Grooved ball bearing for Puch E50 1-speed engines. On the clutch side, this special bearing (11 mm inner ring) is fitted to crankshafts with a small oil seal seat.
Also known as the "new model" (corresponding crankshaft shown in Figure 3).
Cost-effective version. You can find a higher-quality alternative in the accessories section below.
Ø outer: 40 mm
Ø inner: 17 mm
Width of outer ring: 12 mm
Width of inner ring: 11 mm
Original spare part number: 900.6233
Branded product from the manufacturer CUBE Bearings.
| Bearing type | Deep groove ball bearing |
| Stock number | 6203 |
| Inner ring width | 11 mm |
| Manufacturer | CUBE |
| Bearing clearance | CN (standard) |
| Bearing cage | Sheet steel cage ball-guided |
| Groove ring | Yes |
| Width | 12 mm |
| Ø inside | 17 mm |
| Ø outside | 40 mm |
| Puch | E50 |
Accessories & related products
NTN 6203 NR C3 ball bearing 17/40/12(11) with outer ring (new model) | Puch E50
Stock number: 6203 · Inner ring width: 11 mm · Manufacturer: NTN · Bearing clearance: C3 · Bearing cage: Sheet steel cage ball-guided · Groove ring: Yes · Bearing type: Deep groove ball bearing · Width: 12 mm · Ø inside: 17 mm · Ø outside: 40 mm
21,10 EUR
Explore categories from Warehouse
Moped fans also bought
Not so nice 
Main stand black (budget) | Puch Maxi S, P1 / X30 NS, NL, NG
Total height: 220 mm · Color: black · Surface: varnished · Material: Steel · Stand base - center mount (A): 207 mm · Total width of stand base (B): 217 mm · Wide receptacle (C): 66 mm · Ø Receptacle (D): 18 mm · Spring nipple distance - center pivot axis (E): 75 mm · Wide upright foot (F): 20 mm · Wide upright foot (F): 50 mm
23,40 EUR
Oil seal NBR 17/40/7 A DUO | Puch E50
Temperature resistance (min.): -30 - 100 °C · Shaft seal type: A DUO - With rubberized outer casing / two sealing lips. · Ø inside: 17 mm · Manufacturer: Puch · Material: NBR · Surface: rubberized · Ø outside: 40 mm · Width: 7 mm · Area of application: Standard
6,00 EUR
swiing® revival nut / spring washer clutch E50 | Puch Maxi
Manufacturer: swiing® revival parts · Surface: galvanized (blue) · Nut type: Hexagon nut 0.8D · Material: Steel · Drive: External hexagon · Thread type: MF10x1 (fine pitch thread) · Nominal diameter (thread): 10 mm · Height: 8 mm · Width across flats: 17 mm
4,60 EUR
NTN 6203 Ball bearing 17/40/12
Bearing type: Deep groove ball bearing · Stock number: 6203 · Inner ring width: 12 mm · Manufacturer: NTN · Ball bearing closed: No · Bearing clearance: CM (special/noise-reduced) · Bearing cage: Sheet steel cage ball-guided · Material: Steel · Width: 12 mm · Ø inside: 17 mm · Ø outside: 40 mm
7,65 EUR
swiing® revival gasket gearbox cover engine 1 mm | Puch E50
Manufacturer: swiing® revival parts · Color: sand-colored · Material: Sealing paper · Number of components: 1 pcs · Thickness: 1 mm · Ø inside: 106 mm · Ø outside: 116 mm · Number of fixing points: 4 pcs · Alternative version of the Puch OEM number: 349.1.10.349.1
4,60 EUR
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
