GRW - Spindle Ball Bearings

Spindle Ball Bearings

GRW Spindle Ball Bearings are the result
of continuous further development of our
product quality.
Innovative ideas and state of the art
production systems as well as more than
50 years of experience in the manufacturing
of high precision miniature and small ball
bearings form the basis for our spindle ball
bearing programme.

Particular performance characteristics:

High speed applications
Exceptional corrosion resistance
Excellent smooth running characteristics
High load capacity
Outstanding rigidity
Greatest possible cleanliness by clean room assembly
Choice of 15° or 25° contact angle
Covered versions are also available on request

Product Description and
Coding of the
GRW Spindle Ball Bearings

Hybrid spindle ball bearings_________

Rings and balls from non-
corrosive material_________________

Basic code e.g.__________________

608

Dimensional, form and running
accuracy P4 or P2 resp.
ABEC7 or ABEC9 e.g._____________

Contact angle 15°________________

D15

GRW function test_______________

GPR

Duplex spindle ball bearings are
calibrated into groups according
to bore and outer diameter___________

Duplex spindle ball bearings are
available in back to back
arrangement (-1), face to face
arrangement (-2) or tandem arrange-
ment (-3) with low (L), medium (M)
or heavy (S) preload e.g.___________

-1L

Load direction of the outer
ring is marked on the outer diameter.

GRW spindle ball bearings are
non-seperable angular contact
ball bearings with one shoulder on
the outer ring. As a result axial
loads can only be applied in one
direction._______________________

AC1

Outer ring guided, solid phenolic
retainer__________________________

Ready for assembly,
oiled (e.g. L001) or
greased (e.g. G331) e.g.__________

L001

Types	Dimensions			DIN ISO Load Ratings		Limiting Speed*	Preload
	d [mm]	D [mm]	B [mm]	C_or [N]	C_r [N]	ng [min^-1]	light (L) [N]	medium (M) [N]	heavy (S) [N]
623 AC1 TA	3	10	4	265	669	200.000	5	10	20
674 AC1 TA	4	7	2	144	340	220.000	5	7	10
624 AC1 TA	4	13	5	558	1342	184.000	5	16	32
634 AC1 TA	4	16	5	746	1632	160.000	8	24	49
625 AC1 TA	5	16	5	746	1632	166.000	8	24	49
635 AC1 TA	5	19	6	1322	2676	125.000	13	40	80
686 AC1 TA	6	13	3,5	366	917	140.000	5	14	28
686/001 AC1 TA	6	13	5	366	917	140.000	5	14	28
626 AC1 TA	6	19	6	1322	2676	125.000	13	40	80
607 AC1 TA	7	19	6	1322	2676	125.000	13	40	80
627 AC1 TA	7	22	7	1753	3597	120.000	18	54	108
688 AC1 TA	8	16	4	862	1767	114.000	7	21	42
608 AC1 TA	8	22	7	1753	3597	120.000	18	54	108
689 AC1 TA	9	17	4	975	1888	104.000	8	23	45
609 AC1 TA	9	24	7	2043	3398	114.000	17	51	102
629 AC1 TA	9	26	8	2833	5463	100.000	28	85	170
6800 AC1 TA	10	19	5	1098	1997	110.000	8	24	48
6900 AC1 TA	10	22	6	1552	2889	115.000	15	44	88
6900A AC1 TA	10	22	6	1557	2893	115.000	15	44	88
6000 AC1 TA	10	26	8	2833	5463	100.000	26	79	158
6200 AC1 TA	10	30	9	3305	5735	90.000	28	86	172
6801 AC1 TA	12	21	5	1214	1999	79.500	8	24	48
6901 AC1 TA	12	24	6	1760	3072	75.000	15	46	92
6001 AC1 TA	12	28	8	2680	4603	92.000	20	61	121
6802 AC1 TA	15	24	5	1614	2309	71.000	12	35	70
6902 AC1 TA	15	28	7	2941	4855	68.500	26	77	154
6002 AC1 TA	15	32	9	3960	6482	61.000	34	101	202
6803 AC1 TA	17	26	5	1641	2270	57.000	9	27	54
6903 AC1 TA	17	30	7	3248	5086	57.000	25	75	150
6804 AC1 TA	20	32	7	2870	3865	55.000	19	58	115
6904 AC1 TA	20	37	9	4135	6870	53.000	34	103	206
6805 AC1 TA	25	37	7	3120	3630	50.000	18	54	109

3/16 AC1 TA	4,763	12,7	3,967	558	1342	184.000	5	14	28
1/4A AC1 TA	6,35	15,875	4,978	755	1638	123.000	5	15	30
1/2/001 AC1 TA	12,7	28,575	7,938	2680	4603	86.000	20	61	121

The speed limits indicated in the table refer to resiliently preloaded individual bearings
for the following, standardized operating conditions:
rotating inner ring, low external load, good thermal conductivity, high form accuracy,
exact alignment of the surrounding parts, oil lubrication

Coding examples:

•

Spindle ball bearings
single bearing	SV608 P4 D15 GPR AC1 TA L001
duplex bearings in back to back arrangement	SV608 P4 D15 GPR X -1L AC1 TA G331

•

Hybrid spindle ball bearings
single bearing	HYSV608 P4 D15 GPR AC1 TA L001
duplex bearings in back to back arrangement	HYSV608 P4 D15 GPR X -1L AC1 TA G331