Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | KSR20 | |
| Bore diameter | d | 20 mm |
| Outside diameter | D | 47 mm |
| Width | B | 31 mm |
| Mass | ≈m | 0.26 kg |
Manufacturer Identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 419337 | |
| Brand | INA | |
| Base Type | KSR20 | |
| Old Designation | ["KSR 20.BO.08.10.18.08"] | |
| X Life Marking | n.r. |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Roller chain idler sprocket units KSR..-B0, sprocket made from steel or sintered iron | |
| Short Description | Roller chain idler sprocket unit |
Technical Data16 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 20 mm | |
| Outside Diamater (D) | 47 mm | |
| Locking Collar Total Width (B1) | 31 mm | |
| Number Of Teeth (Z) | 18 | |
| Locking Collar Width (B1) | 31 mm | |
| Thickness Of Sprocket (C1) | 7 mm | |
| Lower Tolerance (Nulld) | 0 mm | |
| Width Of Flats (W) | 3 mm | |
| Width, Outer Ring (C) | 14 mm | |
| Chamfer Width (C2) | 1.1 mm | |
| Tooth Set (P) | 0.5 in | |
| Outside Diameter Locking Device (D3) | 33 mm | |
| Upper Tolerance (Nulld) | 0.018 mm | |
| Tip Diameter (Gearing) (Dk) | 78.6 mm | |
| Outside Diameter Locking Collar/Locknut (D3) | 33 mm | |
| Pitch Circle Diameter (Gearing) (D0) | 73.1 mm |