11 Primagra - Bearings, Belts, Inductors, Oil retainer rings, Grease fillers, Bearing pullers

Bearings - Angular contact bearings - Spindle bearings

Prefixes

Type

B – standard, steel balls

HCB – hybrid standard, ceramic balls

XCB – Cronidur standard, ceramic balls

RS – high speed bearing, steel ball

HCRS- high speed bearing, ceramic ball

HS – bearing with small balls, steel balls

HSS - bearing with small balls, steel balls, sealed

HC - bearing with small balls, ceramic balls

HCS -  bearing with small balls, ceramic balls, sealed

XC - Cronidur , bearing with small balls, ceramic balls

XCS - Cronidur , bearing with small balls, ceramic balls, sealed

Suffixes

Features

Standard design

Special design

Internal design

C – contact angle α = 15ᵒ

E – contact angle α = 25ᵒ

D = contact angle α = 20ᵒ

External design

-

CDLR – direct lubrication, annular grooves with O rings for contact angle α = 15ᵒ

 DDLR - direct lubrication, annular grooves with O rings for contact angle α = 20ᵒ

 EDLR - direct lubrication, annular grooves with O rings for contact angle α = 25ᵒ

Cage

T – laminated fabric, quidance on outer ring

TX – new plastic material, new design

TPA - laminated fabric, quidance on outer ring in 718 serie

-

Sealing

2RSD – non contact lip seals on both sides and greased (in series B and HCB)

-

Tolerance class

P4S - FAG standard, better than P4 to DIN 620

P4S-K5  - Restricted diameter tolerance compared to P4S

Bearing arrangement

U- individual bearing, suitable for any arrangement

DU – set of 2 universal bearings

TU – set of 3 universal bearings

QU – set of 4 universal bearings

PU – set of 5 universal bearings

DB - set of 2 bearings, back-to-back arrangement, “ O”

DF - set of 2 bearings, face-to-face arrangement, “ X “

DT – set of 2 bearings, tandem arrangement

TBT – set of 3 bearings, combination of tandem and back-to-back arrangement

TFT – set of 3 bearings, combination of tandem and face-to-face  arrangement

TT – set of 3 bearings, tandem arrangement

QBC - set of 4 bearings, combination of tandem and back-to-back arrangement

QFC – set of 4 bearings, combination of tandem and face-to-face  arrangement

QBT- set of 4 beaings, combination of tandem and back-to-back arrangement

QFC – set of 4 bearings, combination of tandem and face-to-face  arrangement

QT – set of 4 bearings, tandem arrangement

Preload

L – light

M – moderate

H - heavy

-

Grease

L075  and L252

L298, L055

Applications

Work spindle of  machine tools, in the textile industry, in woodworking machinery and wherever extreme demands are placed on reability running accuracy and high speeds, individually or in combination

Series

B718; B719; B70; B72; HCB718; HCB719; HCB70; HCB72; XCB719; XCB70; HS719; HS70; HSS719, HSS70; HC719; HC70; HCS719; HCS70; XC719; XC70;; XCS719; XCS70

 

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Bearings - Angular contact bearings - Spindle bearings

Product Info


(exe: 6205, NUP302, 32202)

exe: TIM, FAG, URB, NSK

mm

mm

mm

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