Role of wheel nut:

   Hub nuts are special nuts used to fix the outer hub of the car. Because of the uncertainty of the car nut, there is no national standard for the car nut, but the general model and the ordinary hexagon nut are roughly, there are also various models in the middle of M12-M42. Compared with regular hexagonal nut, hub nut generally compared with the same specifications of the hexagonal nut gb thicker, and generally for fine thread, thread pitch is roughly 1.5 mm and 2.0 mm, for equilateral hexagon shape and hexagonal nut, but at one end of the nut has a taper, the taper inside some there will be a step to accommodate the nylon washer for locking, some side has no steps! And some hub nuts have a flange in the conical part, and the general external flange, the internal will have a step to place the nylon washer, and the general roughly hexagon nuts with conical!

1	168000340016	Adjust the gasket
2	DZ91129320007	The shaft head nut
3	188000420022	baffle
4	188000420003	Round the sun
5	188000440010	Additional gaskets
6	190003933300	An elastic retainer for the shaft
9	1160-2400062	Cylindrical pin 190003901704
10	188000420012	O-ring seal
11	199100420003	Drive flange Assembly
	PF19910042000301	Round edge assembly
12	DZ9112340214	End cover
13	DZ9112346116	Hexagonal plug with cylindrical head
14	190003802511	Hexagon head bolt  Q150B1018
16	190003825513	Ten grooved disc head screws  Q2541020
17	199012340075	Planetary wheel gasket
18	199000420050	Planetary wheel (Z=16)
19	1-99-934-013	Needle roller bearing
20	188000420024	The planets wheel
21	190003330148	Steel ball 8.0
22	Q151C1265TF2	Hex head bolts - fine teeth
23	188000410069	Needle roller bearing NK55/35
24	190003936071	circlip Q43870
25	190003078556	Shaft seal
27	188000410102	Locking pin
28	188000410109	tube
29	DZ9100410063	Shaft head (left)
	DZ9100410064	Shaft head (right)
30	140600060011	O-ring seal
31	188000420028	Every ring
32	2190-3103023	Shaft seal
33	190003326443	Tapered roller bearing 32020
34	199000410103	Wheel bolt
35	DZ9100420029	Front wheel hub
36	190003884160	Wheel nut
37	190003326445	Tapered roller bearing32022
38	188000420014	Retaining ring
39	199000420049	The ring gear
40	199112340021	Gear ring support assembly
41	188000420030	Bearing washer
42	188000420034	Thrust pad ring
43	168000340015	Thrust lock plate