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    • THK Radial Type Caged Ball LM Guide (SSR)

    SSR-XTB Block
    SSR-XW Block
    SSR-XV Block
    Radial Rail (SR) for SSR Blocks

    THK SSR-XTB Block

    Since the LM block can be mounted from the bottom, this type is optimal for applications where through holes for mounting bolts cannot be drilled on the table.

    Model No. Dimensions Basic load rating
    Outer Block Rail Radial
    Height
    M    		 Width
    W    		 Length
    L    		 B C H Pitch
    F    		 d1xd2xh Dynamic
    rating
    C    		 Static
    rating
    C0
    mm mm mm mm mm mm mm mm (KN) (KN)
    SSR15XTB1SS BLOCK 24 52 56.9 41 26 4.5 60 4.5x7.5x5.3 14.7 16.5
    SSR15XTB1SSC1 BLOCK 24 52 56.9 41 26 4.5 60 4.5x7.5x5.3 14.7 16.5
    SSR20XTB1SS BLOCK 28 59 66.5 49 32 5.5 60 6x9.5x8.5 19.6 23.4
    SSR20XTB1SSC1 BLOCK 28 59 66.5 49 32 5.5 60 6x9.5x8.5 19.6 23.4
    SSR25XTB1SS BLOCK 33 73 83 60 35 7 60 7x11x9 31.5 36.4
    SSR25XTB1SSC1 BLOCK 33 73 83 60 35 7 60 7x11x9 31.5 36.4

    THK SSR-XW Block

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

    Model No. Dimensions Basic load rating
    Outer Block Rail 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)
    SSR15XW1SS BLOCK 24 34 56.9 26 26 M4 x 7 60 4.5x7.5x5.3 14.7 16.5
    SSR15XW1SSC1 BLOCK 24 34 56.9 26 26 M4 x 7 60 4.5x7.5x5.3 14.7 16.5
    SSR20XW1SS BLOCK 28 42 66.5 32 32 M5 x 8 60 6x9.5x8.5 19.6 23.4
    SSR20XW1SSC1 BLOCK 28 42 66.5 32 32 M5 x 8 60 6x9.5x8.5 19.6 23.4
    SSR25XW1SS BLOCK 33 48 83 35 35 M6 x 9 60 7x11x9 31.5 36.4
    SSR25XW1SSC1 BLOCK 33 48 83 35 35 M6 x 9 60 7x11x9 31.5 36.4
    SSR30XW1SS BLOCK 42 60 97 40 40 M8 x 12 80 7x11x9 46.5 52.7
    SSR30XW1SSC1 BLOCK 42 60 97 40 40 M8 x 12 80 7x11x9 46.5 52.7
    SSR35XW1SS BLOCK 48 70 110.9 50 50 M8 x 12 80 9x14x12 64.6 71.6
    SSR35XW1SSC1 BLOCK 48 70 110.9 50 50 M8 x 12 80 9x14x12 64.6 71.6

    THK SSR-XV Block

    This type has the same cross-sectional shape as SSR-XW but has a shorter overall LM block length (L).

    Model No. Dimensions Basic load rating
    Outer Block Rail Radial
    Height
    M    		 Width
    W    		 Length
    L    		 B S x l Pitch
    F    		 d1xd2xh Dynamic
    rating
    C    		 Static
    rating
    C0
    mm mm mm mm mm mm mm (KN) (KN)
    SSR15XV1SS BLOCK 24 34 40.3 26 M4 x 7 60 4.5x7.5x5.3 9.1 9.7
    SSR15XV1SSC1 BLOCK 24 34 40.3 26 M4 x 7 60 4.5x7.5x5.3 9.1 9.7
    SSR20XV1SS BLOCK 28 42 47.7 32 M5 x 8 60 6x9.5x8.5 13.4 14.4
    SSR20XV1SSC1 BLOCK 28 42 47.7 32 M5 x 8 60 6x9.5x8.5 13.4 14.4
    SSR25XV1SS BLOCK 33 48 60 35 M6 x 9 60 7x11x9 21.7 22.5
    SSR25XV1SSC1 BLOCK 33 48 60 35 M6 x 9 60 7x11x9 21.7 22.5

    THK Radial Rail (SR) for SSR Blocks

    Rails for SSR Blocks

    Model No. Nominal rail size Maximum length Series Standard pitch F G
    SR15-160LY RAIL 15 mm 160 mm SR15 60 20
    SR15-220LY RAIL 15 mm 220 mm SR15 60 20
    SR15-280LY RAIL 15 mm 280 mm SR15 60 20
    SR15-340LY RAIL 15 mm 340 mm SR15 60 20
    SR15-400LY RAIL 15 mm 400 mm SR15 60 20
    SR15-460LY RAIL 15 mm 460 mm SR15 60 20
    SR15-520LY RAIL 15 mm 520 mm SR15 60 20
    SR15-580LY RAIL 15 mm 580 mm SR15 60 20
    SR15-640LY RAIL 15 mm 640 mm SR15 60 20
    SR15-700LY RAIL 15 mm 700 mm SR15 60 20
    SR15-760LY RAIL 15 mm 760 mm SR15 60 20
    SR15-820LY RAIL 15 mm 820 mm SR15 60 20
    SR15-940LY RAIL 15 mm 940 mm SR15 60 20
    SR15-1000LY RAIL 15 mm 1000 mm SR15 60 20
    SR15-1060LY RAIL 15 mm 1060 mm SR15 60 20
    SR15-1120LY RAIL 15 mm 1120 mm SR15 60 20
    SR15-1180LY RAIL 15 mm 1180 mm SR15 60 20
    SR15-1240LY RAIL 15 mm 1240 mm SR15 60 20
    SR15-1300LY RAIL 15 mm 1300 mm SR15 60 20
    SR15-1360LY RAIL 15 mm 1360 mm SR15 60 20
    SR15-1420LY RAIL 15 mm 1420 mm SR15 60 20
    SR15-1480LY RAIL 15 mm 1480 mm SR15 60 20
    SR15-1540LY RAIL 15 mm 1540 mm SR15 60 20
    SR15-1600LY RAIL 15 mm 1600 mm SR15 60 20
    SR15-3000LY RAIL 15 mm 3000 mm SR15 60 20
    SR20-220L RAIL 20 mm 220 mm SR20 60 20
    SR20-280L RAIL 20 mm 280 mm SR20 60 20
    SR20-340L RAIL 20 mm 340 mm SR20 60 20
    SR20-400L RAIL 20 mm 400 mm SR20 60 20
    SR20-460L RAIL 20 mm 460 mm SR20 60 20
    SR20-520L RAIL 20 mm 520 mm SR20 60 20
    SR20-580L RAIL 20 mm 580 mm SR20 60 20
    SR20-640L RAIL 20 mm 640 mm SR20 60 20
    SR20-700L RAIL 20 mm 700 mm SR20 60 20
    SR20-760L RAIL 20 mm 760 mm SR20 60 20
    SR20-820L RAIL 20 mm 820 mm SR20 60 20
    SR20-940L RAIL 20 mm 940 mm SR20 60 20
    SR20-1000L RAIL 20 mm 1000 mm SR20 60 20
    SR20-1060L RAIL 20 mm 1060 mm SR20 60 20
    SR20-1120L RAIL 20 mm 1120 mm SR20 60 20
    SR20-1180L RAIL 20 mm 1180 mm SR20 60 20
    SR20-1240L RAIL 20 mm 1240 mm SR20 60 20
    SR20-1300L RAIL 20 mm 1300 mm SR20 60 20
    SR20-1360L RAIL 20 mm 1360 mm SR20 60 20
    SR20-1420L RAIL 20 mm 1420 mm SR20 60 20
    SR20-1480L RAIL 20 mm 1480 mm SR20 60 20
    SR20-1540L RAIL 20 mm 1540 mm SR20 60 20
    SR20-1600L RAIL 20 mm 1600 mm SR20 60 20
    SR20-1660L RAIL 20 mm 1660 mm SR20 60 20
    SR20-1720L RAIL 20 mm 1720 mm SR20 60 20
    SR20-1780L RAIL 20 mm 1780 mm SR20 60 20
    SR20-1840L RAIL 20 mm 1840 mm SR20 60 20
    SR20-1900L RAIL 20 mm 1900 mm SR20 60 20
    SR20-1960L RAIL 20 mm 1960 mm SR20 60 20
    SR20-2020L RAIL 20 mm 2020 mm SR20 60 20
    SR20-2080L RAIL 20 mm 2080 mm SR20 60 20
    SR20-2140L RAIL 20 mm 2140 mm SR20 60 20
    SR20-2200L RAIL 20 mm 2200 mm SR20 60 20
    SR20-3000L RAIL 20 mm 3000 mm SR20 60 20
    SR25-220LY RAIL 25 mm 220 mm SR25 60 20
    SR25-280LY RAIL 25 mm 280 mm SR25 60 20
    SR25-340LY RAIL 25 mm 340 mm SR25 60 20
    SR25-400LY RAIL 25 mm 400 mm SR25 60 20
    SR25-460LY RAIL 25 mm 460 mm SR25 60 20
    SR25-520LY RAIL 25 mm 520 mm SR25 60 20
    SR25-580LY RAIL 25 mm 580 mm SR25 60 20
    SR25-640LY RAIL 25 mm 640 mm SR25 60 20
    SR25-700LY RAIL 25 mm 700 mm SR25 60 20
    SR25-760LY RAIL 25 mm 760 mm SR25 60 20
    SR25-820LY RAIL 25 mm 820 mm SR25 60 20
    SR25-940LY RAIL 25 mm 940 mm SR25 60 20
    SR25-1000LY RAIL 25 mm 1000 mm SR25 60 20
    SR25-1060LY RAIL 25 mm 1060 mm SR25 60 20
    SR25-1120LY RAIL 25 mm 1120 mm SR25 60 20
    SR25-1240LY RAIL 25 mm 1240 mm SR25 60 20
    SR25-1300LY RAIL 25 mm 1300 mm SR25 60 20
    SR25-1360LY RAIL 25 mm 1360 mm SR25 60 20
    SR25-1420LY RAIL 25 mm 1420 mm SR25 60 20
    SR25-1480LY RAIL 25 mm 1480 mm SR25 60 20
    SR25-1540LY RAIL 25 mm 1540 mm SR25 60 20
    SR25-1600LY RAIL 25 mm 1600 mm SR25 60 20
    SR25-1660LY RAIL 25 mm 1660 mm SR25 60 20
    SR25-1720LY RAIL 25 mm 1720 mm SR25 60 20
    SR25-1780LY RAIL 25 mm 1780 mm SR25 60 20
    SR25-1840LY RAIL 25 mm 1840 mm SR25 60 20
    SR25-1900LY RAIL 25 mm 1900 mm SR25 60 20
    SR25-1960LY RAIL 25 mm 1960 mm SR25 60 20
    SR25-2020LY RAIL 25 mm 2020 mm SR25 60 20
    SR25-2080LY RAIL 25 mm 2080 mm SR25 60 20
    SR25-2140LY RAIL 25 mm 2140 mm SR25 60 20
    SR25-2200LY RAIL 25 mm 2200 mm SR25 60 20
    SR25-2260LY RAIL 25 mm 2260 mm SR25 60 20
    SR25-2320LY RAIL 25 mm 2320 mm SR25 60 20
    SR25-2380LY RAIL 25 mm 2380 mm SR25 60 20
    SR25-2440LY RAIL 25 mm 2440 mm SR25 60 20
    SR25-2500LY RAIL 25 mm 2500 mm SR25 60 20
    SR25-3000LY RAIL 25 mm 3000 mm SR25 60 20
    SR30-280L RAIL 30 mm 280 mm SR30 80 20
    SR30-360L RAIL 30 mm 360 mm SR30 80 20
    SR30-440L RAIL 30 mm 440 mm SR30 80 20
    SR30-520L RAIL 30 mm 520 mm SR30 80 20
    SR30-600L RAIL 30 mm 600 mm SR30 80 20
    SR30-680L RAIL 30 mm 680 mm SR30 80 20
    SR30-760L RAIL 30 mm 760 mm SR30 80 20
    SR30-840L RAIL 30 mm 840 mm SR30 80 20
    SR30-920L RAIL 30 mm 920 mm SR30 80 20
    SR30-1000L RAIL 30 mm 1000 mm SR30 80 20
    SR30-1080L RAIL 30 mm 1080 mm SR30 80 20
    SR30-1160L RAIL 30 mm 1160 mm SR30 80 20
    SR30-1240L RAIL 30 mm 1240 mm SR30 80 20
    SR30-1320L RAIL 30 mm 1320 mm SR30 80 20
    SR30-1400L RAIL 30 mm 1400 mm SR30 80 20
    SR30-1480L RAIL 30 mm 1480 mm SR30 80 20
    SR30-1640L RAIL 30 mm 1640 mm SR30 80 20
    SR30-1720L RAIL 30 mm 1720 mm SR30 80 20
    SR30-1800L RAIL 30 mm 1800 mm SR30 80 20
    SR30-1880L RAIL 30 mm 1880 mm SR30 80 20
    SR30-1960L RAIL 30 mm 1960 mm SR30 80 20
    SR30-2040L RAIL 30 mm 2040 mm SR30 80 20
    SR30-2120L RAIL 30 mm 2120 mm SR30 80 20
    SR30-2200L RAIL 30 mm 2200 mm SR30 80 20
    SR30-2280L RAIL 30 mm 2280 mm SR30 80 20
    SR30-2360L RAIL 30 mm 2360 mm SR30 80 20
    SR30-2440L RAIL 30 mm 2440 mm SR30 80 20
    SR30-2520L RAIL 30 mm 2520 mm SR30 80 20
    SR30-2600L RAIL 30 mm 2600 mm SR30 80 20
    SR30-2680L RAIL 30 mm 2680 mm SR30 80 20
    SR30-2760L RAIL 30 mm 2760 mm SR30 80 20
    SR30-2840L RAIL 30 mm 2840 mm SR30 80 20
    SR30-2920L RAIL 30 mm 2920 mm SR30 80 20
    SR30-3000L RAIL 30 mm 3000 mm SR30 80 20
    SR35-280L RAIL 35 mm 280 mm SR35 80 20
    SR35-360L RAIL 35 mm 360 mm SR35 80 20
    SR35-440L RAIL 35 mm 440 mm SR35 80 20
    SR35-520L RAIL 35 mm 520 mm SR35 80 20
    SR35-600L RAIL 35 mm 600 mm SR35 80 20
    SR35-680L RAIL 35 mm 680 mm SR35 80 20
    SR35-760L RAIL 35 mm 760 mm SR35 80 20
    SR35-840L RAIL 35 mm 840 mm SR35 80 20
    SR35-920L RAIL 35 mm 920 mm SR35 80 20
    SR35-1000L RAIL 35 mm 1000 mm SR35 80 20
    SR35-1080L RAIL 35 mm 1080 mm SR35 80 20
    SR35-1160L RAIL 35 mm 1160 mm SR35 80 20
    SR35-1240L RAIL 35 mm 1240 mm SR35 80 20
    SR35-1320L RAIL 35 mm 1320 mm SR35 80 20
    SR35-1400L RAIL 35 mm 1400 mm SR35 80 20
    SR35-1480L RAIL 35 mm 1480 mm SR35 80 20
    SR35-1640L RAIL 35 mm 1640 mm SR35 80 20
    SR35-1720L RAIL 35 mm 1720 mm SR35 80 20
    SR35-1800L RAIL 35 mm 1800 mm SR35 80 20
    SR35-1880L RAIL 35 mm 1880 mm SR35 80 20
    SR35-1960L RAIL 35 mm 1960 mm SR35 80 20
    SR35-2040L RAIL 35 mm 2040 mm SR35 80 20
    SR35-2120L RAIL 35 mm 2120 mm SR35 80 20
    SR35-2200L RAIL 35 mm 2200 mm SR35 80 20
    SR35-2280L RAIL 35 mm 2280 mm SR35 80 20
    SR35-2360L RAIL 35 mm 2360 mm SR35 80 20
    SR35-2440L RAIL 35 mm 2440 mm SR35 80 20
    SR35-2520L RAIL 35 mm 2520 mm SR35 80 20
    SR35-2600L RAIL 35 mm 2600 mm SR35 80 20
    SR35-2680L RAIL 35 mm 2680 mm SR35 80 20
    SR35-2760L RAIL 35 mm 2760 mm SR35 80 20
    SR35-2840L RAIL 35 mm 2840 mm SR35 80 20
    SR35-2920L RAIL 35 mm 2920 mm SR35 80 20
    SR35-3000L RAIL 35 mm 3000 mm SR35 80 20

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