PRODUCT SERIES

Skateboard Bearing Series

Featured Bearings

Models and specifications

23 catalog records. Dimensions in mm.

Model

Bore / shaft diameter

Outside diameter

Width / length

Specifications

R1-4Deep Groove Ball Bearings / R Inch Series

1.984

6.35

3.571

View specifications

Model	R1-4
d Bore (mm)	1.984
D Outside diameter (mm)	6.35
B Width (mm)	3.571
Cr Load (N)	284
C0r Load (N)	98
Oil lubrication (rpm)	80,000
Grease lubrication (rpm)	67,000
Weight (g)	0.53
Catalog source	Bearing model table, PDF page 14, printed page 10
Bearing model/open type	R1-4
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	-
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	2.38
Overall dimensions (mm) / width CZ, 2Z type	-
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	1
Steel balls / number of balls N	8

R133-5TLW1.5/2.35Skateboard Bearing Series

2.35

—

View specifications

Bearing model/open type	R133-5TLW1.5/2.35
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	-
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	2.35
Overall dimensions (mm) / D	5
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	1.5
Overall dimensions (mm) / width CZ, 2Z type	-
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	0.8
Steel balls / number of balls N	7

R133-5TLW2/2.35Skateboard Bearing Series

2.35

—

View specifications

Bearing model/open type	R133-5TLW2/2.35
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	-
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	2.35
Overall dimensions (mm) / D	5
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	2
Overall dimensions (mm) / width CZ, 2Z type	-
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	0.8
Steel balls / number of balls N	7

R133-5.5TLW2/2.35Skateboard Bearing Series

2.35

5.5

—

View specifications

Bearing model/open type	R133-5.5TLW2/2.35
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	-
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	2.35
Overall dimensions (mm) / D	5.5
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	2
Overall dimensions (mm) / width CZ, 2Z type	-
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	0.8
Steel balls / number of balls N	8

R133TLSkateboard Bearing Series

2.381

4.763

—

View specifications

Bearing model/open type	R133TL
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	-
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	2.381
Overall dimensions (mm) / D	4.763
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	1.588
Overall dimensions (mm) / width CZ, 2Z type	-
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	0.8
Steel balls / number of balls N	7

R133TLWSkateboard Bearing Series

2.381

4.763

—

View specifications

Bearing model/open type	R133TLW
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R133-2Z
Bearing model/closed type F-Z, 2Z	FR133-2Z
Overall dimensions (mm)/d	2.381
Overall dimensions (mm) / D	4.763
Overall dimensions (mm) / D1	5.95
Overall dimensions (mm) / Width C open type	2.38
Overall dimensions (mm) / width CZ, 2Z type	2.38
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	0.79
Steel ball/ball diameter	1
Steel balls / number of balls N	7

R133-6TLWSkateboard Bearing Series

2.381

—

View specifications

Bearing model/open type	R133-6TLW
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R133-6W-2Z
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	2.381
Overall dimensions (mm) / D	6
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	2.38
Overall dimensions (mm) / width CZ, 2Z type	2.38
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	1
Steel balls / number of balls N	8

R1-5Skateboard Bearing Series

2.381

7.938

—

View specifications

Bearing model/open type	R1-5
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R1-5-2Z
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	2.381
Overall dimensions (mm) / D	7.938
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	2.78
Overall dimensions (mm) / width CZ, 2Z type	3.57
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	1.588
Steel balls / number of balls N	6

R2-D6TLSkateboard Bearing Series

3.175

—

View specifications

Bearing model/open type	R2-D6TL
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	-
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	3.175
Overall dimensions (mm) / D	6
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	2
Overall dimensions (mm) / width CZ, 2Z type	-
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	1
Steel balls / number of balls N	7

R2-D7TLSkateboard Bearing Series

3.175

—

View specifications

Bearing model/open type	R2-D7TL
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	-
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	3.175
Overall dimensions (mm) / D	7
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	2
Overall dimensions (mm) / width CZ, 2Z type	-
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	1
Steel balls / number of balls N	9

R2TX3-ZZ1Skateboard Bearing Series

3.175

7.52

—

View specifications

Bearing model/open type	-
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R2TX3-ZZ1
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	3.175
Overall dimensions (mm) / D	7.52
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	-
Overall dimensions (mm) / width CZ, 2Z type	2.78/2.88
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	1
Steel balls / number of balls N	7

R2-5TL-ZSkateboard Bearing Series

3.175

7.938

—

View specifications

Bearing model/open type	-
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R2-5TL-Z
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	3.175
Overall dimensions (mm) / D	7.938
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	-
Overall dimensions (mm) / width CZ, 2Z type	3.57
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	1.588
Steel balls / number of balls N	6

R2-5TL-2ZSkateboard Bearing Series

3.175

7.938

—

View specifications

Bearing model/open type	-
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R2-5TL-2Z
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	3.175
Overall dimensions (mm) / D	7.938
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	-
Overall dimensions (mm) / width CZ, 2Z type	3.57
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	1.588
Steel balls / number of balls N	6

R2-5-2ZSkateboard Bearing Series

3.175

7.938

—

View specifications

Bearing model/open type	-
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R2-5-2Z
Bearing model/closed type F-Z, 2Z	FR2-5-2Z
Overall dimensions (mm)/d	3.175
Overall dimensions (mm) / D	7.938
Overall dimensions (mm) / D1	9.12
Overall dimensions (mm) / Width C open type	-
Overall dimensions (mm) / width CZ, 2Z type	3.57
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	0.79
Steel ball/ball diameter	1.588
Steel balls / number of balls N	6

R156-2ZSkateboard Bearing Series

4.763

7.938

—

View specifications

Bearing model/open type	-
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R156-2Z
Bearing model/closed type F-Z, 2Z	FR156-2Z
Overall dimensions (mm)/d	4.763
Overall dimensions (mm) / D	7.938
Overall dimensions (mm) / D1	9.12
Overall dimensions (mm) / Width C open type	-
Overall dimensions (mm) / width CZ, 2Z type	3.17
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	0.91
Steel ball/ball diameter	1
Steel balls / number of balls N	9

F627/4.763Skateboard Bearing Series

4.763

—

View specifications

Bearing model/open type	-
Bearing model / open type F	F627/4.763
Bearing model / closed Z, 2Z type	-
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	4.763
Overall dimensions (mm) / D	8
Overall dimensions (mm) / D1	9.2
Overall dimensions (mm) / Width C open type	2.5
Overall dimensions (mm) / width CZ, 2Z type	-
Overall dimensions (mm) / Flange width C1 Open type	0.6
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	1
Steel balls / number of balls N	9

R166-2ZSkateboard Bearing Series

4.763

9.525

—

View specifications

Bearing model/open type	-
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R166-2Z
Bearing model/closed type F-Z, 2Z	FR166-2Z
Overall dimensions (mm)/d	4.763
Overall dimensions (mm) / D	9.525
Overall dimensions (mm) / D1	10.72
Overall dimensions (mm) / Width C open type	-
Overall dimensions (mm) / width CZ, 2Z type	3.17
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	0.79
Steel ball/ball diameter	1.3
Steel balls / number of balls N	8

R3-2ZSkateboard Bearing Series

4.763

12.7

—

View specifications

Bearing model/open type	-
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R3-2Z
Bearing model/closed type F-Z, 2Z	FR3-2Z
Overall dimensions (mm)/d	4.763
Overall dimensions (mm) / D	12.7
Overall dimensions (mm) / D1	14.35
Overall dimensions (mm) / Width C open type	-
Overall dimensions (mm) / width CZ, 2Z type	4.98
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	1.06
Steel ball/ball diameter	2.381
Steel balls / number of balls N	7

R168TN3-2ZSkateboard Bearing Series

6.35

9.525

—

View specifications

Bearing model/open type	-
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R168TN3-2Z
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	6.35
Overall dimensions (mm) / D	9.525
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	-
Overall dimensions (mm) / width CZ, 2Z type	3.17
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	1
Steel balls / number of balls N	11

R188-2ZSkateboard Bearing Series

6.35

12.7

—

View specifications

Bearing model/open type	-
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R188-2Z
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	6.35
Overall dimensions (mm) / D	12.7
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	-
Overall dimensions (mm) / width CZ, 2Z type	4.76
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	1.588
Steel balls / number of balls N	8

R188K-2ZSkateboard Bearing Series

6.35

12.7

—

View specifications

Bearing model/open type	-
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R188K-2Z
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	6.35
Overall dimensions (mm) / D	12.7
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	-
Overall dimensions (mm) / width CZ, 2Z type	4.76
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	1.588
Steel balls / number of balls N	8

R4-2ZSkateboard Bearing Series

6.35

15.875

—

View specifications

Bearing model/open type	-
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R4-2Z
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	6.35
Overall dimensions (mm) / D	15.875
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	-
Overall dimensions (mm) / width CZ, 2Z type	4.98
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	2.381
Steel balls / number of balls N	8

R4KTN3-2ZSkateboard Bearing Series

6.35

15.875

—

View specifications

Bearing model/open type	-
Bearing model / open type F	-
Bearing model / closed Z, 2Z type	R4KTN3-2Z
Bearing model/closed type F-Z, 2Z	-
Overall dimensions (mm)/d	6.35
Overall dimensions (mm) / D	15.875
Overall dimensions (mm) / D1	-
Overall dimensions (mm) / Width C open type	-
Overall dimensions (mm) / width CZ, 2Z type	4.98
Overall dimensions (mm) / Flange width C1 Open type	-
Overall dimensions (mm) / Flange width C1Z, 2Z type	-
Steel ball/ball diameter	2.381
Steel balls / number of balls N	8

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