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Product Details

500 Series Ball profile rails are produced from high-quality bearing steel. All carriages, and rolling elements are through hardened and all rails are case hardened (except size 15 which is through hardened). The end cap is constructed of a high-strength, glass-filled nylon with nitrile rubber seals. Stringent quality controls are in place to ensure consistency of materials, allowing us to ensure that we deliver the highest quality product.

Precision grade for high accuracy applications.

500 Series features:
  • Double-back ball track bearing arrangement
  • Reinforced Nylon 6.6 endcap
  • Longitudinal seals
  • Accuracy Class: (Assembly Tolerance)
    • H - High Grade (±50 μm)
    • P - Precision Grade  (±20 μm)
    • U - Ultra Precision Grade (±5 μm)
  • Preload options: ("C" being the carriage dynamic load)
    • 0 - Clearance
    • 1 - 0.03 C
    • 2 - 0.08 C
    • 3 - 0.13 C
  • Sizes (mm):
    • 15
    • 20
    • 25
    • 35
    • 45
  • Advanced grinding and straightening technologies, providing superior rail straightness
  • Optimized trapezoidal profile
    • High rigidity
    • Single carriage application
  • Optimized ball path with custom insert molded re-circulation paths
    • Running smoothness
    • Low noise
    • Low friction
  • Internal grease pockets for extended bearing life
  • Any carriage can be run on any rail of the same accuracy class without compromising system accuracy
 Carriage Configurations
  • A - Standard
  • B - Standard Long
  • C - Narrow
  • D - Narrow Long
  • E - Narrow High
  • F - Narrow Long High
  • G - Narrow Short

Lubrication Inlet Locations

500 Ball carriages have four lubrication inlet locations per end
  • The Center is plugged with a cap
  • The side inlets are sealed, a simple modification will open
  • The top requires drilling a small hole and applying an O-ring

Lubrication Inlet Locations

Rail Style

The available rails styles are:
A – Bolt from top (standard)
U – Bolt up from bottom
C – Bolt from the top with cover strip

Rails up to six meters without joining available.  Length is unlimited with joints.

Rail Style A, U and C (left to right)


Carriage accessories

Standard carriages are supplied with low friction, double-lip seal and longitudinal side seals
Optional carriage accessories:
  • L - Lube Block (531LL) More details on self lubrication in this article.
  • V - Viton® Wiper (531VR)
  • Z - Metal Scraper (531ZZ)
  • N - Oil Reservoir (531OW)
  • K - Low Drag Seal (531K)
  • C - Bellow Clips (531CC)
Carriage accessories are designed to stack on to the existing end cap.  Longer screws are provided with the accessories if ordered individually

Other accessories

  • Bellows
    • BB - Bellows, Low profile
    • BC - Bellows, High compression
    • BW - Bellows, Walk on
  • HB - Brass Rail plugs
  • HS - Stainless Rail plugs
  • HP - Plastic rail plugs
  • MT - Assembly tool
  • RT - Rail Tape

Modular Accessory Exploded View

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