Gravity Roller Bearings & End Caps
The bearing end cap is what decides whether a gravity roller spins freely for years or drags after one winter. This range covers plastic and metal housings that press into the roller tube and carry the bearing on a spring, hex or threaded shaft.
Gravity Roller Bearings families
Gravity Roller Bearings models listed directly in this group

Plastic Roller End Cap Housing with Hex Shaft
MH601511
Plastic Roller Bearing with Hex Shaft
MH501211
Metal Roller End Cap Housing with Hex Shaft
MH601211
Metal Roller Bearings with Hex Shaft
MH501211
Gravity Roller Metal Cover
MTR-89X3.0-20
Gravity Roller Metal End Cap Housing
MTR-76X3.0-20
Gravity Roller Metal Bearings
MTR-57X1.2-12
Metal Roller End Cover MTR
MTR-45X1.5-12
Metal Roller End Cap MTR
MTR-35X1.5-6
Metal Roller End Cap Housing MTR
MTR-32X1.0-12
Metal Roller Bearings MTR
MTR-25X0.8-8
Gravity Roller Plastic End Cover KTR
KTR-50X1.5.40-12/14
Gravity Roller Plastic End Cap Housing KTR
KTR-50X1.5.02-8/10/12
Gravity Roller Plastic End Cap KTR
KTR-40X1.5-10
Plastic Roller End Cap KTR
KTR-40X1.5-8
Gravity Roller Plastic Bearings KTR
KTR-30X1.5-10
Plastic Roller Bearings KTR
KTR-30X1.5-8
Plastic Gravity Roller Bearing
P893020
Gravity Roller Plastic Bearings
P763020
Gravity Roller Plastic End Cover
P602012
Gravity Roller Plastic End Cap Housing
P501212
Gravity Roller Plastic End Cap
P381212
Plastic Roller Bearings
P321008
Roller Plastic Bearings
P250808The problem this group solves
A roller that will not start turning under a light carton is almost always an end cap problem — wrong press fit, dirt reaching the bearing, or a plastic housing that has crept under load.
How to choose
Match three dimensions: roller tube inside diameter, bearing bore and shaft form. Plastic housings are quieter and corrosion-free; metal housings take more load and higher temperature.
Typical applications
- Gravity roller conveyor rebuilds and re-bearing programmes
- OEM roller manufacture
- Replacement of seized end caps on dispatch runs
- Light-load flow racks and pick lines
Where Gravity Roller Bearings is specified
Warehousing and Distribution
Pick faces, dispatch lanes and truck loading runs built from flow track, gravity rollers and ball transfer plates.
SolutionConveyor Retrofit and Spares Programmes
Re-bearing, re-wheeling and re-driving existing conveyor rather than replacing it.
Selection GuideHow to Select a Gravity Roller for a Roller Conveyor
The load a gravity roller actually carries is not the weight of the package. It is the weight divided by the rollers in contact, multiplied by how hard the package arrives.
Comparison GuidePlastic or Metal Roller End Caps
The end cap decides the noise, the roll resistance and the life of a gravity roller. Choosing between a moulded and a steel housing comes down to four questions.
Frequently Asked Questions
Plastic or metal end cap?
Plastic is quieter, cheaper and immune to rust, and suits light to medium cartons. Metal takes higher load, higher temperature and impact.
How is an end cap fitted?
It is pressed into the tube end. The press fit is set by the tube inside diameter, so the tube tolerance matters as much as the cap.
Need gravity roller bearings quoted?
Send the model numbers and quantities; we reply with price, lead time and drawings.