Ball Transfer Unit KSM SP-FL series

Heavy duty ball transfer unit with screw stud
Industrial omnidirectional ball transfer unit
Chrome plated carbon steel ball transfer unit
Heavy duty ball transfer unit with screw stud
Industrial omnidirectional ball transfer unit
Chrome plated carbon steel ball transfer unit

Ball Transfer Unit KSM SP-FL series

Short Product Description:

Housing: Carbon steel chrome-plated with excellent mechanical strength and rust resistance. Surface hardness ≥HV800, wear-resistant and corrosion-proof, ideal for long-term industrial use.

Ball: High-precision bearing steel, quenched to hardness ≥HRC60, polished surface for smooth, jitter-free rolling.

Screw Stud: Carbon steel galvanized, high strength, precise thread, securely locks to equipment or brackets without loosening.

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Product Description

Material Composition


  • Housing: Carbon steel chrome-plated with excellent mechanical strength and rust resistance. Surface hardness ≥HV800, wear-resistant and corrosion-proof, ideal for long-term industrial use.

  • Ball: High-precision bearing steel, quenched to hardness ≥HRC60, polished surface for smooth, jitter-free rolling.

  • Screw Stud: Carbon steel galvanized, high strength, precise thread, securely locks to equipment or brackets without loosening.


Structure & Performance


  • Integrated flange and screw stud design: locates via flange face and locks quickly with stud, no extra fixtures needed, compatible with various mounting holes.

  • Fully enclosed cavity: blocks dust, debris, and liquids effectively, prevents ball jamming, and greatly extends service life.

  • Optimized ball protrusion height: uniform load distribution, 360° omnidirectional rotation for precise material steering and smooth conveying.

  • Operating temperature range: -30℃ ~ +80℃, adaptable to most industrial production environments.

  • Load capacity: 50kg – 500kg (varies by model), meeting light to heavy-duty application requirements.



Product Parameters

ModelLoadingCapacity( kg )Dimensions(mm)weight(g)
No .SP-FLMaterialRecommended loadMaximum loaddDD1h1h2HH1M
Home ballDiameterDiameterSphere protrusionInstallation protrusionHighScrew lengthPitch
SP8-FLBearing steel8kg15kg8201524.311.112M515g
Stainless steel5kg10kg
Nylon ball4kg6kg13g
SP15-FLBearing steel25kg30kg15.8831245102118M869g
Stainless steel20kg25kg
Nylon ball10kg15kg63g
SP22-FLBearing steel140kg160kg22.22453649.83122M 10220g
Stainless steel100kg130kg
Nylon ball80kg100kg183g
SP25-FLBearing steel180kg200kg25.445387.2143125M 12235g
Stainless steel140kg160kg
Nylon ball100kg130kg180g
SP30-FLBearing steel250kg300kg30.1655456.413.836.530M 16410g
Stainless steel190kg240kg
Nylon ball130kg160kg318g
SP38-FLBearing steel380kg420kg38.16957816.546.540M 18980g
Stainless steel320kg360kg
Nylon ball160kg180kg796g
SP45-FLBearing steel450kg500kg4574629195445M201180g
Stainless steel320kg360kg


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