JPH0329721U - - Google Patents

Info

Publication number
JPH0329721U
JPH0329721U JP1989091374U JP9137489U JPH0329721U JP H0329721 U JPH0329721 U JP H0329721U JP 1989091374 U JP1989091374 U JP 1989091374U JP 9137489 U JP9137489 U JP 9137489U JP H0329721 U JPH0329721 U JP H0329721U
Authority
JP
Japan
Prior art keywords
ball
preload
short axis
ball bearing
tapered
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1989091374U
Other languages
Japanese (ja)
Other versions
JPH0749067Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989091374U priority Critical patent/JPH0749067Y2/en
Publication of JPH0329721U publication Critical patent/JPH0329721U/ja
Application granted granted Critical
Publication of JPH0749067Y2 publication Critical patent/JPH0749067Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/12—Arrangements for adjusting play
    • F16C29/126—Arrangements for adjusting play using tapered surfaces or wedges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07—Fixing them on the shaft or housing with interposition of an element
    • F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/10—Force connections, e.g. clamping
    • F16C2226/16—Force connections, e.g. clamping by wedge action, e.g. by tapered or conical parts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例に係る回転・直線運
動用玉軸受の一部切除正面図、第２図はその玉軸
受けを備えるマシニングセンタの要部の縦断面図
、第３図Ａは外力Ｆが作用しない場合の力の釣合
図、第３図Ｂは外力Ｆが作用した時の力の釣合図
、第３図Ｃは従来の回転・直線運動用玉軸受に外
力Ｆが作用した時の力の釣合図、第４図は圧縮応
力と歪との関係を示す応力特性図、第５図は従来
例の縦断面図である。 １……ボール保持器、１ａ……外周面、１ｂ…
…内周面、２……ボール保持部、３……ボール、
５……空間、６……予圧接当筒、７……予圧付与
手段、８……中心軸、１１……外筒（パレツトベ
ース）、７１……外周面テーパ内輪、７１ａ……
テーパ外周面、７２……内周面テーパ外輪、７２
ａ……テーパ内周面、７３……締付具。 Fig. 1 is a partially cutaway front view of a ball bearing for rotation and linear motion according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of the main part of a machining center equipped with the ball bearing, and Fig. 3A is an external force Figure 3B shows the force balance when external force F does not act. Figure 3C shows the force balance when external force F acts on a conventional ball bearing for rotation and linear motion. A force balance diagram, FIG. 4 is a stress characteristic diagram showing the relationship between compressive stress and strain, and FIG. 5 is a longitudinal cross-sectional view of a conventional example. 1...Ball holder, 1a...Outer peripheral surface, 1b...
...Inner peripheral surface, 2...Ball holding part, 3...Ball,
5... Space, 6... Preload abutting cylinder, 7... Preload applying means, 8... Center shaft, 11... Outer cylinder (pallet base), 71... Outer circumferential surface tapered inner ring, 71a...
Tapered outer circumferential surface, 72... Inner circumferential surface tapered outer ring, 72
a...Tapered inner peripheral surface, 73...Tightening tool.

Claims (1)

【実用新案登録請求の範囲】 １ 環状のボール保持器１に形成した複数のボー
ル保持部２に各ボール３を回転自在に支持させ、
各ボール３をボール保持器１の外周面１ａの外側
及び内周面１ｂの内側に突出させ、 ボール保持器１及びボール３を外筒１１内に回
転運動及び直線方向の両方向に転動自在に挿入し
て構成した回転・直線運動用玉軸受において、 ボール保持器１及び各ボール３と外筒１１との
間に環状の空間５を形成し、空間５内に予圧接当
筒６と、予圧付与手段７とを内外に嵌合させた状
態にして設け、 予圧付与手段７で予圧接当筒６を求心方向へ押
圧することにより、予圧接当筒６を介して各ボー
ル３を求心方向に押圧するように構成した事を特
徴とする回転・直線運動用玉軸受。 ２ 前記予圧付与手段７は、外周面テーパ内輪７
１と、内周面テーパ外輪７２と、締付具７３とか
らなり、 外輪７２のテーパ内周面７２ａに内輪７１のテ
ーパ外周面７１ａを挿入してテーパ嵌合させ、外
輪７２と内輪７１とにわたつて締付具７３を設け
、 締付具７３の締付力により、内輪７１と外輪７
２とをテーパー嵌合の締込み側に前進させるよう
に構成した事を特徴とする請求項１に記載した回
転・直線運動用玉軸受。 ３ 前記ボール３が締付具７３の締付力により、
予圧接当筒６と軸８とで挟圧されて弾性変形する
場合の短軸側の直径を予圧短軸直径と呼び、ボー
ル３が異常外力により異常変形して破損する恐れ
が生じる場合の短軸側の直径を許容最小短軸直径
と呼ぶものとして、 前記ボール保持器１の肉厚の寸法を予圧短軸直
径よりも小さく、許容最小短軸直径よりも大きい
値に設定した事を特徴とする請求項１又は２に記
載した回転・直線運動用玉軸受。[Claims for Utility Model Registration] 1. Each ball 3 is rotatably supported by a plurality of ball holding parts 2 formed on an annular ball holder 1,
Each ball 3 is made to protrude outside the outer peripheral surface 1a and inside the inner peripheral surface 1b of the ball holder 1, so that the ball holder 1 and the balls 3 can freely roll in both rotational and linear directions within the outer cylinder 11. In the ball bearing for rotation and linear motion constructed by inserting the ball bearing, an annular space 5 is formed between the ball retainer 1 and each ball 3 and the outer cylinder 11, and a preload contact cylinder 6 and a preload contact cylinder 6 are formed in the space 5. The preload applying means 7 is provided so as to fit inside and outside, and by pressing the preload contact cylinder 6 in the centripetal direction with the preload applying means 7, each ball 3 is moved in the centripetal direction via the preload contact cylinder 6. A ball bearing for rotation and linear motion, characterized by being configured so as to be pressed. 2 The preload applying means 7 has an inner ring 7 with a tapered outer peripheral surface.
1, an outer ring 72 with a tapered inner circumferential surface, and a fastener 73. The tapered outer circumferential surface 71a of the inner ring 71 is inserted into the tapered inner circumferential surface 72a of the outer ring 72 and taper-fitted, and the outer ring 72 and the inner ring 71 are A fastener 73 is provided across the inner ring 71 and the outer ring 7 by the tightening force of the fastener 73.
2. The ball bearing for rotational/linear motion according to claim 1, wherein the ball bearing is configured to advance toward the tightening side of tapered fitting. 3 The ball 3 is tightened by the tightening force of the tightening tool 73,
The diameter of the short axis when the ball 3 is compressed and elastically deformed between the preload contact cylinder 6 and the shaft 8 is called the preload short axis diameter. The diameter on the shaft side is referred to as the minimum allowable short axis diameter, and the wall thickness of the ball retainer 1 is set to a value smaller than the preload short axis diameter and larger than the allowable minimum short axis diameter. A ball bearing for rotational/linear motion according to claim 1 or 2.
JP1989091374U 1989-08-01 1989-08-01 Ball bearings for rotary and linear motion Expired - Lifetime JPH0749067Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989091374U JPH0749067Y2 (en) 1989-08-01 1989-08-01 Ball bearings for rotary and linear motion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989091374U JPH0749067Y2 (en) 1989-08-01 1989-08-01 Ball bearings for rotary and linear motion

Publications (2)

Publication Number Publication Date
JPH0329721U true JPH0329721U (en) 1991-03-25
JPH0749067Y2 JPH0749067Y2 (en) 1995-11-13

Family

ID=31640859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989091374U Expired - Lifetime JPH0749067Y2 (en) 1989-08-01 1989-08-01 Ball bearings for rotary and linear motion

Country Status (1)

Country Link
JP (1) JPH0749067Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009039547A2 (en) * 2007-09-28 2009-04-02 Peter Weingartner Carriage of a linear roll guide
WO2022064612A1 (en) * 2020-09-24 2022-03-31 株式会社 ムラテクノロジー Base shaft holder and electrically-driven tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5580525U (en) * 1978-11-29 1980-06-03
JPS58169220U (en) * 1982-05-07 1983-11-11 日本精工株式会社 Limited stroke bearing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5580525U (en) * 1978-11-29 1980-06-03
JPS58169220U (en) * 1982-05-07 1983-11-11 日本精工株式会社 Limited stroke bearing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009039547A2 (en) * 2007-09-28 2009-04-02 Peter Weingartner Carriage of a linear roll guide
WO2009039547A3 (en) * 2007-09-28 2009-08-13 Peter Weingartner Carriage of a linear roll guide
WO2022064612A1 (en) * 2020-09-24 2022-03-31 株式会社 ムラテクノロジー Base shaft holder and electrically-driven tool

Also Published As

Publication number Publication date
JPH0749067Y2 (en) 1995-11-13

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term