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Roller Bearing Features

NHBB manufactures cylindrical roller bearings in a wide range of sizes, designs and configurations. The tables and diagrams on this page illustrate some typical specifications for rings and rollers. We also have the capability to design and manufacture complex roller bearings with custom features, such as puller grooves, mounting flanges and anti-rotation devices. Please contact NHBB’s Applications Engineering department to discuss specific requirements for your application.

Roller Bearing Configurations


TPLL

TPLU

TPSU

TPUS

TPU
Inner

TPU
Outer

TPUL

TPUU
Inner

TPUU
Outer

Roller Tolerances

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


Roller Ring Standards

Features
Standard

GUIDE FLANGES:

-Surface finish

-Layback angle tolerance

-Runout to ring face

-Roller end clearance tolerance

 

10 Ra

0.5°-1°

0.0003 in.

0.0010 in.

ROLLER PATHS:

-Surface finish

-Straightness

-Wall Thickness Variation to I.D./O.D.

 

6 Ra

.000050 in.

.000300 in.



Cage/Roller Retention Comparison

Cage Style Method of
Manufacture
Control of
Roller Drop
Reuse After
Disassembly
NDT Inspection Manufacturing
Complexity
Roll Formed
Prior to assembly, cage is "roll formed" 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.