Rod ends consist of an eye-shaped head with integral shank forming a housing and a standard spherical plain bearing, or a spherical plain bearing inner ring, or a spherical plain bearing inner ring and a sliding layer between the bore of the head and the inner ring. As a rule, rod ends are available with left or right-hand female or male threads. LS rod ends have the sliding contact surface combinations steel-on-steel, steel-on-bronze, steel-on-PTFE composite material, steel-on-PTFE fabric and steel-on-PTFE plastic.

LS steel-on-steel and steel-on-bronze rod ends have very wear-resistant sliding surfaces and perform well under conditions of lubricant starvation. Rod ends with this sliding contact surface combination require regular relubrication. They are particularly suited for bearing arrangements where heavy alternating loads have to be accommodated.

LS maintenance-free rod ends sliding contact surfaces have three groups: steel-on-PTFE composite material, steel-on-PTFE fabric and steel-on-PTFE plastic. They have very low friction and can be operated without maintenance. They are used for applications where long bearing lives are required without maintenance, or where operating conditions, such as inadequate lubrication or the absence of lubrication make the use of steel-on-steel bearing inadvisable. The maintenance-free bearings are primarily intended for applications where loads are heavy and have a constant direction.

Tolerances for rod ends

Inner ring

The ∆dmp and ∆Bs of SI…E, SI…ES, SA…E, SA…ES, SIR…ES, SIRN…ES, SIA…ES, SIQ…ES, SK…ES, SF…ES, SI…C, SA…C, SI…ET-2RS, SA…ET-2RS are the same as radial spherical plain bearings GE…E, GE…ES, GE…C and GE…ET-2RS.

The ∆dmp and ∆Bs of SIGEW…ES, SFEW…ES are the same as radial spherical plain bearings GEEW…ES.

The Δdmp and ΔBs of SIBP…S,SABP…S,SIZP…S, SAZP…S,SIZJ… and SAZJ… are the same as radial spherical plain bearings GEBK…S.

Series SIJK…C, SAJK…C, SIK…C, SAK…C

d mm		∆dmp um		∆Bs um
over	incl.	max.	min.	max.	min.
－	6	+12	0	0	-150
6	10	+15	0	0	-150
10	12	+18	0	0	-150
12	18	+18	0	0	-200
18	30	+21	0	0	-200

Center height deviation

d mm		∆hs mm		∆h1s mm
over	incl.	max.	min.	max.	min.
－	6	+0.80	-1.20	+0.65	-1.05
6	20	+0.80	-1.20	+0.80	-1.20
20	30	+1.00	-1.70	+1.00	-1.70
30	45	+1.40	-2.10	+1.40	-2.10
45	60	+1.80	-2.70	+1.80	-2.70
60	80	+2.25	-3.40	+2.25	-3.40
80	125	+2.70	-3.40	+2.70	-3.40
125	200	+3.20	-4.20	+3.20	-4.20

Details of dimension and tolerance symbols see page 25.

Radial internal clearance of rod ends

Series SI…E, SI…ES,SA…E,SA…ES, SK…ES, SF…ES, SFEW…ES, SIRN…ES, SIR…ES, SIGEW…ES, SIQ…ES, SIA…ES

d mm		Group normal um
over	incl.	min.	max.
－	12	23	68
12	20	30	82
20	35	37	100
35	60	43	120
60	90	55	142
90	125	65	165
125	200	65	192

Series SI…C, SA…C, SI…ET-2RS, SA…ET-2RS, SIBP…N, SABP…N, SIZP…N, SAZP…N

d mm		Group normal um
over	incl.	min.	max.
－	12	0	32
12	20	0	40
20	35	0	50
35	60	0	60
60	80	0	72

Series SIJ…, SAJ…, SIZJ…, SAZJ…

d mm		Group normal um
over	incl.	min.	max.
－	8	10	30
8	14	15	60
14	22	40	80

Series SIJK…C, SAJK…C, SIK…C, SAK…C

d mm		Group normal um
over	incl.	min.	max.
－	12	0	32
12	20	0	40
20	30	0	50

Series SIBP…S, SABP…S, SIZP…S, SAZP…S

d mm		Group normal
over	incl.	min.	max.
－	30	0	35

Fits of rod ends

Shaft fits

Operating conditions	Tolerance
With indeterminate loads	n6, p6
Normal conditions	h6, h7

Thread

Male thread	Female thread
6g	6H
UNF-2A	UNF-2B

Shaft diameter tolerances

Shaft diameter mm			Shaft diameter tolerances um
Shaft diameter mm			h6		h7		n6		p6
over	incl.	high		low	high	low	high	low	high	low
3	6	0		-8	0	-12	+16	+8	+20	+12
6	10	0		-9	0	-15	+19	+10	+24	+15
10	18	0		-11	0	-18	+23	+12	+29	+18
18	30	0		-13	0	-21	+28	+15	+35	+22
30	50	0		-16	0	-25	+33	+17	+42	+26
50	80	0		-19	0	-30	+39	+20	+51	+32
80	120	0		-22	0	-35	+45	+23	+59	+37
120	180	0		-25	0	-40	+52	+27	+68	+43
180	200	0		-29	0	-46	+60	+31	+79	+50