Tianhe Conveying Machine Co.,Ltd · Wuxi Jiangsu China
SP Series

Small load for stud mount machined ball transfer Unit SP-22FL

The SP-22FL is a stud mount machined ball transfer unit with a 22.23 mm diameter ball, rated for 140 kg working load and 160 kg maximum load. It is mounted via a stud with M10mm thread and fits into a workbench or deck plate using two screw holes around the housing. The unit weighs 250 g and is available with steel, stainless steel or nylon balls in steel, galvanized steel, chrome plated steel or stainless steel cases.

Stud mount machined ball transfer unit SP-22FL with steel ball and galvanized case, mounted on a workbench
Stud mount machined ball transfer unit SP-22FL with steel ball and galvanized case, mounted on a workbench

Product Overview

The SP-22FL is a stud mount machined ball transfer unit with a 22.23 mm diameter ball, rated for 140 kg working load and 160 kg maximum load. It is mounted via a stud with M10mm thread and fits into a workbench or deck plate using two screw holes around the housing. The unit weighs 250 g and is available with steel, stainless steel or nylon balls in steel, galvanized steel, chrome plated steel or stainless steel cases.

Part of the SP Series range, used in Warehouse and Distribution Centres.

Key Benefits

  • Carries 140 kg per unit in normal service and 160 kg at peak load
  • Stud mount with M10mm thread allows secure attachment to workbenches and decks
  • Two screw holes around the housing provide strong, stable mounting
  • Fine machined ball and seat reduce rolling resistance under load
  • Available in nylon ball to protect delicate surfaces or stainless steel for wet environments

Application Scenarios

  • Transfer points on a flat workbench where trays or flat components need to be repositioned in any direction
  • Assembly lines with rotating stations where a fixture must be turned by hand
  • Packaging machinery where flat items are aligned or rotated before sealing
  • Feeding systems where flat parts are moved between processing stations
  • Router tables or band saws where material needs to be shifted smoothly in all directions

Who It Is For

  • Conveyor system integrators building manual transfer or rotation points
  • Industrial equipment builders designing workbenches with omnidirectional movement
  • Assembly line engineers adding hand-rotatable stations for part alignment
  • Packaging machinery manufacturers integrating flat item positioning systems
  • Industrial distributors stocking ball transfer units by load and mounting type

Problems It Solves

  • Flat items that stick or drag when pushed across a fixed deck due to friction
  • Workstations where a part must be rotated or repositioned without powered assistance
  • Mounting systems that loosen over time due to vibration or repeated load
  • Workbenches requiring multiple transfer points with consistent load capacity
  • Surface damage from steel balls on painted or polished work surfaces

Technical Features

  • Machined ball and housing for consistent fit and low rolling effort
  • Stud mount with M10mm thread and two surrounding screw holes for secure attachment
  • 22.23 mm diameter ball for compatibility with standard deck hole sizes
  • Ball and case materials selected independently to suit the application environment
  • Unit weight of 250 g for deck load and shipping planning

Materials

  • Steel ball and case for general industrial use and high load applications
  • Stainless steel ball and case for wet, washdown or corrosive environments
  • Nylon ball for non-marking contact with painted, polished or sensitive surfaces

Quality Control

  • Load capacity tested against the 140 kg working load before packing
  • Ball rotation checked by hand for free movement in all directions
  • Material grade confirmed against the ball and case option ordered
  • Stud thread inspected for correct M10mm size and depth
  • Mounting holes checked for alignment and clearance

Customization Options

  • Ball material selected between steel, stainless steel and nylon
  • Case material selected between steel & galvanized, steel & chrome plated, and stainless steel
  • Other SP Series models available for different load ratings or mounting styles

Use Guide

  • Divide the load by the number of units in contact to ensure no unit exceeds 140 kg working load
  • Keep peak and impact loading below the 160 kg maximum load figure
  • Mount the unit on a flat, rigid deck plate so all balls sit at the same height
  • Choose nylon ball where the load surface must not be marked
  • Choose stainless steel ball and case where the deck is exposed to moisture or cleaning

Specifications

Model NoSP-22FL
MountingStud mount
Mount DiaM10mm
Load Capacity140 kg
Max Load Capacity160 kg
Weight250 g
Ball Diameter22.23 mm
Ball MaterialSteel, stainless steel, nylon
Case MaterialSteel & galvanized, steel & chrome plated, stainless steel

Manufacturing Process

Step 1

Machining of the case and ball seat to precise dimensions

Step 2

Assembly of the ball and support mechanism

Step 3

Drilling and threading of the stud mount and surrounding screw holes

Step 4

Final inspection of ball rotation and mounting integrity

Step 5

Packing with load rating and material options verified

Compared With Other Options

Flange mount ball transfer unitsStud mount is faster to install on a pre-drilled deck, while flange mount allows easier removal for maintenance
Press fit ball transfer unitsStud mount provides a more secure attachment and can be removed without damaging the deck, unlike press fit units
Lower rated SP Series unitsThe SP-22FL suits 140 kg loads, so lighter applications are better served by smaller units with less rolling resistance

Small load for stud mount machined ball transfer Unit SP-22FL Questions

What load can one SP-22FL ball transfer unit carry?

The rated load capacity is 140 kg per unit and the maximum load capacity is 160 kg.

How is the SP-22FL mounted?

It is a stud mount unit with an M10mm thread and two screw holes around the housing for secure attachment to a workbench or deck.

Which ball material should I choose?

Steel for general use, stainless steel for wet or corrosive areas, nylon to protect painted or polished surfaces.

Is a stainless steel version available?

Yes, both the ball and the case can be supplied in stainless steel.

How much does the unit weigh?

Each SP-22FL weighs 250 g, which is used for deck load and shipping calculations.

Can I get other load ratings in the same series?

Yes, the SP Series includes other load ratings, so ask for the model that matches your load per unit.

Get a Price for Small load for stud mount machined ball transfer Unit SP-22FL

Send the quantity and any material or surface option you need, and a quotation comes back against this model number.