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NSK Linear GuideTM Roller Guide Equipped with V1 Seal

             NSK K1TM lubrication unit

             Porous resin  Containing a large amount
                           of lubricant oil

                  Enlarged view of NSK K1

             Made of porous synthetic resin containing a                                                                                                                             V1 Seal
             large amount of lubrication oil.
             When moved through contact with the raceway                                                                                                                 Highly abrasion-resistant
             surface, it supplies fresh lubricating oil.                                                                                                                 material used for seal lip

Rail cover (optional)           Rail mounting hole caps                                                                                                                  Abrasion amount, mg

                                                                                                                              Lip made from                                      New material Existing material
                                                                                                                              a new material
                                                                                                                  Protector                                              Taper abrasion test (ASTMD1044)
                                                                                                                                                                         Load: 9.8 N
                                                                                                                                                                         Average speed: 29.7 m/min,

                                                                                                                                                                                              Approx. 40 km/day

                                               The shape is partly changed.

Covers the top surface of the rail These caps prevent foreign matter                                       V1 Seal made of new materials and in a new shape for better
and prevents foreign matter from from building up inside the rail                                          abrasion resistance prevents foreign matter getting into the roller
entering in rail mounting bolt holes. mounting holes.                                                      slide for a long period.

■ Durability test under extreme conditions - no lubrication                                                                       V1 Seal                                                     Conventional end seal

	 With this new material, even if lubrication is poor, damage 	                                                                     Slight wear                                                           Abrasion
	 such as roughening of surfaces will not occur.

	 〈 Test condition〉                                                                                                               L NSK K1TM
	 ・Test sample: RA35                                                                                                                                            V1 seal
	 ・Operation without lubrication on the seal
	 ・Feed speed: 30 m/min

■ Applicable models

	 RA35, RA45 and RA55

■ Dimensions for roller slide with V1 seal                                                                                                                                                    Unit: mm

                                                                                    Roller slide length L

      Model       Equipped with standard seal  Equipped with V1 seal                                       Equipped with V1 seal  Thickness of V1 seal Thickness of NSK K1
                                                                                                                 and NSK K1

RA35  AN, AL, EM           123.8                          127.8                                            140.8                                 3.4 6.5
      BN, BL, GM           152                            156                                              169

RA45  AN, AL, EM           154                            159.2                                            173.2                                 47
      BN, BL, GM           190                            195.2                                            209.2

RA55  AN, AL, EM           184                            189.2                                            203.2                                 47
      BN, BL, GM           234                            239.2                                            253.2

Since the sealing property (resistance to foreign matter) is affected by usage or the lubrication environment, please conduct an evaluation test for your particular application.

Observe the following precautions to maintain the long-term efficiency of the performance seals:
	 Permissible temperature range ----- Maximum operating temperature: 50°C, Maximum instantaneous peak temperature: 80°C
	 Chemical precautions -----	 Never leave the linear guide near grease-removing organic solvents such as hexane or thinner.
		 Never immerse the linear guide in kerosene or rust preventive oils which contain kerosene.

                                                                                                           CAT. No.ESP-140320 2014 X-10 Printed in Japan©NSK Ltd. 2014
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