Stepup 50 Series Kingpinless Specifications
(Non Brake)
Diameter Wheel
Tread Width
Load Capacity
Wheel Material
Bearing Type
Load Height
Swivel Radius
Non Brake Swivel Number
4
2
300
TPR(flat)
Roller
5 5/8
3 1/4
50SAA4020TPR-KP
350
Rubber on Steel
50SAA4020RSR-KP
700
Polyolefin
50SAA4020POR-KP
Polyurethane on Polyolefin
50SAA4020PUR-KP
Polyurethane on Steel
50SAA4020PSR-KP
Polyurethane on Aluminum
50SAA4020PAR-KP
800
Phenolic
50SAA4020PHR-KP
900
V-Groove
50SAA4020VGR-KP
Cast Iron
50SAA4020CIR-KP
5
2
350
TPR(flat)
Roller
6 1/2
3 7/8
50SAA5020TPR-KP
400
Rubber on Steel
50SAA5020RSR-KP
900
Polyolefin
50SAA5020POR-KP
800
Polyurethane on Polyolefin
50SAA5020PUR-KP
1000
Polyurethane on Steel
50SAA5020PSR-KP
Polyurethane on Aluminum
50SAA5020PAR-KP
Phenolic
50SAA5020PHR-KP
V-Groove
50SAA5020VGR-KP
Cast Iron
50SAA5020CIR-KP
6
2
500
TPR(flat)
Roller
71/2
4 1/2
50SAA6020TPR-KP
TPR(round)
50SAA6020TPR-R-KP
Rubber on Steel
50SAA6020RSR-KP
950
Polyolefin
50SAA6020POR-KP
900
Polyurethane on Polyolefin
50SAA6020PUR-KP
1100
Polyurethane on Polyolefin
50SAA6020PSR-KP
Polyurethane on Aluminum
50SAA6020PAR-KP
Phenolic
50SAA6020PHR-KP
V-Groove
50SAA6020VGR-KP
Cast Iron
50SAA6020CIR-KP
8
2
600
TPR(flat)
Roller
9 1/2
5 9/16
50SAA8020TPR-KP
TPR(round)
50SAA8020TPR-R-KP
Rubber on Steel
50SAA8020RSR-KP
1100
Polyolefin
50SAA8020POR-KP
Polyurethane on Polyolefin
50SAA8020PUR-KP
1350
Polyurethane on Steel
50SAA8020PSR-KP
Polyurethane on Aluminum
50SAA8020PAR-KP
Phenolic
50SAA8020PHR-KP
V-Groove
50SAA8020VGR-KP
Cast Iron
50SAA8020CIR-KP

* All Roller Bearing wheels are also available with Delrin bearing. Change last digit of part number to D. Example: 50SAA4020TPD-KP.

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