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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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Days to Ship Clear
For Shaft O.D. (mm) Clear
  1. see 12 more see less
Dust Protection Seal Clear
Max Stroke Range (mm) Clear
In stock
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*Please contact THK if you need more than available quantity or out of stock items
Attributes Part Number Unit Price Quantity Days to Ship Item Total
For Shaft O.D. (mm): 8
Dust Protection Seal: No Seal
Max Stroke (mm): 8
ST8B
Days to Ship: 1 - 3 days
ST10B
Out of stock
Out of stock ? Contact us to place an order
For Shaft O.D. (mm): 12
Dust Protection Seal: No Seal
Max Stroke (mm): 8
ST12B
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 16
Dust Protection Seal: No Seal
Max Stroke (mm): 16
ST16B
Days to Ship: 2 - 3 weeks*
ST20B
Out of stock
Out of stock ? Contact us to place an order
For Shaft O.D. (mm): 20
Dust Protection Seal: With Seal
Max Stroke (mm): 12
ST20UUB
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 25
Dust Protection Seal: No Seal
Max Stroke (mm): 28
ST25B
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 25
Dust Protection Seal: With Seal
Max Stroke (mm): 12
ST25UUB
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 30
Dust Protection Seal: No Seal
Max Stroke (mm): 44
ST30B
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 30
Dust Protection Seal: With Seal
Max Stroke (mm): 27
ST30UUB
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 35
Dust Protection Seal: No Seal
Max Stroke (mm): 54
ST35B
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 35
Dust Protection Seal: With Seal
Max Stroke (mm): 37
ST35UUB
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 40
Dust Protection Seal: No Seal
Max Stroke (mm): 66
ST40B
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 40
Dust Protection Seal: With Seal
Max Stroke (mm): 49
ST40UUB
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 45
Dust Protection Seal: No Seal
Max Stroke (mm): 66
ST45B
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 45
Dust Protection Seal: With Seal
Max Stroke (mm): 49
ST45UUB
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 50
Dust Protection Seal: No Seal
Max Stroke (mm): 88
ST50B
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 50
Dust Protection Seal: With Seal
Max Stroke (mm): 70
ST50UUB
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 55
Dust Protection Seal: No Seal
Max Stroke (mm): 88
ST55B
Days to Ship: 2 - 3 weeks*
For Shaft O.D. (mm): 55
Dust Protection Seal: With Seal
Max Stroke (mm): 70
ST55UUB
Days to Ship: 2 - 3 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