Hitachi CM 4SB2 Manual

TECHNICAL DATA
AND
SERVICE MANUAL
110 MM CUTTER
CM 4SB2
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
LIST No. E710 Feb. 2006
C
MODEL
CM 4SB2
Hitachi 
Power Tools

REMARK:
Throughout this TECHNICAL DATA AND SERVICE MANUAL, a symbol(s)
is(are) used in the place of company name(s) and model name(s) of our
competitor(s). The symbol(s) utilized here is(are) as follows:
Symbols Utilized
Competitors
Company Name Model Name
MAKITA 4100NH
C

Page
CONTENTS
1. PRODUCT NAME ............................................................................................................................ 1
2. MARKETING OBJECTIVE .............................................................................................................. 1
3. APPLICATIONS ............................................................................................................................... 1
4. SELLING POINTS ........................................................................................................................... 1
4-1. Selling Point Descriptions ................................................................................................................ 2
5. SPECIFICATIONS ........................................................................................................................... 4
5-1. Specifications ....................................................................................................................................4
6. COMPARISONS WITH SIMILAR PRODUCTS ............................................................................... 5
6-1. Specification Comparisons ...............................................................................................................5
6-2. Cutting Characteristics for Various Workpiece Materials .................................................................. 6
7. PRECAUTIONS IN SALES PROMOTION ...................................................................................... 7
7-1. Handling Instructions ........................................................................................................................7
7-2. Cautions on the Name Plate .............................................................................................................8
7-3. Precautions in Use ............................................................................................................................9
8. DISASSEMBLY/REASSEMBLY GUIDE ....................................................................................... 10
8-1. Disassembly ...................................................................................................................................10
8-2. Reassembly ....................................................................................................................................14
8-3. Inspection after Reassembly ..........................................................................................................16
9. STANDARD REPAIR TIME (UNIT) SCHEDULES ........................................................................ 17
Assembly Diagram for Model CM 4SB2

--- 1 ---
1. PRODUCT NAME
Hitachi Cutter, Model CM 4SB2
2. MARKETING OBJECTIVE
The sales of the current Model CM 4SB have been slowing down in the huge Chinese market due to the price war
and spread of made-in-China products and fake brand name products. The new Model CM 4SB2 is the upgraded
version of the current Model CM 4SB and the Model CM 4SA2 that has been mainly sold in Taiwan. The new
Model CM 4SB2 has many selling points such as the powerful motor with the class-top maximum power input,
highly vibration-resistant armature, toolless base adjustment mechanism, and ball bearing covered with metal
bushing. In addition, the Model CM 4SB2 is novel and easy to operate thanks to the soft-grip handle and the
compact body to differentiate from other products at a glance. With the new Model CM 4SB2, we aim to expand
our market share.
3. APPLICATIONS
Cutting or striating stones such as marble and granite, tile, concrete, brick, and similar materials
<< Typical applications >>
Upholstery work, decoration work, stone processing, tiling, electric work, and plumbing
High overload durability thanks to the powerful
1,320 W motor with the class-top maximum
power input
The ball bearing at the
commutator side is covered with
the metal bearing bushing.
4. SELLING POINTS
Compact and lightweight
Longer-life motor thanks to the highly vibration-
resistant and dust-resistant armature coil
It is convenient for edge
cutting thanks to the short
distance (L) between the
blade tip and the base edge.
Easy to use toolless base
adjustment mechanism for
secure fixation of the base
Soft-grip handle for
comfortable grip and fit
Rubber covered
dust-resistant switch
L

--- 2 ---
Model
CM 4SA2
1.23 N
.
m
50
250
200
150
100
0
0.4 2.4
2.0
1.6
1.20.8 2.8
C
1.41 N
.
m
Model
CM 4SB
1.45 N
.
m
Model
CM 4SB2
1.98 N
.
m
Torque-temperature curve
Spindle-torque (N
.
m)
Stator coil temperature ( C)
300
Torque (N•m)
Torque ratio
CM 4SB2 CM 4SA2
1.98
1.37
1.45
1.0 0.97
4-1. Selling Point Descriptions
(1) Powerful 1,320 W motor with the class-top maximum power input
The Model CM 4SB2 has high overload durability thanks to the most powerful motor in the class.
Following table shows a comparison of the spindle torque ratio with the conventional models and a competitor
when the stator coil temperature is 200 ûC. It is clear that high overload durability can be obtained as the
torque becomes high.
CM 4SB C
0.85
1.41 1.23
(2) Highly vibration-resistant and dust-resistant armature coil
The Model CM 4SB2 has substantially higher vibration resistance than the conventional model because
movement of the coil due to vibration is suppressed by coating the periphery of the joint between the armature
coil and the commutator with a special glue. It also prevents dust and debris of concrete or stone from getting
in and scratching the coil surface.
Metal bearing bushing
Sealed armature coil (Glue coated):
Improved resistance to vibration
Protecting from dust and debris
Resin tail cover

--- 3 ---
(3) The ball bearing at the commutator side is covered with the metal bearing bushing
The resin housing incorporates the metal bearing bushing and the outer frame is covered with the resin tail
cover to cope with weakness of the resin housing that it melts by heat of the ball bearing due to overload
operation. This resin tail cover also prevents the CB cap from being loose by vibration.
(4) Soft-grip handle for comfortable grip and fit
The handle grip is entirely covered with a soft resin material (called "elastomer") for nonskid grip and
comfortable fit. This handle offers less user fatigue even if it is operated for a long time.
(5) Easy to use toolless base adjustment mechanism for secure fixation of the base
The Model CM 4SB2 has the base adjustment mechanism equipped with a lever to adjust the cutting depth
without the aid of tools. In the case of the conventional models and the competitors, a wing bolt is used to fix
the base link. However, there is a problem that such a wing bolt is apt to be loose during operation and lost
without being noticed. In the case of the Model CM 4SB2, the base can be easily fixed and loosened just by
raising and lowering the lever. In addition, the lever is prevented from being loose during operation.
(6) Short distance (L) between the blade tip and the base edge
The Model CM 4SB2 has the uniquely shaped
base unit to shorten the dimension (L) as shown
in the left figure. It is convenient for edge cutting.
The dimension (L) of the Model CM 4SB2 is
28 mm as shown in the table above. It is the
shortest among the current models and C by
10 mm or more.
CM 4SB2
28
Comparison of the dimension (L)
CM 4SB
38
CM 4SA2
38
C
42
L
Back side
Metal bearing bushing
CB cap Resin tail cover

--- 4 ---
Housing Polycarbonate resin + elastomer
Handle cover Polycarbonate resin + elastomer
Tail cover Polyamide resin
Gear cover Aluminum die casting
5. SPECIFICATIONS
5-1. Specifications
Max. cutting depth
34 mm (for 110 mm diamond wheel)
31.5 mm (for 105 mm diamond wheel)
Max. diameter
110 mm external dia. x 1 mm thickness x 20 mm internal dia.
Diamond wheel size
Capacity
Full-load current and
power input
Voltage
110 V
120 V
220 V
230 V
Full-load current
AC single phase commutator motor
Type of motor
AC single phase
Power source
Trigger switch
Type of switch
Enclosure
(Material and color)
12.6 A
11.6 A
6.3 A
6.0 A
240 V 5.8 A
11,500/min.No-load rotation speed
2.8 kg (6.2 lbs.) (excluding cord)
Net
3.8 kg (8.4 lbs.)
Gross
Two core cabtire cable
Type
2.5 m (8.2 ft.)
Overall length
Corrugated fiberboard box
Package
Box wrench ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1
Wrench ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1
Water plug (excluding China, U.S.A.) ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1
Rubber adaptor (exclusing China, U.S.A.) •••••••••••••••••••••••••••••••••••••••••••••••••••• 1
Vinyl hose (exclusing China, U.S.A.) •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1
Standard accessories
Weight
Cord
Diamond wheel
•Segment type (for dry cutting) Diameter 106 mm (4-1/8")
•Rim type (for wet cutting) Diameter 110 mm (4-3/8")
•Rim type (for dry and wet cutting) Diameter 104 mm (4")
Optional accessories
Power input
1,320 W
204 mm x 157 mm (8-1/32" x 6-3/16")Overall length x height
CM 4SB2
Item Model

--- 5 ---
6. COMPARISONS WITH SIMILAR PRODUCTS
6-1. Specification Comparisons
Maker • Model HITACHI
mm
Item • Unit CM 4SB2
Diamond wheel dia. 110 (4-3/8")
mmMax. cutting depth 34 (1-3/8")
/minNo-load speed 11,500
W
Power input 1,320
kg
Weight
(excludes cord) 2.8 (6.2 lbs)
VVoltage 220
/minSpeed 11,700
db
Noise level 85
A
Current 6.3
/minSpeed 7,900
N•m
Torque 0.90 (1.22 ft-lbs)
W
Output 740
No-load
K
St. coil 51
K
Ar. coil 63
Full-load
Temperature
rise
kg
Overload durability
16.5 (22.4 ft-lbs)
W
Max. output 2,090
Weight (excludes cord) 2.94 (6.5 lbs)
Overall length 204 (8-1/32")
Height 156 (6-9/64")
Cord length
Provided
Distance between base
edge and blade
Provided
Provided
Large lever
Soft grip handle
Catalog specifications
Characteristics
Features
Vibration level db 103 (1.4 m/s2)
Max. torque
N•m
ratio
1.95
136
Metal bearing holder
Sealed armature coil
Cutting depth setting
mm
mm
2.5 (8.2 ft)
28 (1-7/64")
m
mm
CM 4SB
110 (4-3/8")
34 (1-3/8")
12,000
1,240
2.8 (6.2 lbs)
220
12,000
85
5.9
8,500
0.80 (1.08 ft-lbs)
705
84
72
13.1 (17.8 ft-lbs)
2,040
2.99 (6.6 lbs)
201 (7-29/32")
156 (6-9/64")
Not provided
Not provided
Not provided
Wing bolt
111 (3.6 m/s2)
1.43
100
2.5 (8.2 ft)
38 (1-1/2")
CM 4SA2
110 (4-3/8")
34 (1-3/8")
11,000
1,050
2.6 (5.7 lbs)
220
11,500
86
5.0
7,300
0.81 (1.10 ft-lbs)
620
78
96
9.8 (13.3 ft-lbs)
1,310
2.67 (5.9 lbs)
195 (7-43/64")
156 (6-9/64")
Not provided
Not provided
Not provided
Wing bolt
111 (3.6 m/s2)
1.33
93
2.5 (8.2 ft)
38 (1-1/2")
C
110 (4-3/8")
34 (1-3/8")
13,000
1,200
2.9 (6.4 lbs)
220
12,500
88
5.7
8,500
0.83 (1.19 ft-lbs)
740
77
86
8.8 (11.9 ft-lbs)
1,630
2.94 (6.5 lbs)
206 (8-7/64")
164 (6-29/64")
Not provided
Not provided
Not provided
Wing bolt
106 (2.0 m/s2)
1.43
100
2.5 (8.2 ft)
42 (1-21/32")
N•m

--- 6 ---
6-2. Cutting Characteristics for Various Workpiece Materials
The relationships between cutting speed and load current for various workpiece materials are shown in the graphs
below. At the same cutting speeds, the load currents of the Model CM 4SB2 are lower than those of the Model
CM 4SB and maker C's model.
Power supply: 220 V 50 Hz
Diamond wheel: Segment type, 106 dia.
Rim type, 110 dia.
(1) For wet cutting
Model CM 4SB
C
0.0 1.00.8
0.6
0.4
0.2 1.2
10
2
4
6
8
0
Model
CM 4SB2
0.0 1.00.8
0.6
0.4
0.2 1.2
10
2
4
6
8
0
Model
CM 4SB
C
Model
CM 4SB2
Cutting speed (m/min.)
Marble T25 (Wet)
Current (A)
Cutting speed (m/min.)
Concrete, depth 34 mm (Wet)
Current (A)

--- 7 ---
(2) For dry cutting
7. PRECAUTIONS IN SALES PROMOTION
In the interest of promoting the safest and most efficient use of the Model CM 4SB2 Cutter by all of our customers,
it is very important that at the time of sale the salesperson carefully ensures that the buyer seriously recognizes
the importance of the contents of the Handling Instructions, and fully understands the meaning of the precautions
listed on the Name Plate attached to each tool.
7-1. Handling Instructions
Although every effort is made in each step of design, manufacture and inspection to provide protection against
safety hazards, the dangers inherent in the use of any electric power tool cannot be completely eliminated.
Accordingly, general precautions and suggestions for the use of electric power tools, and specific precautions and
suggestions for the use of the cutter are listed in the Handling Instructions to enhance the safe and efficient use of
the tool by the customer.
Salespersons must be thoroughly familiar with the contents of the Handling Instructions to be able to offer
appropriate guidance to the customer during sales promotion.
Model
CM 4SB
C
0.0 1.50.4
0.3
0.2
0.1
10
2
4
6
8
0
Model
CM 4SB2
0.0 1.00.8
0.6
0.4
0.2
10
2
4
6
8
0
Model
CM 4SB2
Cutting speed (m/min.)
Marble T25 (Dry)
Current (A)
Cutting speed (m/min.)
Concrete, depth 34 mm (Dry)
Current (A)
Model
CM 4SB
C

--- 8 ---
7-2. Cautions on the Name Plate
Each tool is provided with a Name Plate which contains the following basic safety precautions in the use of the
tool.
(1) For China
(2) For Taiwan
(3) For the U.S.A. and Canada
(4) For New Zealand

--- 9 ---
7-3. Precautions in Use
7-3-1. Wet cutting and dry cutting
The Model CM 4SB2 can be used for "wet cutting" applications except the ones exported to China, U.S.A. and
Canada due to limitation of the standards. Although the Model CM 4SB2 has a double-insulation structure to
prevent shock hazard during wet cutting, such insulation is not always complete depending on the customer's
operating conditions, degradation level of the main body, etc. To prevent a possible accident, recommend the
customer to install an earth leakage breaker when using water at operation.
7-3-2. Cautions in cutting or striating
Instruct the customers to check the diamond wheel without fail before operation. Do not use a cracked, broken
or bent wheel.
Instruct the customers not to pour water or grinding fluid on the wheel when using the diamond wheel for dry
cutting (segment type). Otherwise, the service life of the diamond wheel may be shortened.
Instruct the customers to set the cutting depth to 20 mm or less, and not to cut a workpiece at a time but cut it
in several steps if a cutting depth over 20 mm is required. Otherwise, the diamond wheel may be damaged
and its service life may be significantly shortened as well as the motor burnout.
The diamond wheel may be damaged and its service life may be significantly shortened if it is used for zigzag
cutting, curve cutting, inclined cutting, or its side surface is used. Instruct the customers not to use the
diamond wheel in such ways.
Instruct the customers to wear safety glasses and masks without fail to protect themselves from dust
especially during dry cutting.
Although the Model CM 4SB2 is superior to the conventional models in overload durability, operation in
overload or continuous long-term operation may shorten the service life of the Model CM 4SB2 and the
diamond wheel. Instruct the customers not to operate the Model CM 4SB2 in overload.

--- 10 ---
8. DISASSEMBLY/REASSEMBLY GUIDE
Disassembly and reassembly procedures which require particular attention are described below. The [Bold]
numbers in the descriptions below correspond to the item numbers in the Parts List and the exploded assembly
diagram for the Model CM 4SB2. Be sure to unplug the Model CM 4SB2 from the outlet before disassembly or
replacement of the diamond wheel.
8-1. Disassembly
(1) Removal of the diamond wheel (Fig. 1)
Loosen the Bolt (Left-Hand) M7 x 15 [54] using the Wrench (Hex. Socket 10/19.2 mm) [501] and the Box
Wrench 10 mm [502] (standard accessories) then remove the diamond wheel. (The diamond wheel is
secured with the left-hand thread bolt.)
(2) Disassembly of the Housing Ass'y [13] (Fig. 2)
1 Loosen the two Tapping Screws (W/Flange) D4 x 20 (Black) [14] to remove the Tail Cover [18] then
remove the two Brush Caps [31] and two Carbon Brushes (1 Pair) [30].
2 Loosen the three Machine Screws (W/Washers) M5 x 25 [17] to remove the Housing Ass'y [13] and
Armature [46] from the Gear Cover [41]. Then pull the Fan Guide [1] out of the Housing Ass'y [13]
Fig. 1
Fig. 2
[502]
[54]
[501]
[46]
[41]
[13]
[1]
[17] [14]
[18]
[30]
[31]

--- 11 ---
(3) Disassembly of the base ass'y (Fig. 3)
1 Remove the Retaining Ring (E-Type) For D8 Shaft [52] to remove the Link Lever [51]. Loosen the
Special Bolt M6 [53] and remove the Washer M6 [50].
2 Pull out the Roll Pin D6 x 36 [48] which connects the Gear Cover [41] and the Base [49].
Fig. 3
[49]
[48]
[41]
[53]
[52]
[50] [51]
(4) Disassembly of the Bearing Holder [37] (Fig. 4 and Fig. 5)
1 Loosen the two Seal Lock Screws (W/Sp. Washer) M5 x 20 [47]. Tap gently the end surface of the
Gear Cover [41] with a wooden hammer and remove the Bearing Holder [37] in an assembled
condition.
2 Pull out the O-ring [33] attached to the tip of the Spindle [38] and push the end surface of the Spindle
[38] with a hand press holding the side of the Bearing Holder [37]. Then the Distance Piece [35] and
the Spindle [38] can be removed in an assembled condition.
Fig. 4
[35]
[33]
[37] [37]
[41]
[47]
[38] [33]
[38]
[34] [35]
[36]
Jig
Push
Fig. 5
60 mm
38 mm

--- 12 ---
(5) Disassembly of the Spindle [38] (Fig. 6)
Remove the Ball Bearing 606ZZC2PS2L [39] from the Spindle [38]. Push the end surface of the Spindle [38]
with a hand press holding the side of the Gear [56] to remove the Gear [56].
NOTE: It is recommended to replace the Gear [56] together with the Spindle [38]. (Because the press-
fitting force is decreased as it is press-fitted without key.)
Fig. 6
[39]
[38] [56]
(6) Disassembly of the Bearing Bushing [21] (Fig. 7)
1 Pull out the Bearing Bushing [21] from the Housing Ass'y [13]. Remove the Rubber Ring [19] and the
Rubber Washer [20] from the inside of the Bearing Bushing [21].
[19]
[13] [21][20]
Fig. 7

--- 13 ---
(7) Disassembly of the Armature [46] (Fig. 8)
1 Secure the Armature [46] and loosen the Special Nut M7 (right-hand thread) [42] to pull out the Pinion [43].
2 Remove the Ball Bearing 629VVC2PS2L [44], Washer (A) [45], Ball Bearing 608VVC2PS2L [7] and Dust
Seal [6] from both ends of the Armature [46].
Fig. 8
[43]
[42] [45][44] [46] [6] [7]
(8) Disassembly of the Handle Cover [9] and the Switch (1P Screw Type) [11] (Fig. 9)
1 Remove the three Tapping Screws (W/Flange) D4 x 20 (Black) [14] and remove the Handle Cover [9] from
the Housing Ass'y [13].
2 Loosen the small screw of the Switch (1P Screw Type) [11]. Then the two internal wires coming from the
Stator Ass'y [4] and the two internal wires coming from the Cord [28] can be disconnected and the Switch
(1P Screw Type) [11], Switch Rubber Cover [10] and Noise Suppressor [22] can be removed from the
Housing Ass'y [13]. Remove the two Tapping Screws (W/Flange) D4 x 16 [25], Cord Clip [26], Cord [28]
and Cord Armor [27] from the Handle Cover [9].
3 Remove Rubber Cover (B) [8] from the Handle Cover [9].
Fig. 9
[8]
[4]
[10]
[9]
[11]
[13] [14]
[25]
[22]
[26]
[28]
[27]

--- 14 ---
8-2. Reassembly
Reassembly can be accomplished by following the disassembly procedures in reverse. However, special
attention should be given to the following items.
(1) Mounting direction of Washer (A) [45] and Dust Seal [6] (Fig. 10-1)
Check that there is a clearance between the Ball Bearing 629VVC2PS2L [44] and Washer (A) [45], and
between the Ball Bearing 608VVC2PS2L [7] and the Dust Seal [6].
Clearance Clearance
(2) Sufficiently apply grease to the tooth portions of the Pinion [43] and the Gear [56] by rubbing with fingers.
Insufficient greasing may cause an early wear of the Pinion [43] and the Gear [56].
(3) Be careful of the mounting direction of the Cord Clip [26]. (Fig. 10-2)
Fig. 10-1
[45]
[44]
[6] [7]
Fig. 10-2
[25]
[26]
Cord dia.: More than 6.4 mm,
8.5 mm or less
Cord dia.: More than 8.5 mm,
10.8 mm or less
(4) Lubrication
Nippeco SEP-3A grease
•Tooth portion of the Pinion [43]
•Tooth portion of the Gear [56]
•Inside of the gear chamber of the Gear Cover [41]: 5 g
•Inner and outer circumferences of the O-ring [33]
Viewed from the fan Viewed from the commutator

--- 15 ---
(5) Tightening torque
•Bolt (Left Hand) M7 x 15 [54] •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 10.2 2.0 N•m (100 20 kgf•cm)
•Special Nut M7 [42] ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 9.8 1.47 N•m (100 15 kgf•cm)
• Seal Lock Screw (W/Sp. Washer) M5 x 20 [47] •••••••••••••••••••••••••••••••••••• 3.92 0.98 N•m (40 10 kgf•cm)
• Machine Screw (W/Washers) M5 x 25 [17] •••••••••••••••••••••••••••••••••••••••••• 3.43 0.49 N•m (35 5 kgf•cm)
• Hex. Hd. Tapping Screw D5 x 65 [2] •••••••••••••••••••••••••••••••••••••••••••••••••••• 3.43 0.49 N•m (35 5 kgf•cm)
• Tapping Screw (W/Flange) D4 [14] [25] •••••••••••••••••••••••••••••••••••••••••••••••
1.96 0.49 N•m (20 5 kgf•cm)
• Brush Cap [31] •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 0.98 to 1.47 N•m (10 to 15 kgf•cm)
• Hex. Socket Set Screw M5 x 8 [16] ••••••••••••••••••••••••••••••••••••••••••••••••••••• 0.48 to 0.98 N•m (5 to 10 kgf•cm)
(6) Wiring diagram
To prevent rotation failure or reverse rotation, be very careful to ensure that wiring is done properly as
illustrated below. (Fig. 11, 12, 13 and 14)
(6-1) Type I
Switch Cord lead wires
Stator lead wires
Switch
Cord
Armature
Stator
Fig. 11
Fig. 12

--- 16 ---
(6-2) Type II
Switch Cord lead wires
Stator lead wires
Switch
Cord
Armature
Stator
Fig. 13
Fig. 14
Noise suppressor
Noise suppressor
8-3. Inspection after Reassembly
(1) Product accuracy
Runout of the diamond wheel: 0.6 mm maximum at the 100 mm dia. points
(2) Checking the insulation distance
Do not peel off the coating excessively at the connection of the internal wires. Do not get the internal wires in
the joint of the handle.
(3) Measurement of insulation resistance and dielectric strength
On completion of disassembly and repair, measure the insulation resistance and conduct dielectric strength
test.
Insulation resistance: 7 M Ωor more
Dielectric strength: AC 4000V/1 minute, with no abnormalities •••••••••• 220 V --- 240 V products
AC 2500V/1 minute, with no abnormalities •••••••••• 110 V --- 120 V products
(4)No-load current
After no-load operation for 30 minutes, the no-load current should be as follows.
110 V: 4.7 A maximum 220 V: 2.6 A maximum 230 V: 2.4 A maximum 240 V: 2.5 A maximum

--- 17 ---
9. STANDARD REPAIR TIME (UNIT) SCHEDULES
MODEL 10 20 30 40 50 60 min.
Fixed
Variable
CM 4SB2
Work Flow
Tail Cover
Handle Cover
Cord
Cord Armor
Housing Ass'y
Stator Ass'y
Armature
Ball Bearing
(608VV)
Ball Bearing
(629VV)
Bearing Bushing
General Assembly
Pinion
Gear Cover
Spindle and
Gear Set
Bearing Holder
Bearing Cap
Ball Bearing
(606VV)
Ball Bearing
(6002VV)
Base Ass'y