Universal joints with friction bearing GN 808

single or double
Universal joints with needle bearing

Extract from
DIN 808

Bore code:
without keyway = B + Bore-	Type EW single, with needle bearing
with keyway = K + Bore-	Type DW double, with needle bearing

d₁	d₂H7	l₁	l₂	l₃	l₄	t	Permissible r.p.m.and torque
	Bore	Type EW	Type DW			min.

22	10	48	74	24	26	12
22	12	62	88	31	26	18
25	12	56	86	28	30	13

25	16	74	104	37	30	21
28	14	60	96	30	36	13
32	16	68	104	34	36	16

32	20	86	124	43	38	24
36	18	74	114	37	40	17
42	20	82	128	41	46	18

42	25	108	156	54	48	31
45	22	95	145	47,5	50	22
50	25	108	163	54	55	26

50	30	132	188	66	56	38
58	30	122	190	61	68	29
58	32	130	198	65	68	33

Specification

Information

How to order

Steel
blank

Joint bearing surfaces, pins
case hardened

Keyway JS9 DIN 6885
Page 1

Cross holes
GN 110

Universal joints with needle bearings DIN 808 are known for their precision. They have minimal play and are long lasting.

The permissible r.p.m. of universal joints with needle bearings is higher than for those with friction bearings, but is still dependent on the load, duration of use as well as angular disposition. Ideal applications allow speeds of up to 4000 r.p.m.

Needle bearings give the universal joints at 3° to 5° angular disposition a considerably higher degree of efficiency than those fitted with friction bearings. The needle bearings have a permanent lubrication and thus do not require servicing.

On the official DIN standard sheet is d₁ = 20 (instead of 22) and 40 (instead of 42). Furthermore DIN provides for sizes d₁ = 63, 75 and 90, however, sizes d₁ = 28, 36, 45 and 58 mm are missing.

Universal joint
with needle bearing
DIN 808-50-B25-163-DW

Code No. 808
d₁50
Bore code B
d₂(s) 25
l₁(l₂) 163
Type DW

The above order example refers to universal joints with equal bores both ends d₂ and s. As specials, universal joints can also be supplied with unequal bores.