286
Ball Bearing Replacement Chart
Delrin is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates. 
 
Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Car
Bearing 
style
Part number
Description
Car width
Car length
# balls 
per car
Ball 
material
Ball kit
Ball diam-
eter
Car 
loader
Car loader for 
CB+ to non-CB
in
mm
in
mm
Part No. # Balls
in
mm
Included
Order
CB only
2700, 2701, 2702, 2703
Micro CB
1 9/16
40
2 3/16
56
40
Torlon
2708
20
3/16
5
— 
— 
CB+
2726, 2728, 2730, 2732, 2744 
Small Boat CB 
2 3/16
56
2 7/8
73
40
Delrin
176
21
1/4
6
— 
HSB116 
CB+
2727, 2729, 2731, 2733, 2734, 2745 
Small Boat CB high-load 
2 3/16
56
2 7/8
73
40
Torlon
177
21
1/4
6
— 
HSB116 
CB+
2735, 2736, 2737, 2738, 2746 
Small Boat CB 1250 series 
2 3/16
56
4 1/8
105
60
Torlon
177
21
1/4
6
— 
HSB116 
Non-CB
156, 157, 171, 211 
Small Boat 
2 3/16
56
2 7/8
73
42
Delrin
176
21
1/4
6
HSB116 
— 
Non-CB
158, 159, 172, 210, 212 
Small Boat high-load 
2 3/16
56
2 7/8
73
42
Torlon
177
21
1/4
6
HSB116 
— 
Non-CB
214, 215, 247, 440, 441
Small Boat 1250 series 
2 3/16
56
4 3/8
111
64
Torlon
177
21
1/4
6
HSB116 
— 
CB+
T2701B, T2702B, T2703B, T2705B, T2721B, 
T2722B, T2731B, T2732B, T2741B, T2742B
T27 Midrange CB
2 3/4
70
4 1/4
108
48
Torlon
1526
25
5/16
8
— 
HMR2 
CB+
T2701B.HL, T2702B.HL, T2703B.HL, T2705B.HL, T2721B.HL, 
T2722B.HL, T2731B.HL, T2732B.HL, T2741B.HL, T2742B.HL
T27 Midrange CB high-load
2 3/4
70
5 3/16
132
60
Torlon
1526
25
5/16
8
— 
HMR2 
CB+
T2704B.HL, T2744B.HL
T27 Midrange CB 2 cars with 2 toggles 
2 3/4 
70
4 1/4
108
48 x 2
Torlon
1526
25
5/16
8
— 
HMR2 x 2
CB+
1635
Midrange CB windward sheeting
2 3/4 
70
4 1/4 
108
48
Torlon
1526
25
5/16
8
— 
HMR2
CB+
1636
Midrange CB high-load windward sheeting
2 3/4 
70
5 3/16
132
60
Torlon
1526
25
5/16
8
— 
HMR2 
CB+
1624, 1628
Midrange CB 
2 3/4 
70
4 1/4
108
48
Torlon
1526
25
5/16
8
— 
HMR2
CB+
1629
Midrange CB long
2 3/4  
70
5 3/16
132
60
Torlon
1526
25
5/16
8
— 
HMR2 
CB only
1626, 1640
Midrange CB 
2 3/4 
70
4 1/4
108
48
Torlon
1526
25
5/16
8
— 
— 
CB only
1625, 1627, 1641
Midrange CB long
2 3/4
70
5 3/16
132
60
Torlon
1526
25
5/16
8
— 
— 
Non-CB
1508, 1575, 1594 
Midrange 
2 3/4
70
4 1/4
108
48
Torlon
1526
25
5/16
8
HMR2 
— 
Non-CB
1509, 1576, 1595 
Midrange long 
2 3/4 
70
5 1/4
133
60
Torlon
1526
25
5/16
8
HMR2 
— 
Non-CB
1604
Midrange with 2 toggles 
2 3/4
70
7 1/4
184
86
Torlon
1526
25
5/16
8
HMR47
— 
CB+
T3201B, T3202B, T3203B, T3205B, T3221B, 
T3222B, T3231B, T3232B, T3241B, T3242B
T32 Big Boat CB 3000 series 
3 5/16
85
5 3/8
136
50
Torlon
547
25
3/8
10
— 
HBB1
CB+
T3201B.HL, T3202B.HL, T3203B.HL, T3205B.HL, 
T3221B.HL, T3222B.HL, T3231B.HL, T3232B.HL, 
T3241B.HL, T3242B.HL, T3243B.HL
T32 Big Boat CB 4500 series 
3 5/16
85
7 7/16
188
72
Torlon
547
25
3/8
10
— 
HBB28
CB+
T3204B, T3224B, T3234B, T3244B, T3209B
T32 Big Boat CB 5000 series with 2 toggles/shackles 
3 5/16
85
9 1/8 
231
90
Torlon
547
25
3/8
10
— 
HBB25
CB+
T3204B.HL, T3224B.HL, T3234B.HL, T3244B.HL, T3209B.HL
T32 Big Boat CB 2 high-load cars with 2 toggles 
3 5/16
85
7 7/16
188
72 x 2
Torlon
547
25
3/8
10
— 
HBB28 x 2
CB+
T3208B
T32 Big Boat CB 2 cars with 2 toggles 
3 5/16
85
5 3/8
136
50 x 2
Torlon
547
25
3/8
10
— 
HBB1 x 2
CB+
3176, 3177
Big Boat CB 3000 series windward sheeting
3 5/16
85
5 3/8
136
50
Torlon
547
25
3/8
10
— 
HBB1
CB+
3178, 3179
Big Boat CB 4500 series windward sheeting
3 5/16
85
7 7/16
188
72
Torlon
547
25
3/8
10
— 
HBB28
CB+
3160, 3163, 3164
Big Boat CB 3000 series 
3 5/16
85
5 3/8
136
50
Torlon
547
25
3/8
10
— 
HBB1
CB+
3161, 3165, 3166
Big Boat CB 4500 series 
3 5/16
85
7 7/16
188
72
Torlon
547
25
3/8
10
— 
HBB28
T R A V E L E R
CB+ car
CB-only car
Non-CB car
Car body
width
Torlon®
Length
Delrin®

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