DW and GDW Series / MDW and MGDW Series

DW GDW series bearings and MDW and MGDW series bearings are manufactured to AS27647 per AS7940. These airframe control and aerospace bearings are Made in USA.

Aircraft Control Bearing

Manufactured to AS27647 per AS7949
Extra wide double row ball bearing
All external surfaces except bore and stainless steel seal retainers are cadmium plated
Installed with PTFE seals
Pre-lubricated (see grease specifications)
These series is dimensionally interchangeable except the GDW series can be re-lubricated, through holes and a groove in the outer ring

MDW and MGDW Series Bearings

Precision Series tolerances in light blue
When ordering precision parts be sure to add the “M” prefix to the standard part number

(Click on Bearing Part Number to get 2D/3D CAD files from VirtualCAD)
Bearing Part Number
	MS 27647-
	Bored (in.)
	Outside Diameter D (in.)
	Inner Ring Width B (in.)
	Outer Ring Width C (in.)
	Inner Land Diameter
	Inner Ring Chamfer
	Outer Ring Chamfer
	Radial Limit Load Rating
	Thrust Limit Load Rating
+.0000 -.0005
	+.0000 -.0003
	+.0000 -.0005
	+.0000 -.0004
	+.000 -.005
	+.0000 -.0025
	+.000 -.005
	+.000 -.005
	d₁ (in.)
	c₁* (in.)
	c* (in.)
	(lbs.) †
	(lbs.) †
DW4K2*
	-4A
	0.2500
	0.6250
	0.562
	0.500
	0.339
	0.005
	0.016
	1400
	500
GDW4K*
	-4AG
	0.2500
	0.6250
	0.562
	0.500
	0.339
	0.005
	0.016
	1400
	500
DW4K*
	-4
	0.2500
	0.7500
	0.875
	0.750
	0.380
	0.005
	0.016
	2770
	900
GDW4K*
	-4G
	0.2500
	0.7500
	0.875
	0.750
	0.380
	0.005
	0.016
	2770
	900
DW4
	–
	0.2500
	0.7500
	0.875
	0.750
	0.375
	0.005
	0.016
	3750
	1240
GDW4
	–
	0.2500
	0.7500
	0.875
	0.750
	0.375
	0.005
	0.016
	3750
	1240
DW5
	-5
	0.3125
	0.8750
	0.938
	0.813
	0.469
	0.005
	0.016
	5140
	1600
GDW5
	-5G
	0.3125
	0.8750
	0.938
	0.813
	0.469
	0.005
	0.016
	5140
	1600
DW6
	-6
	0.3750
	1.0625
	1.188
	1.063
	0.573
	0.005
	0.016
	8440
	2600
GDW6
	-6G
	0.3750
	1.0625
	1.188
	1.063
	0.573
	0.005
	0.016
	8440
	2600
DW8
	-8
	0.5000
	1.4375
	1.500
	1.375
	0.712
	0.005
	0.032
	15520
	4700
GDW8
	-8G
	0.5000
	1.4375
	1.500
	1.375
	0.712
	0.005
	0.032
	15520
	4700

wdt_ID	Part Number	MS 27647-	Bore d (in.)<br>+.0000 to -.0005<br>+.0000 to -.0003	Outside Diameter D (in.)<br>+.0000 to -.0005<br>+.0000 to -.0004	Inner Ring Width B (in.)<br>+.000 to -.005<br>+.0000 to -.0025	Outer Ring Width C (in.)<br>+.000 to -.005<br>+.000 to -.005	Inner Land Diameter<br>d1 (in.)	Inner Ring Chamfer<br>c1 (in.)	Outer Ring Chamfer<br>c (in.)	Radial Limit Load Rating (lbs.) †	Thrust Limit Load Rating (lbs.) †	Footnote(**)
1	DW4K2*	-4A	0.25	0.625	0.562	0.500	0.339	0.005	0.016	1400	500	Retainer Type
2	GDW4K*	-4AG	0.25	0.625	0.562	0.500	0.339	0.005	0.016	1400	500	Retainer Type
3	DW4K*	-4	0.25	0.75	0.875	0.750	0.380	0.005	0.016	2770	900	Retainer Type
4	GDW4K*	-4G	0.25	0.75	0.875	0.750	0.380	0.005	0.016	2770	900	Retainer Type
5	DW4	–	0.25	0.75	0.875	0.750	0.375	0.005	0.016	3750	1240
6	GDW4	–	0.25	0.75	0.875	0.750	0.375	0.005	0.016	3750	1240
7	DW5	-5	0.3125	0.875	0.938	0.813	0.469	0.005	0.016	5140	1600
8	GDW5	-5G	0.3125	0.875	0.938	0.813	0.469	0.005	0.016	5140	1600
9	DW6	-6	0.375	1.0625	1.188	1.063	0.573	0.005	0.016	8440	2600
10	GDW6	-6G	0.375	1.0625	1.188	1.063	0.573	0.005	0.016	8440	2600
11	DW8	-8	0.5	1.4375	1.500	1.375	0.712	0.005	0.032	15520	4700
12	GDW8	-8G	0.5	1.4375	1.500	1.375	0.712	0.005	0.032	15520	4700
	Part Number	MS 27647-	Bore d (in.)<br>+.0000 to -.0005<br>+.0000 to -.0003	Outside Diameter D (in.)<br>+.0000 to -.0005<br>+.0000 to -.0004	Inner Ring Width B (in.)<br>+.000 to -.005<br>+.0000 to -.0025	Outer Ring Width C (in.)<br>+.000 to -.005<br>+.000 to -.005	Inner Land Diameter<br>d1 (in.)	Inner Ring Chamfer<br>c1 (in.)	Outer Ring Chamfer<br>c (in.)	Radial Limit Load Rating (lbs.) †	Thrust Limit Load Rating (lbs.) †	Footnote(**)

† Refer to the Technical Info section for Bearing Life Calculations.

* Retainer Type

Notes:

Do not use bearings as track rollers, cam follower rolls or for similar applications.
Check with Schatz Bearing Corporation for current approval status.
Contact Schatz Bearing Corporation’s Engineering Department for further technical information.
Check with Schatz Bearing Corporation’s Sales Department for price and availability.