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THK PA Spring Pad for LM Roller (PA15-PA50)

THK PA Spring Pad for LM Roller (PA15-PA50)

THK PA spring pads mount behind LM rollers so clearance and preload can be set simply by tightening an adjusting bolt.

Key features

  • Preload set from outside after installation by torquing the adjusting bolt
  • Self-aligning; eliminates shimming and matched machining
  • Used opposite LM rollers to prevent table lift or to share load with sliding ways
  • Sized to match LRA LM rollers 15 to 50

Specifications

Series PA spring pad
Applicable LRA1547Z to LRA50130
Sizes PA15, 20, 25, 32, 40, 50
Adjusting bolt M5 (PA15) to M12 (PA50)
Function Clearance / preload adjustment
Source THK General Catalog LM Roller (Korean ed. 515-2K), p. A10-19-A10-25
PA15 For LM roller: LRA1547Z | Max allowable load: 1.02 kN | Spring constant: 5.4 kN/mm
PA20 For LM roller: LRA2055Z | Max allowable load: 2.74 kN | Spring constant: 7.5 kN/mm
PA25 For LM roller: LRA2565Z | Max allowable load: 4.11 kN | Spring constant: 9.1 kN/mm
PA32 For LM roller: LRA3275Z | Max allowable load: 4.11 kN | Spring constant: 11.2 kN/mm
PA40 For LM roller: LRA4095 | Max allowable load: 4.8 kN | Spring constant: 15.3 kN/mm
PA50 For LM roller: LRA50130 | Max allowable load: 6.86 kN | Spring constant: 15.5 kN/mm
Linear Motion AccessoriesTHK
6 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing

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THK PA Spring Pad for LM Roller (PA15-PA50)

Brand THK·Linear Motion Accessories

Available part numbers (6)

PA15, PA20, PA25, PA32, PA40, PA50

How to order

Send the THK part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
PA15For LM roller: LRA1547Z | Max allowable load: 1.02 kN | Spring constant: 5.4 kN/mm
PA20For LM roller: LRA2055Z | Max allowable load: 2.74 kN | Spring constant: 7.5 kN/mm
PA25For LM roller: LRA2565Z | Max allowable load: 4.11 kN | Spring constant: 9.1 kN/mm
PA32For LM roller: LRA3275Z | Max allowable load: 4.11 kN | Spring constant: 11.2 kN/mm
PA40For LM roller: LRA4095 | Max allowable load: 4.8 kN | Spring constant: 15.3 kN/mm
PA50For LM roller: LRA50130 | Max allowable load: 6.86 kN | Spring constant: 15.5 kN/mm

Need a different model, or a part not listed here? Send us your parts list →