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With this Link Ball model, the high strength zinc
alloy is used in its holder, and the mounting bolt
and the holder are arranged on the same axis,
allowing this model to receive an axial load.
Since grease is contained in the boot, this
model achieves high lubricity and high wear resistance.*THK standard link balls are for machine applications only. The products listed below are not recommended for automotive applications.
View specifications and model number coding
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Model No.
Outer dimensions
ThreadedS1 JIS Class 2
Holder dimensions
Ball shank dimensions
Bootd5
Ball diameterDa
Permissible tilt angles2θ°
Applied static load
Yield point strengthPk
Mass
LengthL
DiameterD
L1
L2
l
D1
D2
W0-0.3
d2 h9
M1
M2 ±0.3
l 1
W1 0-0.3
d4
TensileCs
CompressiveCs
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
degree
N
N
N
g
RBI5D 46 17 M5×0.8 24 12 4 9 11 9 5 22 11 8 7 9 20 11.112 25 5690 11400 2840 25
RBI6D 55.2 20 M6×1 28 15 5 10 13 11 6 27.2 12.2 11 8 10 20 12.7 25 7450 14900 3730 40
RBI8D 65 24 M8×1.25 32 16 5 12.5 16 14 8 33 16 12 10 12 24 15.875 25 11700 23200 5880 75
RBI10D 74.5 28 M10×1.25 35 18 6.5 15 19 17 10 39.5 19.5 15 11 14 30 19.05 25 16800 33500 8430 120
RBI10BD 80.5 28 M10×1.5 35 18 6.5 15 19 17 10 45.5 19.5 21 11 14 30 19.05 25 16800 33500 8430 123
RBI12D 84 32 M12×1.25 40 20 6.5 17.5 22 19 12 44 21 17 17 19 32 22.225 25 22800 45600 11400 185
RBI12BD 91 32 M12×1.75 40 20 6.5 17.5 22 19 12 51 21 24 17 19 32 22.225 25 22800 45600 11400 190
RBI14D 103 36 M14×1.5 45 25 8 20 25 22 14 58 23.5 22 17 19 38 25.4 17 29800 59600 14900 275
RBI14BD 109 36 M14×2 45 25 8 20 25 22 14 64 23.5 28 17 19 38 25.4 17 29800 59600 14900 280
RBI16D 112 40 M16×1.5 50 27 8 22 27 22 16 62 25.5 23 19 22 44 25.4 17 29800 59600 14900 360
RBI16BD 118 40 M16×2 50 27 8 22 27 22 16 68 25.5 29 19 22 44 25.4 17 29800 59600 14900 370
For more detailed specifications, please download the Product Catalog with the link in the Downloads section of this product page.
Model
Size
Thread
Boot
Screw
RBI
16
B
D
Â
RBI
5
No symbol : Fine thread1
D : With boot attached2
No symbol : Right-hand thread
Â
6
B : Coarse thread
Â
L : Left-hand thread3
Â
8
Â
10
Â
12
Â
14
Â
16
Note 1: Fine thread for automotive applications
Note 2: No model is available without a boot
Note 3: Applies to holder unit, shank side is always right-handed thread