nhbb :: hitech engineering :: roller bearing

roller bearing features

NHBB manufactures cylindrical roller bearings in a wide range of designs and configurations. The tables on this page illustrate some typical specifications. Please contact your HiTech sales and engineering groups to discuss specific requirements for your application.

Roller

Diameter & Length	Examples		Corner
Diameter & Length	Crown Drop	Flat Length	Corner
5mm	Min: .0001" Max: .0003"	Min: .050" Max: .130"	.012-.018"
22mm	Min: .00070" Max: .00096"	Min: .300" Max: .540"	.030-.040"

Roller Bearing Rings

Features

Standard

GUIDE FLANGES:

-Finish-CLA

-Layback Angle Tolerance

-Runout

-Roller End Clearance Tolerance

1°

.0003"

.0010"

ROLLER PATHS:

-Finish-CLA

-Straightness

-Wall Thickness Variation

.000050"

.0003"

Cage/Roller Retention Comparison

Cage Style	Method of Manufacture	Control of Roller Drop	Reuse After Disassembly	NDT Inspection	Manufacturing Complexity
Roll Peened	Prior to assembly, cage is "roll peened" to create retention.	Yields a relatively high roller drop as a function of roller diameter.	Yes.	All methods.	Low.
Line Staked	After rollers are in place, line stake tool forms retention.	Tab is formed after assembly for close control of roller drop.	No. (Disassembly not possible.)	Visual only.	Moderate.
Fully Machined	Roller retention is formed during broaching.	Yields a relatively high roller drop as a function of roller diameter.	Yes.	All methods.	High.