| Customization: | Available |
|---|---|
| Material: | Carbon Steel |
| Surface Treatment: | Baking Paint |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
| Payment Methods: |
|
|---|---|
| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
|---|
| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
|---|
Suppliers with verified business licenses
Audited by an independent third-party inspection agency



Technical Parameters | ||||
Standard Diameter | Length scope ( mm) | Bearings Type (Min~Max) | Idler's Shell Wall Thickness | |
mm | Inch | |||
63.5 | 2 1/2 | 150~3500 | 204 | 3.0mm~3.75mm |
76 | 3 | 150~3500 | 204 205 | 3.0mm~4.0mm |
89 | 3 1/3 | 150~3500 | 204 205 | 3.0mm~4.0mm |
102 | 4 | 150~3500 | 204 205 305 | 3.5mm~4.0mm |
108 | 4 1/4 | 150~3500 | 204 205 305 306 | 3.5mm~4.0mm |
114 | 4 1/2 | 150~3500 | 205 206 305 306 | 3.5mm~4.5mm |
127 | 5 | 150~3500 | 204 205 305 306 | 3.5mm~4.5mm |
133 | 5 1/4 | 150~3500 | 205 206 207 305 306 | 3.5mm~4.5mm |
140 | 5 1/2 | 150~3500 | 205 206 207 305 306 | 3.5mm~4.5mm |
152 | 6 | 150~3500 | 205 206 207 305 306 307 308 | 4.0mm~4.5mm |
159 | 6 1/4 | 150~3500 | 205 206 207 305 306 307 308 | 4.0mm~4.5mm |
165 | 6 1/2 | 150~3500 | 207 305 306 307 308 | 4.5mm~6.0mm |
177.8 | 7 | 150~3500 | 207 306 307 308 309 | 4.5mm~6.0mm |
190.7 | 7 1/2 | 150~3500 | 207 306 307 308 309 | 4.5mm~6.0mm |
194 | 7 5/8 | 150~3500 | 207 307 308 309 310 | 4.5mm~6.0mm |
219 | 8 5/8 | 150~3500 | 308 309 310 | 4.5mm~6.0mm |
raw materials and specifications | |
Axle(shaft) | cold-draw steel ST ST37DINI7100,E24 AFNOR NFA 35501. |
Rod | 2 0.2 25.2 30.2 40.2 lSO hll accuracy fine polished to 20,25, 30, 40 levels on the universal sealed bearing packaging area. The precision attained isISO h6. |
Steel roll | welded with DlN2394 standard, components are ST37 to fit DlN17100 standard. |
Bearing housing | cold press working fit lSO M7 accuracy deep press steel with raw material fit DIN1623-1624 standard. |
Inner seal circle | lip-lining sealed, component is made of NYLON6 (ISO Pa6). |
Bearing | trough type, deep groove ball bearing (Wind age level C3) DlN 6263 series. |
Labyrinth seal circle | 3 troughs, component is made of NYLON6 (ISO Pa6). |
Housing/cover | deep press steel fit DlNl623-1624 standard. |
Outer seal circle | sliding rubber ring with V shape, components are nitrosation rubbers which are long lasting, wear resistant, and antioxidant. |
Function of protecting cover | used to protect the roller from axial vibration, made by copper alloy which is anticorrosive. |
Lubricating oil | to ensure the roller bearing is lubricated continuously, using 2, 3 grade long-lasting lithium grease. |

















