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SR-W Block

Narrow Tapped Holes
With this type, the LM block has a smaller width (W) and tapped holes.

Stainless Steel version is also available
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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 Include Rail Item Total
Size: 15
Preload: No Preload
SR15W1SS BLOCK
Days to Ship: 1 - 3 days
Size: 20
Preload: No Preload
SR20W1SS BLOCK
Days to Ship: 1 - 3 days
Size: 25
Preload: No Preload
SR25W1SS BLOCK
Days to Ship: 1 - 3 days
Size: 30
Preload: No Preload
SR30W1SS BLOCK
Days to Ship: 1 - 3 days
Size: 35
Preload: No Preload
SR35W1SS BLOCK
Days to Ship: 1 - 3 days
Size: 45
Preload: No Preload
SR45W1SS BLOCK
Days to Ship: 1 - 3 days
Size: 55
Preload: No Preload
SR55W1SS BLOCK
Days to Ship: 1 - 3 days
Size: 15
Preload: Light Preload
SR15W1SSC1 BLOCK
Days to Ship: 1 - 3 days
Size: 20
Preload: Light Preload
SR20W1SSC1 BLOCK
Days to Ship: 1 - 3 days
Size: 25
Preload: Light Preload
SR25W1SSC1 BLOCK
Days to Ship: 1 - 3 days
Size: 30
Preload: Light Preload
SR30W1SSC1 BLOCK
Days to Ship: 1 - 3 days
Size: 35
Preload: Light Preload
SR35W1SSC1 BLOCK
Days to Ship: 1 - 3 days
Size: 45
Preload: Light Preload
SR45W1SSC1 BLOCK
Days to Ship: 1 - 3 days
Size: 55
Preload: Light Preload
SR55W1SSC1 BLOCK
Model No. Outer dimensions Block dimensions Rail dimensions Basic load rating
Radial
Height
M
Width
W
Length
L
B C S x l Pitch
F
d1xd2xh Dynamic
rating
C
Static
rating
C0
mm mm mm mm mm mm mm mm kN kN
SR15W 24 34 57 26 26 M4 x 7 60 3.5x6x4.5 13.8 20.5
SR20W 28 42 66.2 32 32 M5 x 8 60 6x9.5x8.5 19.2 28.6
SR25W 33 48 83 35 35 M6 x 9 60 7x11x9 30.9 44.7
SR30W 42 60 96.8 40 40 M8 x 12 80 7x11x9 45.6 64.4
SR35W 48 70 111 50 50 M8 x 12 80 9x14x12 60.4 81.8
SR45W 60 86 126 60 60 M10 x 15 105 11x17.5x14 80.4 107
SR55W 68 100 156 75 75 M12 x 20 120 14x20x17 136 179
AFB-LF is the default grease. For more detailed specifications, please download the Product Catalog with the link in the Downloads section of this product page.
Model Size Block Type Block Code*1 Seal Type*2 Radial Clearance*3
SR 20 SB 1 SS C1 BLOCK
SR 15 W 1 SS No Symbol: Normal
20 TB   C1: Light Preload
25 V
30 SB
35
45
55

Note 1: This number is always 1 for interchangeable blocks Note 2: Contamination protection seal SS is standard for Model SR SS = end seals + side seals Note 3: Radial Clearance

units: µm
Size Normal Light Preload
15 -4 to +2 -10 to -4
20 -5 to +2 -12 to -5
25 -6 to +3 -15 to -6
30 -7 to +4 -18 to -7
35 -8 to +4 -20 to -8
45 -10 to +5 -24 to -10
55 -12 to +5 -28 to -12

The above selections are Online Store standards. If you need a selection that differs from the standard, please contact us at [email protected]