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ST-B

Medium Load
Shorter Stroke
It has the same dimensions as model ST, but has a shorter stroke and achieves a rated load twice that of ST. Shaft diameter: 8 mm - 100 mm In addition, a type attached with seal is available.
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For Shaft O.D. (mm) Clear
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*Please contact THK if you need more than available quantity or out of stock items
Attributes Part Number Online Store
Unit Price (USD)
Quantity Days to Ship Item Total
For Shaft O.D. (mm): 60
Dust Protection Seal:
Max Stroke (mm): 88
ST60B
Days to Ship: 3 - 4 weeks
For Shaft O.D. (mm): 60
Dust Protection Seal:
Max Stroke (mm): 70
ST60UUB
Days to Ship: 3 - 4 weeks
For Shaft O.D. (mm): 70
Dust Protection Seal:
Max Stroke (mm): 88
ST70B
Days to Ship: 3 - 4 weeks
For Shaft O.D. (mm): 70
Dust Protection Seal:
Max Stroke (mm): 70
ST70UUB
Days to Ship: 3 - 4 weeks
For Shaft O.D. (mm): 80
Dust Protection Seal:
Max Stroke (mm): 76
ST80B
Days to Ship: 3 - 4 weeks
For Shaft O.D. (mm): 80
Dust Protection Seal:
Max Stroke (mm): 58
ST80UUB
Days to Ship: 3 - 4 weeks
For Shaft O.D. (mm): 90
Dust Protection Seal:
Max Stroke (mm): 76
ST90B
Days to Ship: 3 - 4 weeks
For Shaft O.D. (mm): 90
Dust Protection Seal:
Max Stroke (mm): 58
ST90UUB
Days to Ship: 3 - 4 weeks
For Shaft O.D. (mm): 100
Dust Protection Seal:
Max Stroke (mm): 76
ST100B
Days to Ship: 3 - 4 weeks
For Shaft O.D. (mm): 100
Dust Protection Seal:
Max Stroke (mm): 58
ST100UUB
Days to Ship: 3 - 4 weeks
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Model No. Maximumstroke Main dimensions Basic load rating Mass
Inscribed bore diameter Outer diameter Length L1 L2 t d0 r Dynamic
C
Static
C0
No seals With seals dr tolerance D tolerance L tolerance No seals With seals No seals With seals
mm mm mm mm mm mm mm mm mm mm mm mm mm mm kN kN g g
ST8B8-8 +0.022+0.013 150-0.008 240-0.2 20.1-1.50.51.50.52.060.5517.6-
ST10B8-10 190-0.009 30 25.7-1.50.51.50.54.611.2734.5-
ST12B8-12 +0.027+0.016 23 32 27.5-1.50.51.50.58.142.2553.5-
ST16B16-16 28 37 32.1-1.50.51.50.58.042.6585-
ST20B281220 +0.033+0.020 320-0.011 45 39.830.820.520.58.333.24120125
ST25B281225 37 450-0.3 39.830.820.5218.143.63142145
ST30B442730 45 65 58.550.12.50.52.5118.78.14275280
ST35B543735 +0.041+0.025 520-0.013 70 63.555.12.50.72.51.518.79.02410420
ST40B664940 60 80 73.364.92.50.72.51.52512.4635640
ST45B664945 65 80 73.364.92.50.72.51.525.213.5695705
ST50B887050 72 100 92.483.43131.532.517.710201030
ST55B887055 +0.049+0.030 80 100 92.483.431323319.313801400
ST60B887060 850-0.015 100 92.483.4313233.62114801490
ST70B887070 95 1000-0.492.483.4313233.823.316701680
ST80B765880 110 100 928331.53242.530.624302450
ST90B765890 +0.058+0.036 120 100 928331.53243.333.726702700
ST100B7658100 1300-0.018 100 928331.53243.936.829102940
For more detailed specifications, please download the Product Catalog with the link in the Downloads section of this product page.
Model Applicable shaft size1 Type Seals
ST 8 B UU
ST 6 ~ 100 No symbol : Light load normal stroke No symbol : No seals
  B : Medium load short stroke UU : With seals
Note 1: see the Specifications tab for standard sizes