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fon: +49 (0)2391 91796–0
fax: +49 (0)2391 91796–30

In all emer­gen­ci­es:

mo­bil: +49 (160) 7757238

SADDLE KEYS

SADDLE KEYS

  • ma­de to DIN 6881
  • avail­ab­le from stock
  • avail­ab­le in all ma­te­ri­als with/without heat tre­at­ment
  • cus­tom di­men­si­ons pos­si­ble

SADDLE KEYS

SADDLE KEYS

  • ma­de to DIN 6881
  • avail­ab­le from stock
  • avail­ab­le in all ma­te­ri­als with/without heat tre­at­ment
  • cus­tom di­men­si­ons pos­si­ble

MORE FACTS ON OUR SADDLE KEYS

Tech­ni­cal Drawing

Di­men­si­ons Avail­ab­le
Width w 6 — 36 mm
Height h 2 — 9 mm
Length l 20 — 400 mm

Son­der­ab­mes­sun­gen mög­lich.

Wedge con­nec­tions (see pic­tu­re) are used to­day for the se­cu­re at­tach­ment of shafts and hubs of pre­do­mi­nant­ly hea­vy disks, wheels and cou­plings in high-ton­na­ge ma­chi­nes such as ex­ca­va­tors and agri­cul­tu­ral equip­ment. In other words, wedge con­nec­tions are used when ma­chine­ry is sub­ject to se­ve­re ope­ra­ting con­di­ti­ons and mu­tu­al, im­pact tor­que. The for­ces are trans­mit­ted in the­se ca­ses by fric­tion lo­cking and if this is not suf­fi­ci­ent, the form-lo­cking con­nec­tion will co­me ad­di­tio­nal­ly in­to play. Wedge con­nec­tions brace the shaft and hub against each other with wed­ges that have an in­cli­ne of 1:100 and la­te­ral clearan­ce in the shaft and hub key­way. The wedge con­nec­tion the­re­fo­re oc­cu­p­ies a po­si­ti­on bet­ween a trac­tion con­nec­tion and a form-lo­cking con­nec­tion.

The ad­van­ta­ges of this ty­pe of con­nec­tion are the mo­re uni­form dis­tri­bu­ti­on of for­ces over the en­t­i­re area, the re­du­ced we­ar and te­ar as several la­te­ral sur­faces are si­mul­ta­ne­ous­ly load-bea­ring, and the trans­mis­si­on of hig­her and va­ria­ble tor­ques.

Dis­ad­van­ta­ges: con­si­der­ab­ly mo­re ex­pen­si­ve, mo­re mar­ked wea­ke­n­ing of shaft and hub, and high notch ef­fect.

The­re are dif­fe­rent ty­pes of wedge, which dif­fer in shape and pro­fi­le (see pic­tu­re be­low). The dif­fe­rent ty­pes of wedge are set by DIN 6881 (sadd­le keys), DIN6883 (flat keys), DIN 6886, DIN 6884 (flat gib keys), DIN 6889 (gib-head sadd­le keys).

Flat keys (DIN 6883 and 6884) have on­ly very low form-lo­cking but are cha­rac­te­ri­sed by a si­gni­fi­cant­ly lower notch ef­fect than slot wed­ges.

Sadd­le keys (DIN 6881 and 6889) are roun­ded on the lower sur­face so that they fit di­rect­ly on the shaft dia­me­ter (trans­mis­si­on of for­ce the­re­fo­re by fric­tion lo­cking).

Tan­gen­ti­al keys (DIN 268 and 271) are sui­ta­ble for high and va­ria­ble tor­ques. They are al­so used for split hubs (e.g. for fly­wheels). In this ca­se, a pair of wed­ges are pla­ced 120 de­grees against each other tan­gen­ti­al­ly on the shaft cir­cum­fe­rence..

Plea­se com­ple­te the form be­low and we will help you as quick­ly as pos­si­ble. The form is al­so avail­ab­le as a pdf file to down­load, com­ple­te and fax to us. Down­load PDF

Key In­for­ma­ti­on Re­qui­red



Your De­tails

*Man­da­to­ry fiel­ds

Tech­ni­cal Drawing

Di­men­si­ons Avail­ab­le
Width w
6 — 36 mm

Height h
2 — 9 mm

Length l
20 — 400 mm

Cus­to­mer di­men­si­ons avail­ab­le on agree­ment.

Wedge con­nec­tions (see pic­tu­re) are used to­day for the se­cu­re at­tach­ment of shafts and hubs of pre­do­mi­nant­ly hea­vy disks, wheels and cou­plings in high-ton­na­ge ma­chi­nes such as ex­ca­va­tors and agri­cul­tu­ral equip­ment. In other words, wedge con­nec­tions are used when ma­chine­ry is sub­ject to se­ve­re ope­ra­ting con­di­ti­ons and mu­tu­al, im­pact tor­que. The for­ces are trans­mit­ted in the­se ca­ses by fric­tion lo­cking and if this is not suf­fi­ci­ent, the form-lo­cking con­nec­tion will co­me ad­di­tio­nal­ly in­to play. Wedge con­nec­tions brace the shaft and hub against each other with wed­ges that have an in­cli­ne of 1:100 and la­te­ral clearan­ce in the shaft and hub key­way. The wedge con­nec­tion the­re­fo­re oc­cu­p­ies a po­si­ti­on bet­ween a trac­tion con­nec­tion and a form-lo­cking con­nec­tion.

The ad­van­ta­ges of this ty­pe of con­nec­tion are the mo­re uni­form dis­tri­bu­ti­on of for­ces over the en­t­i­re area, the re­du­ced we­ar and te­ar as several la­te­ral sur­faces are si­mul­ta­ne­ous­ly load-bea­ring, and the trans­mis­si­on of hig­her and va­ria­ble tor­ques.

Dis­ad­van­ta­ges: con­si­der­ab­ly mo­re ex­pen­si­ve, mo­re mar­ked wea­ke­n­ing of shaft and hub, and high notch ef­fect.

The­re are dif­fe­rent ty­pes of wedge, which dif­fer in shape and pro­fi­le (see pic­tu­re be­low). The dif­fe­rent ty­pes of wedge are set by DIN 6881 (sadd­le keys), DIN6883 (flat keys), DIN 6886, DIN 6884 (flat gib keys), DIN 6889 (gib-head sadd­le keys).

Flat keys (DIN 6883 and 6884) have on­ly very low form-lo­cking but are cha­rac­te­ri­sed by a si­gni­fi­cant­ly lower notch ef­fect than slot wed­ges.

Sadd­le keys (DIN 6881 and 6889) are roun­ded on the lower sur­face so that they fit di­rect­ly on the shaft dia­me­ter (trans­mis­si­on of for­ce the­re­fo­re by fric­tion lo­cking).

Tan­gen­ti­al keys (DIN 268 and 271) are sui­ta­ble for high and va­ria­ble tor­ques. They are al­so used for split hubs (e.g. for fly­wheels). In this ca­se, a pair of wed­ges are pla­ced 120 de­grees against each other tan­gen­ti­al­ly on the shaft cir­cum­fe­rence..

Plea­se com­ple­te the form be­low and we will help you as quick­ly as pos­si­ble. The form is al­so avail­ab­le as a pdf file to down­load, com­ple­te and fax to us. Down­load PDF

Key In­for­ma­ti­on Re­qui­red

Your De­tails

*Man­da­to­ry fiel­ds

Contact

Contact form

Contact details
Crum­menerl GmbH (Of­fice)
Ban­ne­werth­str. 18
58840 Plet­ten­berg
Ger­ma­ny

Crum­menerl GmbH (goods re­cei­ving / goods is­sue / truck ac­cess)
Ban­ne­werth­str. 24c
58840 Plet­ten­berg
Ger­ma­ny

Pho­ne: +49 2391 91796–0
Fax: +49 2391 91796–30
Mail: info@crummenerl-gmbh.de
Web: www.crummenerl-gmbh.de

Contact details

Crum­menerl GmbH (Of­fice)
Ban­ne­werth­str. 18
58840 Plet­ten­berg
Ger­ma­ny

Crum­menerl GmbH (goods re­cei­ving / goods is­sue / truck ac­cess)
Ban­ne­werth­str. 24c
58840 Plet­ten­berg
Ger­ma­ny

Pho­ne: +49 2391 91796–0
Fax: +49 2391 91796–30
Mail: info@crummenerl-gmbh.de
Web: www.crummenerl-gmbh.de

Contact form