Standard Curved Roller Cage part number structure example CR 3 - 110 - 10Z center radius applicable type part number

ADVANTAGES Figure H-2 Ball Contact Profile Adjustment Free NB's BG type is a compact single axis actuator which integrates a slide guide and precision ball screw. BG type offers compact dimensions and outperforms conventional positioning tables. This is made possible by a unique "U" shaped guide rail and slide block which provides multiple functions of a guide block and a ball screw nut combined into a single unit. The "U" shaped guide rail offers high rigidity against bending moment. This structural feature allows for integrated framework of machinery or equipment and can be cantilevered. Additionally,...

ACTUATOR PART NUMBER STRUCTURE Part number for BG type is described as follows. BG Type is categorized as either high grade (H) or precision grade (P). ⑩ ② size ③ ball screw lead ④ type of block A 1 long block B 2 long blocks C 1 short block D 2 short blocks part number precision grade high ※precision high ※precision high ※precision high ※precision high ※precision high ※precision high ※precision high ※precision high ※precision high ※precision high ※precision high ※precision ⑧ cover and bellows without top cover with top cover + sub table with bellows ○○ sensor cable outlet position (refer to...

ACTUATOR ALLOWABLE SPEED Allowable speed of BG type is subject to the type of motor and operating conditions. The speed may also be limited by the critical speed of the ball screw. Use caution when operating at high speeds or using long rails. Table H-2 Allowable Speed part number rail length speed mm mmsec part number rail length speed mm mmsec part number rail length speed mm mmsec part number rail length speed mm mmsec part number Table H-3 Mass of BG type Actuator The mass of the BG type is listed in Table H-3 and slide block mass is listed in Table H-4. Figure H-5 Guide Rail Length and Allowable...

ACTUATOR INERTIA Inertia of the slide block and ball screw of BG type are shown in Table H-5. Table H-5 Inertia (reference) Table H-5 Inertia (reference) part number part number without top cover with top cover long block short block long block short block 1 block 2 blocks 1 block 2 blocks 1 block 2 blocks 1 block 2 blocks A B C D A B C D RIGIDITY By utilizing four-circuit and four-point contact structure, the BG type provides extremely high rigidity. Figure H-6 shows displacement of each size of long block against radial load. Table H-6 shows the moment of inertia of area of guide rails. Figure...

ACTUATOR ACCURACY Table H-7 shows accuracy of BG type. Positioning Repeatability After setting an arbitrary position, from one end, move the drive block to this position and measure the stop position. Repeat the positioning and measurement process 7 times with respect to the setting position at the midpoint and near both ends of travel. Take the maximum difference and divide it by 2, then indicate it with a positive and negative sign as the test result. rail positioning repeatability positioning accuracy running parallelism B part length high precision high precision high precision number mm...

ACTUATOR RATED LIFE To obtain the rated life of the BG type, calculate the rated life of the guide portion, ball screw portion and support bearing portion. Use the minimum value as the rated life of the BG type. Table H-8 Contact Coefficient fC number of blocks in close contact on one axis Use the following equation for calculating the rated life of guide portion. A. Life of Guide Portion Table H-9 Applied Load Coefficient f W operating conditions vibration, impact applied load coefficient f W LG: rated life km C: contact coefficient refer to TableH-8 　f f W: applied load coefficientrefer to...

A.1.c. P T for Vertical Move i during uniform motion TC P B.1.a. For Horizontal Move i during uniform motion ac P Table H-11 Sliding Resistance (fb) of a Single Block (Seal Resistance) high grade (H) precision grade (P) P TaEp(MpLm aZ)Ey(MyLm aX)ErMrL ………………… α α 9 Note that the values of (M pLm aZ) and (MyLm aX) will be treated as 0 (zero) α α when the calculated value is negative. 10 P TdEp(MpLm dZ)Ey(MyLm dX)ErMrL ……………… α α Note that the values of (M pLm dZ) and (MyLm dX) will be treated as 0 (zero) α α when the calculated value is negative. In case of load coming from different direction...

ACTUATOR LUBRICATION MOTOR BRACKET CONFIGURATIONS & APPLICABLE MOTORS ●BG type contains a lithium soap based grease. (Multemp PS No.2, KYODO YUSHI) Apply similar type of grease for the lubrication as required depending on the operating conditions. Figure H-15 Location of Grease Fitting NB provides optional motor brackets to easily install most popular motors. Table H-13 Applicable Motors Applicable motors ●Use the grease fitting to lubricate the slide block. For ball screw portion apply grease directly to the surface of screw shaft. ※BG15 slide block has φ2mm oil holes instead of grease fitting....

Figures inside( ) indicates mass of the motor mount adapter plate. Adapter Plate Al (Mass: 9g) Recommended Coupling: XBW-15C2(Nabeya Bi-tech Kaisha) Adapter Plate AS (Mass: 8g) Recommended Coupling: LAD-15C(Sakai Manufacturing Co., Ltd.; Adapter Plate A3 (Mass: 9g) Recpmmended Cpupling: LAD-15C(Sakai Manufacturing Co., Ltd.] Adapter Plate A4 (Mass: 8g) Recommended Coupling: LAD-15C(Saka Manufacturing Co Ltd ] Adapter Plate A5 (Mass: 4g) Recommended Coupling: XBW-15C2(Nabeya Bi-tech Kaisha) Adapter Plate A6 (Mass: 4g) Recommended Coupling: XBW-15C2(Nabeya Bi-tech Kaisha) (opposite side) Adapter...

Figures inside( ) indicates mass of the motor mount adapter plate. Adapter Plate Al (Mass: 38g) Recommended Coupling: SFC-010DA2(Miki Pulley Co . Ltd) Adapter Plate A3 (Mass: 39g) Recommended Coupling: SFC-010DA2(Miki Pulley Co., Ltd.) Adapter Plate A5 (Mass: 26g) Recommended Coupling: SFC-010DA2(Miki Pulley Co., Ltd.) Adapter Plate A6 (Mass: 1 Og) Recommended Coupling: SFC-010DA2(Miki Pulley Co., Ltd.) Adapter Plate A8 (Mass: 1 2g) Recommended Coupling: SFC-010DA2(Miki Pulley Co., Ltd.) Adapter Plate A9 (Mass: 14g) Adapter Plate AA(Mass: 46g) Recommended Coupling: SFC-010DA2(Miki Pulley Co.,...