R165141420 Bosch Rexroth Runner Block KWD-045-FNS-C1-N-1
R165141420 (1651-414-20) Bosch Rexroth ball runner block, carbon steel, flanged, normal length, standard height, 45 mm, low preload, normal accuracy, without ball chain.
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Bosch Rexroth linear guides designed for linear ball rail systems are commonly used on industrial CNC router machines. Below is sample of 30 mm, 35 mm, 45 mm, and 55 mm sizes replacement runner blocks that are available to order. Many other sizes and configurations are also available.

R165141420 (1651-414-20) Bosch Rexroth ball runner block, carbon steel, flanged, normal length, standard height, 45 mm, low preload, normal accuracy, without ball chain.

R165142220 (1651-422-20) Bosch Rexroth ball runner block, carbon steel, flanged, normal length, standard height, 45 mm, average preload, precision accuracy, without ball chain.

R165142320 (1651-423-20) Bosch Rexroth ball runner block, carbon steel, flanged, normal length, standard height, 45 mm,Ā average preload, high accuracy, without ball chain.

R165142410 (1651-424-10) Bosch Rexroth Star 45mm ball runner block. Used, rebuilt by CNC Parts Dept., Inc.

R165142420 (1651-424-20) Bosch Rexroth ball runner block, carbon steel, flanged, normal length, standard height, 45 mm, average preload, normal accuracy, without ball chain.

R165151420 (1651-514-20) Bosch Rexroth ball runner block, 55 mm.

R165152410 (1651-524-10) Bosch Rexroth ball runner block, carbon steel, 55 mm, flanged, normal length, standard height, C2 preload, normal accuracy.

R165171410 (1651-714-10) Bosch Rexroth ball runner block, flanged, normal length, standard height, 30 mm, low preload, normal accuracy.Ā Used, rebuilt.

R165171420 (1651-714-20) Bosch Rexroth ball runner block, flanged, normal length, standard height, 30 mm, low preload, normal accuracy, without ball chain.

R165932044 (1659-320-44) Bosch Rexroth Star ball runner block, 35 mm. Used, rebuilt condition.


R166221410 (1662-214-10) Bosch Rexroth STAR ball runner block, 25 mm, designed for use in CNC routers, machine tools, and industrial robots. Used condition.

R166221420 (1662-214-20) Bosch Rexroth STAR ball runner block, carbon steel, 25 mm, slimline, short length, standard height, low preload,Ā normal accuracy, without ball chain.