Rail Supports | McMaster-Carr

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System of Measurement

Shaft Diameter

Material

Stainless Steel

OD

ID

Length

Shaft Type

Acme Lead Screw

Round with Support Rail

Plain Bearing Type

Diameter

Shaft Mount Type

Concentric Lock

Width

For Housing ID

0.3124" to 0.3130"

0.3749" to 0.3755"

0.3750" to 0.3755"

0.3755" to 0.3764"

Bearing Type

Construction

Recycled Material

Export Control Classification Number (ECCN)

RoHS

Compliant with Exemptions

REACH

DFARS Specialty Metals

For Load Direction

Combined Radial and Thrust

Combined Radial, Thrust, and Moment

End Type

Retaining Ring Groove

Pipe Size

Lubrication

Overall Length

Bearing Seal Type

Ball Bearing Profile

With Retaining Ring

Maximum Temperature

Less than 200° F

200° F to 249° F

250° F to 299° F

300° F to 499° F

500° F or greater

How can we improve?

27,112 Products

Most Likely Products

Shaft Supports

Support linear motion shafts to prevent bending and rolling under loads

Slip-On Framing and Fittings

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

Handrails

Grab while using stairs to reduce risk of falls

Clamp-On Framing and Fittings

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

All Results

Power Transmission

Shaft Supports

Support linear motion shafts to prevent bending and rolling under loads

Shafts

Transmit power, motion, and speed between machine components

Bearing Housings

Bearing Housings

Mount your own bearings in place

Linear Bearings

Linear Bearings

Minimize friction as parts move along a shaft

Flanged Sleeve Bearings

Flanged Sleeve Bearings

A sleeve and thrust bearing in one to support both parallel and perpendicular loads

Thrust Bearings

Thrust Bearings

Support loads parallel to the shaft with plain, ball, or roller bearings

Sleeve Bearings

Sleeve Bearings

With no moving parts, the plainest type of bearing

Linear Bearing Brakes

Linear Bearing Brakes

Lock bearings in place on a shaft for precise positioning

Bearing Nuts

Hold bearings, bushings, pulleys, and gears in place on threaded shafts and spindles

Bearing Adapter Sleeves

Bearing Adapter Sleeves

Close gaps between your bearing and shaft for a tight fit

Ball Bearings

Create less friction than other bearings for use at high speeds

Roller Bearings

Roller Bearings

Support higher loads than ball bearings, but run at lower speeds

Mounted Bearings

Mounted Bearings

Ball, roller, and sleeve bearings ready to bolt in place

Lead and Ball Screw End Supports

Lead and Ball Screw End Supports

Brace and secure the ends of lead screws and ball screws

Guide Rail Carriages

Guide Rail Carriages

Carry loads along guide rails on accurate and repeatable paths in automated systems

Linear Motion Slides

Linear Motion Slides

Move loads on accurate and repeatable paths beyond the mounting surface

Shaft Adapters

Increase or reduce your shaft's diameter to fit equipment, or replace damaged shaft ends

Shaft Couplings

Shaft Couplings

Connect two shafts to transfer rotary motion from one to the other

Bore Reducers

Adapt the bore of a component to a smaller size for mounting on a shaft

Pulley and Sprocket Bushings

Pulley and Sprocket Bushings

Mount between a rotating shaft and equipment to secure the shaft and reduce vibration

Air Slides

Convey grippers, printing heads, and other loads back and forth on a carriage

Shaft Collars

Hold and position parts on a shaft, or limit shaft movement

Lead Screws and Nuts

Lead Screws and Nuts

Components travel along a screw with broad, square threads to clamp and lift heavy loads

Splines and Spline Bearings

Splines and Spline Bearings

Transmit rotary power or move loads along the length of splines

Ball Screw/Splines

Ball Screw/Splines

Transmit rotary power, move loads along the shaft, or do both at once

Building and Machinery Hardware

Slip-On Framing and Fittings

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

Clamp-On Framing and Fittings

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

T-Slotted Framing and Fittings

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

Strut Channel Framing and Fittings

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

Weld-Together Framing and Fittings

Weld-Together Framing and Fittings

Permanently join rails and fittings to assemble heavy duty racks, shelving, and work tables

Locking-Slotted Framing and Fittings

Locking-Slotted Framing and Fittings

Make platforms, bases, and other structures that stand up to more movement than T-slotted framing

Door Track Brackets

Door Track Brackets

Connect door track to ceilings, walls, and adjacent sections of track

Door Track Hangers

Door Track Hangers

Attach doors, strip doors, and curtains to track

Door Tracks

Hang panels to slide over openings when there’s not space for a swinging door

Door Track Sets

Door Track Sets

Create systems for hanging doors

Brackets

Connect surfaces in an assembly

Adjustable Handles

Adjustable Handles

Lift and turn to easily position and tighten components; also called clamping handles

Material Handling

Conveyor Guide Cross Blocks

Conveyor Guide Cross Blocks

Join conveyor guide mounting rods at different angles

Conveyor Guide Mounting Rods

Conveyor Guide Mounting Rods

Secure guides and other attachments to conveyors

Conveyor Guide Clamps

Conveyor Guide Clamps

Connect conveyor guides to each other and secure them in place

Conveyor Guide Mounting Rod Caps

Conveyor Guide Mounting Rod Caps

Cover the ends of conveyor guide mounting rods for a finished look

Conveyor Brackets

Conveyor Brackets

Mount guide clamps, sensors, drip pans, and other attachments to conveyor frames

Conveyor Accessory Mounts

Conveyor Accessory Mounts

Position guides or sensors to the exact spot needed for your conveyor

Conveyor Roller Bearings

Conveyor Roller Bearings

Replace bearings on conveyor rollers, or press into tubing or pipe to create a roller

Routing Clamp Rails

Routing Clamp Rails

Use with rail-mount routing clamps to route pressurized lines in hydraulic systems

Threaded Rod Mounts

Threaded Rod Mounts

Hang threaded rod from ceilings, walls, beams, and joists

Loop Clamps

Hold pipe snug against the mounting surface to prevent movement that may cause breakage

Pipe Hangers

Suspend pipe, conduit, and tube from threaded rods, hooks, and straps

Pipe Standoff Clamps

Pipe Standoff Clamps

Secure pipes in sanitation drain applications and keep them from touching the mounting surface

Routing Clamps

Secure routed lines of pipe, tubing, and conduit

Threaded Rod Hanger Beams

Threaded Rod Hanger Beams

Mount across roof joists to hang threaded rod and route pipe and duct in areas with no anchor point

Beam Clamps

Secure lines of pipe and duct, overhead equipment, and lighting fixtures to beam flanges

Riser Clamps

Wide flanges support vertical pipe passing through floors

Pipe Supports

Brace pipe, tube, and conduit that needs to be routed between studs or elevated off the floor

Safety Equipment

Handrails

Grab while using stairs to reduce risk of falls

Fabricating and Machining

T-Slot Clamp Supports

T-Slot Clamp Supports

Hold up clamps to keep them in place when they're unclamped

Fastening and Joining

Fastener Assortments

Fastener Assortments

Stay prepared by keeping fasteners in common sizes and materials on hand

Weld Nuts

Weld to metal surfaces to add permanent threads

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)