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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Our extensive linear motion parts inventory includes linear bearings also called linear guides and runner blocks. Ball nuts and linear actuators are available too. In addition to supplying spare linear parts, we can specify new and replacement linear-motion systems for your CNC router application.

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, 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.

R165171410 (1651-714-10) Bosch Rexroth ball runner block, flanged, normal length, standard height, 30 mm, low preload, normal accuracy. 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, normal accuracy, without ball chain.

R166621420 (1666-214-20) Bosch Rexroth Star linear guide, 25 mm slimline, Multicam replacement. Replaces part# 1666-294-11.


IBL R40-40-32-4000-060 ball nut features 40mm pitch and 40mm diameter. Rebuilt condition.

RNFCL3232A3S NSK R series rolled ball screw nut assembly, 32 mm, sealed, threaded body, end cap type, flanged nut.

NSK RNFCL4040-A3S ball nut, 40 mm, threaded body, flanged. Used condition, rebuilt.
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