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Model
Pin
Bushing
OEM PIN
Location
Spring Products
Pin Type
Size Lock Size SRI
F
*
R
*
H
*
PIN Qwik Kit
TM
Bushing
Lubraflex
TM
Bushing
Generic
Bushing
WESTERN STAR
1.12" x 6.90"
5.63"
1.37" x 4.00" PLK 37121-3412
X
BSP63-2
BSA110-1
WHITE
F3W-120
12000#
1.00" x 6.25"
.51"
†
1.25" x 4.00" NJK
506267
X X BSP10-6
BSA101-1
VOLVO / GMC
AERO Model
w/German
Springs
1.12" x 7.00"
5.48"
1.37" x 4.00" PLK
37121-0001
3082276
3974787
X X BSP24-2
BSA110-5
Bushing O.D.
1.3825
BSL110-4
BSG110-4
1.12" x 7.00"
5.48"
1.37" x 4.00" PLK
37121-0001
3082276
3974787
X BSP24-2
BSA110-3
Bushing O.D.
1.3770
BSL110-4
BSG110-4
1989 - Present
w/Hendrickson
Springs
1.12" x 7.00"
5.48"
1.37" x 4.00" PLK
37121-0001
3082276
3974788
X X BSP24-2
BSA110-1
Bushing O.D.
1.3735
BSL110-4
BSG110-4
1989 - Present
w/Hendrickson
Springs
1.12" x 7.00"
5.48"
1.37" x 4.00" PLK
37121-0001
3082276
3974787
X BSP24-2
BSA110-3
Bushing O.D.
1.3770
BSL110-4
BSG110-4
Models
N10, N12
Grease fitting
port on large
end of pin
1.31" x 7.03"
5.59"
1.77" x 4.12"
1614230
1075723
X X X BSP83-1
BSG0078-1
Grease fitting
port on small
end of pin
Spring Eye Service Tools - Spring Product Support Items
HAND SET ARBOR
INSTALLATION TOOL PART No.
Application
ALIGNMENT PIN LONG
DRIVE PIN
PART No.
Application
AIR HAMMER DRIVE ARBOR
REMOVAL TOOL
PART No.
Application
ST-1000-1
(Fits all 1" pins)
ST-1000-11
(Fits all 1" pins)
ST-1000-5
(Fits all 1" pins)
ST-1125-1
(Fits all 1 1/8" pins)
ST-1125-11
(Fits all 1 1/8" pins)
ST-1125-5
(Fits all 1 1/8" pins)
ST-1250-1
(Fits all 1 1/4" pins)
ST-1250-11
(Fits all 1 1/4" pins)
ST-1250-5
(Fits all 1 1/4" pins)
ST-1375-1
(Fits all 1 3/8" pins)
ST-1375-11
(Fits all 1 3/8" pins)
ST-1375-5
(Fits all 1 3/8" pins)
AIR HAMMER SET ARBOR
INSTALLATION TOOL
PART No.
Application
ALIGNMENT PIN SHORT
DRIVE PIN
PART No.
Application
AIR HAMMER
DRIVE SHANK
PART No.
Application
ST-750-6
(Fits all 3/4" pins)
ST-1000-12
(Fits all 1" pins)
ST-50-9
general
SPECIAL BUSHING APPLICATIONS
MODEL
Description
Part No.
Eaton, Fuller
Spicer, Rockwell
Bell Housing Bushing
(clutch arm shaft)
20M10-2
SPECIAL PIN APPLICATIONS
MODEL Description OEM No. OEM Spec.
Part No. Remarks
Eagle Bus pin-lower
010104003
1.889 x 7.79" 95.21.1 Upper and Lower
pin-upper
050107003
1.494 x 6.46" 95.22.1 Lateral Pins
S.R.I. LETTERING SYSTEM
DIMENSION
—
INCREMENTS
BASE
LETTER
+
INCREMENTS
O.D.
1/16"
J=1"
1/16"
I.D.
1/16"
J=1"
1/16"
LENGTH
1/4"
K=4"
1/4"
S.R.I. NUMBERING SYSTEM
S.R.I. Spring Research Institute Standardized Numbering System for Spring Eye Bushings
1ST LETTER REPRESENTING O.D.
“J” is 1" ± each letter is 1/16" - “K” = 1 1/16" - “I” = 15/16"
2ND LETTER REPRESENTS I.D.
“J” is 1" ± each letter is 1/16" - “K” = 1 1/16" - “I” = 15/16"
3RD LETTER REPRESENTS LENGTH
“K” is 4" ± each letter is 1/4" = “J” is 3 3/4" - “L” is 4 1/4"
In addition, bushing material may be indicated with a two or three letter suffix.
For example: SB = Steel Backed Bronze.
ST-875-6
(Fits all 7/8" pins)
ST-1125-12
(Fits all 1 1/8" pins)
ST-1000-6
(Fits all 1" pins)
ST-1250-12
(Fits all 1 1/4" pins)
ST-1125-6
(Fits all 1 1/8" pins)
ST-1375-12
(Fits all 1 3/8" pins)
ST-1250-6
(Fits all 1 1/4" pins)
ST-1375-6
(Fits all 1 3/8" pins)
1.31" x 7.03"
5.59"
1.77" x 4.12"
1614229
1076334
X X X BSP85-1
BSG0078-1
STEMCO Kaiser 4641 Industrial Dr., Millington, Michigan 48746
page 30
* F = Spring front eye, R = Spring rear eye, H = Hanger **Threaded pin ***Kenworth Dealer Bushings
†
From opposite grease fitting end
‡
From grease fitting end SRI = Spring Research Institute
Front Spring Pins and Bushings
revision date 11/2012
WESTERN STAR,
WHITE, VOLVO / GMC