Bearings for NSU
An important element of design in the engine and
other parts of the car is the ball bearing, and also the
needle bearing and tapered roller bearing.
Below is a list (catalog FAG) of all bearings,
used in all cars and the motorcycle NSU Maxi.
When you open a single row deep groove ball bearing carefully, you can ask yourself:
A. how they make the rings and balls;
B. How they get the balls between the outer and inner ring!
Answer: read it below.
Assembling the balls
Bearing 6205.C3 - 25 x 52 x 15 mm
inner ring 25 x 33,5 mm, outer ring 52 x 43 mm and 9 balls d= 8 mm.
The inner ring is placed against the outer ring.
In the open space down 8 balls (Fig. 1), then the ninth ball in the middle of the 8 balls and the inner ring is pushed against the outer ring pressed just above the center of the outer ring.
With some force (A), the inner ring is pressed to the middle (Fig. 2).
In the film below this important issue is not in pictures. Then the balls are evenly divided and a cage is fitted, usually greased and most of the models seal coated.
Overview ball bearings, tapered roller bearings and needle bearings for all NSU cars
NSU Prinz I, II E 20 HP 1958-1960
NSU Prinz III 30 HP 1959-1960
NSU Sport Prinz 30 HP
NSU Prinz III 23 HP
NSU Prinz 4, 4L/S 30 HP |
| Position |
Code |
| Front wheels inner |
6205.C3 |
| Front wheels outer |
6203.C3 |
Crank shaft
(from March 1963)
|
6008.C3
6008.C4
6205.C3 |
| Eccentric shaft |
K38x43x17 (DÜR) |
| Cam shaft |
6201 |
| Clutch drive |
K25x29x13 (DÜR)
K30x35x13 (DÜR)
K32x37x13 (DÜR) *
V2-10544 (INA) * |
Clutch withdrawal
(from Dec. 1961) |
7301B
6301.2RS |
Transmission (only for Prinz I, II E
Main shaft |
6205.C3
K32x39x18 (DÜR) |
| Transmission (for Prinz III, 4 and Sport Prinz |
C129 (STAR), (411000501) |
Differential
(from March 1963) |
6006.C3
6006.C4 |
| Rear wheels inner |
6005 |
| Rear wheels outer |
6205 |
| * Prinz III 23 HP., Sport Prinz and Prinz 4 |
NSU 1000, 1000 L/S 43 HP 1964-1967
NSU 1000 TT 55 HP 1965-1967
NSU 1000, 1000 C 40 HP 1967->
NSU 1000 TTS, 1200 TT 70/65 HP 1967->
|
| Position |
Code |
| Front wheels inner |
6205.C3 |
| Front wheels outer |
6203.C3 |
Steering
|
DHK2216 (DÜR) |
| Dynamo |
6202 |
| Clutch spigot |
6000.2RS.C3.K63 |
Clutch withdrawal (to June 1965)
(from July to Aug. 1965) (E681300513)
(from Sept. 1965) |
S1010 (STAR)
6005.2RS.C3.K63 |
| Transmission: |
|
Drive shaft
(from July 1966) |
510254, 6007
6007.C3 |
| Main shaft front |
K35x42x16 (DÜR) |
| Main shaft rear |
6206N.C3 |
| Speed gears |
K40x45x13 (DÜR)
K40x45x17 (DÜR) |
| Lay shaft front |
K25x33x24 (DÜR) |
| Lay shaft rear |
K25x29x17 (DÜR) |
| Bevel pinion |
6306
DNK30/20 (DÜR) |
| Differential |
16014.C3 |
| Rear wheels inner |
6205.C3 |
Rear wheels outer
(from Sept. 1965) |
6205.C3
6205RS.C3 |
NSU Typ 110 53 HP 1965-1967
NSU Typ 110 S/SC 60 HP 1966-1967
NSU 1200, 1200 C 55 HP 1967->
|
| Position |
Code |
| Front wheels inner |
KL44649 + KL44610 |
| Front wheels outer |
KLM11749 + KLM11710 |
| Clutch spigot |
6000.2RS.C3.K63 |
| Clutch withdrawal |
6005.2RS.C3.K63 |
| Transmission: |
|
Drive shaft
(from July 1966) |
510254, 6007
6007.C3 |
| Main shaft front |
K35x42x16 (DÜR) |
| Main shaft rear |
6206N.C3 |
| Speed gears |
K40x45x13 (DÜR)
K40x45x17 (DÜR) |
| Lay shaft front |
K25x33x24 (DÜR) |
| Lay shaft rear |
K25x29x17 (DÜR) |
| Bevel pinion |
6306
DNK30/20 (DÜR) |
| Differential |
16014.C3 |
| Rear wheels inner |
6205.C3 |
| Rear wheels outer |
6205RS.C3 |
NSU Wankel Spider 50 HP 1964->
|
| Position |
Code |
| Front wheels inner |
6205.C3 |
| Front wheels outer |
6203.C3 |
Engine Wankel 502:
|
DHK2216 (DÜR) |
| Water pump |
393500 (SKF) |
| Crank housing |
6001 |
| Ignition contact breaker |
6001RS |
| Steering |
DHK2216 (DÜR) |
Clutch withdrawal
(from Nov. 1965) |
(621300007)
360771 (SKF) |
| Transmission: |
|
| Gear box housing |
512124 |
| 1st, 2nd and 3rd speed gears |
K40x45x13 (DÜR) |
| 4th speed gear |
K35x40x13 (DÜR) |
| Reverse idler |
6205.C3 |
| Lay shaft |
6204N.C3, 6305N.C3 |
| Differential |
KLL713149 + KLL713110.F22 |
| Rear wheels inner |
6205.C3 |
Rear wheels outer
(from Sept. 1965) |
6205.C3
6205RS.C3 |
NSU Ro 80 115 HP 1967->
|
| Position |
Code |
| Front wheels |
523669B |
| Universal joints, 96 pcs. (1969->) |
KU.17, 462KL3 |
| Drive shaft |
6008 |
| Water pump |
515679A |
| Crank shaft |
16008 |
| Converter turbine shaft |
6004.C3 |
Clutch withdrawal (->1969)
Clutch withdrawal (1969->) |
(E6721351002)
(D6721303001) |
| Transmission: (1969->) |
|
| Bevel pinion front |
522717 |
| Bevel pinion rear |
517204 |
| 1st and 2nd speed gears |
(E721000120) |
| 3rd speed gear |
(E721000121) |
| Reverse idler |
(E6721015501) |
| Drive shaft |
NAK25 (DÜR)
514901
(E5130400025) |
| Rear wheels inner |
KL44649 + KL44610 |
| Rear wheels outer |
KLM11749 + KLM11710 |
NSU Maxi 1967->
|
| Position |
Code |
| Front wheel |
6004 |
| Steering head, 42 pcs. |
KU.5KL3 |
| Crank shaft |
NJ205, 6004
(240400027) |
| Connecting rod, 16 pcs. |
ZRO.5x10/
(190401018 |
| Eccentric shaft |
6300
K14x18x13 (DÜR) |
| Cam shaft |
6201N
K15x19x13 (DÜR) |
| Valve gear |
6201 |
| Gear box |
6004, 6005
K10x13x10 (DÜR)
(191000021), (241000005) |
| Rear wheel drive |
6005 |
| Rear wheel |
6004 |
Reference: FAG Catalog pages 281 + 282
Bearings dismounting and mounting
Dismounting
Remove bearing only when really necessary. Make sure no dirt enters the ball bearings in case of reuse. Remove a ball bearing with a specialpuller and prevent deformation damage of the the room or shaft. Local heating (by glowlamp) of the bearing can positively affect disassembly.
Mounting
Installation requires extra attention. Early bearing failure is caused by two factors: improper installation (16%) and pollution (14%). Poor lubrication ensures 36% failure and fatigue of the material due to fluctuating load 34%. When mounting the ball bearings subject. Use a good bearing mandrel assembly (flat against inner and outer ring).
Do not take the new bearing out of his package until immediately before it is to be mounted.
Make the room or shaft clean and oil it very lightly for a smooth installation. A room setting can safely be heated with eg. a light bulb. Never hit a hammer on the ball bearing but use a good bearing mandrel.
Grease
Ball bearings, tapered roller bearings and needle bearings can be lubricated with oil or grease. SKF recommends for cars LGMT type 2, a multi-purpose normal temperature grease based on lithium soap / mineral oil with a temperature range of -30 / 120 degrees Celsius with a viscosity of 110.
FAG has developed the L71V Arcanol based lithium grease with a temperature range of -30 / 130 degrees Celsius with a viscosity of 100.
Clearance code C
C1 clearance less than C2
C2 clearance less than Normal
C3 clearance greater than Normal
C4 clearance greater than C3
C5 clearance greater than C4.
