3500204 205 206 3053.2mm-4.5mm51084 1/4150-3500204 205 206 305 3063.5mm-4.5mm61144 1/2150-3500204 205 206 305 3063.5mm-4.5mm71275150-3500204 205 206 305 3063.5mm-5.0mm81335 1/4150-3500204 205 206 207 305 3063.5mm-5.0mm91405 1/2150-3500205 206 207 305 306 3073.5mm-5.0mm101526150-3500205 206 207 305 306 307 3084.0mm-5.0mm111596 1/4150-3500205 206 207 305 306 307 3084.0mm-5.0mm121656 1/2150-3500206 207 305 306 307 3084.5mm-6.0mm13177.87150-3500207 306 307 308 3094.5mm-6.0mm14190.77 1/2150-3500207 306 307 308 309 3104.5mm-7.0mm151947 5/8150-3500207 306 307 308 309 3104.5mm-8.0mm162198 5/8150-3500308 309 310 3124.5mm-8.0mm
Material List of RollerMaterial ListNo.NameMaterial1Shell
(Including Bearing Housing)Q235-A
(Carbon Steel)2Shaft20#
(Carbon Steel)3BearingFinished Product4Bottom SealNylon 65Inner SealNylon 10106Outer SealNylon 10107Sealing Cover08F
(Carbon Steel Galvanized)8Protective CoverABS Resin Craft9Snap RingFinished Product
Pictures ShowPacking Picture