Plastic Versus Metal Roller End Caps
When to Choose Plastic End Caps
Plastic end caps are used where the load per roller is low and noise reduction is important. They are suitable for light-duty gravity roller applications with minimal impact loading and where quiet operation is required.
When to Choose Metal End Caps
Metal end caps are used where the load per roller is higher or where impact loading occurs. They provide greater strength and durability compared to plastic, especially under repeated or heavy loading.
End Cap Types for Gravity Rollers
Gravity roller end caps are available as plastic roller end cap housings, plastic KTR housings, and metal MTR housings. Each type is designed to fit specific tube diameters, wall thicknesses, and shaft sizes.
KTR Housing Specifications
KTR housings are designed for 30mm tube diameter with 1.5mm or 1.8mm wall thickness and 8mm shaft diameter. Examples include KTR-30X1.5-8 and KTR-30X1.8-8.
MTR Housing Specifications
MTR housings are metal end caps used in higher load or impact environments. They are selected based on tube outside diameter, wall thickness, and shaft diameter to match the roller assembly.
Hex Shaft Versions Available
Both plastic and metal end caps are available with hex shafts for applications requiring positive drive or alignment during installation and maintenance.
Matching End Caps to Roller Dimensions
Select end caps based on the tube outside diameter, tube wall thickness, and shaft diameter of the roller. The correct housing type ensures proper fit and load transfer.
Questions on This Topic
What is the difference between KTR and MTR end caps?
KTR is a plastic housing used for light to medium load applications, while MTR is a metal housing used for higher load or impact conditions.
Can I use a plastic end cap on a heavy-duty roller?
Plastic end caps are not recommended for heavy-duty or high-impact applications. Use metal MTR housings instead.
Are KTR housings available in different wall thicknesses?
Yes, KTR housings are available for 30mm tube with 1.5mm or 1.8mm wall thickness, such as KTR-30X1.5-8 and KTR-30X1.8-8.
Do metal end caps have hex shafts?
Yes, both plastic and metal end caps are available with hex shafts for drive or alignment purposes.
What determines whether to use plastic or metal end caps?
The load per roller and impact level determine the choice. Use plastic for low load and quiet operation, metal for higher load or impact.
Apply This to Your Own Line
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