MS21438-124 Roller Needle Bearing

Datasheet. MS21438-124 specification

Bore Diameter
The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.

1.4993in. and 1.5000in.

Overall Outside Diameter
The overall length of a straight line which passes through the center of an item,and terminates at the outside circumference.

2.9990in. and 3.0010in.

Lubrication Material
The element,compound,or mixture with which the item is lubricated.

grease

Outer Ring Width

1.4250in. and 1.4400in.

Inner Ring Width

1.4900in. and 1.5000in.

Crown Radius

60.0000in.

Surface Finish
An additional finishing process by which the surface of an item is altered in respect to polishing,grinding,and the like.

ground

Seal Quantity
The number of seals included on the item.

Bearing Seal Type
Indicates the type of seal provided with the bearing.

contact

Alignment Type
Indicates the type of alignment utilized whereby the item will adjust axially for misalignment.

SELF-Aligning

Self-alignment Location
Indicates the location of the self-alignment feature.

external

Features Provided
Those features,not otherwise specified,which may be required for proper functioning of the item.

lubrication groove and lubrication hole

Special Features
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.

no surface finish on bore

Lubrication Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the lubrication material.

MIL-G-81322 mil spec single material response

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

plastic acetal seal or plastic polyhexamethylene adipamide seal

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel end plate

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel inner ring

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel outer ring

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel roller

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

L-P-392 fed spec 1st material response seal or L-P-410, type 6/6 fed spec 2nd material response seal

Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.

cadmium end plate exposed surfaces

Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.

cadmium inner ring or oxide inner ring

Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.

nickel outer ring and chromium outer ring

Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.

QQ-C-320, class 2 fed spec single treatment response outer ring

QQ-P-416, TYPE1, class 2 fed spec single treatment response end plate exposed surfaces

QQ-P-416, type 1, class 2 fed spec 1st treatment response inner ring or MIL-C-13924 mil spec 2nd treatment response inner ring

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

track roller, NON-Separable