Ball Bearing/Pillow Blocks
Brand :
MISUMI
Caution
- CAD data of eccentric locking collar type is being modified.
Product Description
[Features]This is a lubrication-free pillow type ball bearing unit. 2 types are available: set screw fixed type and eccentric ring fixed type.
Accuracy: JIS B 1558, JIS B 1559
Bearing Inner Diameter Tolerance: H7 (Clearance Fit)
Operating Temperature: -10 ~ +80°C
Bearing Inner Diameter Tolerance: H7 (Clearance Fit)
Operating Temperature: -10 ~ +80°C
[ ! ]*2-M (Set Screw) angles for Set Screw Fixed Type are 120°.
[ ! ]Eccentric Ring Fixed Type has one set screw and one through hole, with an angle of 90°.
[ ! ]Eccentric rings are used to secure shafts.
[ ! ]Ball bearing moves slightly due to self-aligning function.
[ ! ]To maintain transition fit, the fit between the main body and the bearing is designed slightly tight (Except Cast Iron Type). If the bearing is inclined when delivered, insert the shaft into the bearing to adjust the inclination.
[ ! ]Eccentric Ring Fixed Type has one set screw and one through hole, with an angle of 90°.
[ ! ]Eccentric rings are used to secure shafts.
[ ! ]Ball bearing moves slightly due to self-aligning function.
[ ! ]To maintain transition fit, the fit between the main body and the bearing is designed slightly tight (Except Cast Iron Type). If the bearing is inclined when delivered, insert the shaft into the bearing to adjust the inclination.
| Type | Pillow Blocks | Component [ M ]Material | ||||
| ①Housing | ②Bearing | ③Rubber Seal | ④Set Screw | ⑤Eccentric Ring | ||
| Set Screw Fixed | PBT | Zinc Alloy Die Casting (ZDC) | SUJ2 | Nitrile Rubber (NBR Nitrile Rubber ) | SCM435 | - |
| Eccentric Ring Fixed | PBR | Zinc Alloy Die Casting (ZDC) | SUJ2 | Nitrile Rubber (NBR Nitrile Rubber ) | SCM435 | S20C |
| PBRS | Zinc Alloy Die Casting (ZDC) + Nickel Chrome Plating | SUS440C equivalent | Nitrile Rubber (NBR Nitrile Rubber ) | SUS304 | S20Cl + Nickel Chrome Plating | |
| PBRSX | Stainless Steel Cast (SCS13) | SUS440C equivalent | Nitrile Rubber (NBR Nitrile Rubber ) | SUS304 | SUS304 | |
More Information
■How to Secure the Shaft
| Set Screw Fixed | •There are two set screws at the end face of the bearing inner ring (at 120°). The shaft is connected by tightening the set screws. |
| Eccentric Ring Fixed | •Dissociate the centers of the convex outer surface at the end of the bearing inner race (part a) and the concave inner surface of the eccentric ring (part b), connect the shaft and the inner ring by forming a wedge on the circumference (Refer to Fig. 1). •Also, there is a set screw and a hole each (at the angle of 90°) on the end face of eccentric ring, which helps to prevent loosening by using the set screw as well as tightening as described above. •The D hole is for inserting a small diameter rod when loosening the connection. |